Common Cannabis Seedling Problems

The cannabis plant is at its most fragile and vulnerable state as a seedling, making the growing stage prone to several problems. If you fail to take care of your marijuana seedlings during this critical stage, you will start with unhealthy looking plants that will affect the growth and future yields.

Of course, before planting, you have to ensure that the seedlings you have are from a reputable seller to avoid buying weak seeds that will give you problems from start to finish. To be on the safe side, if you are a beginner, you should buy your seedlings from any of the reputable online seedbanks.

Seedlings start with two cotyledons, already formed inside the seeds but open up after sprouting. After the cotyledons, other cannabis leaves start growing from the middle of the cannabis seedling. The leaves continue to look more like the cannabis leaves you are familiar with, as they get older.

Cannabis Seedling Problems

During this stage, you need to be extremely careful about how you handle the delicate plants if you want them to continue with healthy growth. The most common cannabis seeding problems that could change the healthy growth are overwatering, underwatering, light, nutrient, and temperature issues.

An experienced cannabis grower can easily avoid these issues, but for a newbie growing cannabis for the first time, this article explains the cannabis seedling problems you may encounter.

Most common cannabis seedling problems

1. Overwatering

Overwatering

Overwatering has more to do with the lack of oxygen than it does with burdening the seedlings with too much water. The most common symptoms of overwatered plants are droopy seedlings, moist medium, and damping. The symptoms mostly show themselves in hydroponic systems where plans grow exclusively in water.

The plant roots, immersed in water, use up the available oxygen, and they remain fine as long as they get enough of it in circulation.  If they use all the oxygen, they start to droop without wilting and showing all the other oxygen deprivation symptoms.

One of the leading causes of overwatering is planting the seedling in a large pot. A large pot holds more water that takes longer to dry out, which becomes a problem considering seedlings do not absorb too much water. Instead of using a large container for your seedling, you should start with a much smaller one that does not hold too much water.

Using a smaller pot helps the plants to grow faster.  You can change to a larger container later after the seedlings start to display significant growth. If, by any chance, you do not have any other choice but to grow your seedling in a large pot, do not panic because you can adjust the watering methods to prevent overwatering.

The following methods will help to prevent overwatering when using a large pot:-

  • Use smaller amounts of water to water the plant.
  • Using a circular motion, pour the water into the pot.
  • You also need to make sure that the top layer of the soil does not contain any moisture or dampness before resuming your next watering cycle.

On the other hand, using a small pot for a large seedling is also not a solution, and you will end up with the same weak plants. Using a small container leads to plants with bound roots. The plants later develop strange symptoms that include discoloration, nutrient deficiencies, and drooping. Root bound happens when roots wrap themselves outside the container without providing water with an escape.

Lack of drainage is also a huge problem as it prevents water from moving from the container to the soil freely. If you are using clay-based soil as your growing medium, you may encounter a few occasional overwatering issues. Ensure that the bottom of container you use for your seedlings has enough drainage holes. You should also make sure the drainage holes are devoid of any clogging for better drainage.

Another cause of overwatering is frequent watering of the seedling. Before adding any water to the container, you need to make sure that the soil is dry for the roots to get an adequate oxygen supply. Roots absorb oxygen in the water quickly, which is why they need to survive by having enough air pockets. One way of ensuring that the growing medium retains more oxygen is by using a potting mix such as perlite.

Another way of increasing air in the soil is by using air or smart pots that allow air in through the sides. You can also reduce overwatering by providing the seeds with less water, especially during the low and colder temperatures.

Bestseller No. 1
Smart Pot RCT10H 17010 Fabric Pot, 10-Gal, Tan
82 Reviews on Amazon
Smart Pot RCT10H 17010 Fabric Pot, 10-Gal, Tan
  • Assembly not required
  • Made in United States
  • Size: 10-Gal
  • Developed for, and used by commercial tree growers
Bestseller No. 2
Smart Pots 20-Gallon Smart Pot Soft-Sided Container, Tan with Strap handles
382 Reviews on Amazon
Smart Pots 20-Gallon Smart Pot Soft-Sided Container, Tan with Strap handles
  • Soft-sided fabric aeration container that has the rigidity to hold its shape
  • Provides aeration, enhancing root structure, resulting in a vigorous plant with more flowers and fruits and increased insect and disease resistance
  • Allows excess heat to escape
  • Developed for, and used by commercial tree growers
  • 20 Gallon capacity; 20 inch diameter x 15.5 inch height
-$1.00 SALE OFFBestseller No. 3
T4U Fabric Plant Grow Bags with Handle 10 Gallon Pack of 5, Heavy Duty Nonwoven Smart Garden Pot Thickened Aeration Nursery Container Black for Outdoor Flower and Vegetables
2,972 Reviews on Amazon
T4U Fabric Plant Grow Bags with Handle 10 Gallon Pack of 5, Heavy Duty Nonwoven Smart Garden Pot Thickened Aeration Nursery Container Black for Outdoor Flower and Vegetables
  • 【Breathable Fabric】 - Made of thickened and breathable non-woven fabric, environment friendly and BPA-free. Keep plants warmer in winter and cooler in summer, ideal for plant growing.
  • 【Reinforced Handles】 - The sturdy handles with X shape sewing on both sides of the bag make lifting and moving more convenient and easier without any worry of handle ripped off.
  • 【Heavy Duty Plant Bag】- Durable smart fabric pot with thickened bottom ensures more weights bearing, supporting full bag of soil and plants. Perfect for growing potato, tomato, chilli and most greens.
  • 【Prevent Root Circling】 - Excellent air permeability and drainage help prevent root circling and rotting, naturally air pruning "burns" off the exposed roots to promote plant's healthy growth.
  • 【Use it for Years】 - Breathable and thick material with automatic air-prune feature effectively reduce punctures on container's surface, keeping the grow bag in a good using condition for years.
Bestseller No. 5
Smart Pot Soft-Sided Fabric Garden Plant Container Aeration Planter Pots Tan with Strap Handles, 15 gallon, 5 Pack
11 Reviews on Amazon
Smart Pot Soft-Sided Fabric Garden Plant Container Aeration Planter Pots Tan with Strap Handles, 15 gallon, 5 Pack
  • Higher Quality Plants Grow In Less Time
  • Roots Stay Cooler During Hot Weather
  • Reusable, Inexpensive, Light Weight, Attractive, Simple Design
  • Plants Need Repotting Less Often
  • Non-Breakable Fabric Lasts Doesn't Crack From Frost Or If Dropped Read more: Benefits of Smart Pots Container Gardening, Hydroponic Containers

2. Underwatering

Underwatering

Underwatering seeds is another common problem that affects the growth of cannabis plants. Even though the problem is not as common as overwatering, underwatering also display easily visible symptoms. The symptoms include dry soil with no moisture, plant wilting, and drooping, stunted growth, twisted and discolored plants.

Underwatering happens especially with beginners that overcompensate after learning of the dangers of overwatering. Combining nutrient overdose with underwatering also causes the seedlings to turn into a dark green color, alongside all the other symptoms.

Water is an essential ingredient for plant growth, and since they lose much of it through transpiration, you need to ensure that the soil has enough moisture throughout for proper growth processes and functions.

If you allow the roots to dry out, they will eventually die, and you will have no plants to look forward to growing to maturity. Underwatering is an easy thing to fix. All you need to do is water the plants once you see the growing medium drying up or the plants wilting due to lack of water and moisture.

Water the plants regularly, even though the soil mix is hot or has many nutrients. Once the plants start adapting to frequent and enough water supply, they will come back to life fast.

3 .Nutrient Toxicity

The symptoms of too many nutrients in your seedlings include leaves that are spotted, crispy, discolored, or yellow. Other nutrient toxicity symptoms include dark leaves and tip burns. Nutrient issues come from overfeeding the seedlings with too many nutrients or too little of them.

You can also have a nutrient issue if you use the wrong nutrients.  Seedlings should use correct and enough nutrients that help them to stay green at all times. One of the main nutrient toxicities is nitrogen deficiency. Plants with nitrogen deficiency turn leaves into brown and yellow colors. The leaves also go soft before folding and falling off the plant.

Nutrient Toxicity
Dark leaves often indicate a nitrogen toxicity (too much nitrogen)

Nutrient Toxicity-2

Nutrient deficiency affects older leaves at the bottom of the plant first before it starts to impact leaves on the other parts of the plant. Another major cause of nutrient toxicity is using slow-release soil. Slow-release soil causes nutrient burn to the seedling, affecting plant growth and the final yield. One example of slow-release soil is Miracle-Gro Soil.

Contrary to what some growers believe and practice, seedlings do not need many nutrients until they are three-week-old sprouts. Nutrient toxicity also develops fast, so you should be very careful about how much you feed the seedlings.

-$15.14 SALE OFFBestseller No. 1
FoxFarm FX14054 Happy Frog Nutrient Rich and pH Adjusted Rapid Growth Garden Potting Soil Mix is Ready to Use, 12 Quart
5,982 Reviews on Amazon
FoxFarm FX14054 Happy Frog Nutrient Rich and pH Adjusted Rapid Growth Garden Potting Soil Mix is Ready to Use, 12 Quart
  • Ready to use right out of the bag
  • This unique mix is alive with beneficial soil microbes and mycorrhizal fungi
  • Dramatically expands root development enabling plants to feed more aggressively
  • Not for sale in: FL,GA,HI,IN,MO,SD
-$10.95 SALE OFFBestseller No. 2
FoxFarm Ocean Forest Potting Soil, 1.5 cu ft
3,276 Reviews on Amazon
FoxFarm Ocean Forest Potting Soil, 1.5 cu ft
  • Ocean Forest organic soil is ready to use right out of the bag
  • Ideal for containerized plantings
  • Contains earthworm castings, bat guano and micronutrients
  • Light texture and well aerated
  • Available in 1.5-Cubic feet
Bestseller No. 3
FoxFarm Ocean Forest Potting Soil Mix Indoor Outdoor for Garden and Plants | Plant Fertilizer | 12 Quarts | The Hydroponic City Stake
8,103 Reviews on Amazon
FoxFarm Ocean Forest Potting Soil Mix Indoor Outdoor for Garden and Plants | Plant Fertilizer | 12 Quarts | The Hydroponic City Stake
  • Ultimate potting soil that has everything your plants need in one bag
  • Ocean Forest is pH adjusted at 6.3 to 6.8 to allow for optimum fertilizer uptake
  • Ocean Forest has a light, aerated texture that's perfect for indoor and outdoor plants
  • Designed for containers and ready to use right out of the bag
Bestseller No. 4
Foxfarm FX14053 Ocean Forest Plant Garden PH Adjusted 12 Quarts Potting Soil Blend Mix for Containerized Plants, 11.9 Pound Bag (2 Pack)
9,301 Reviews on Amazon
Foxfarm FX14053 Ocean Forest Plant Garden PH Adjusted 12 Quarts Potting Soil Blend Mix for Containerized Plants, 11.9 Pound Bag (2 Pack)
  • QUALITY: FoxFarm Ocean Forest garden soil is the ultimate potting soil that has everything your plants need in one bag!
  • CONTENTS: 12 Quarts of a blend of earthworm castings, bat guano, sea-going fish & crab meal, forest humus, moss & more
  • PH LEVELS: Ocean Forest is pH adjusted at 6.3 to 6.8 to allow for optimum fertilizer uptake
  • BENEFITS: Encourages strong branching and a sturdy, healthy growth habit and is ideal for containerized plantings
  • SIZE: (2 Pack) Each bag weighs: 11.9 lbs. Package Dimensions (L X W X H): 18.0" x 11.0" x 15.0"
Bestseller No. 5
Mother Earth Terracraft Potting Soil with Peat Moss, Perlite, and Earthworm Castings, For Outdoor and Indoor Plants, 2 cu. ft.
967 Reviews on Amazon
Mother Earth Terracraft Potting Soil with Peat Moss, Perlite, and Earthworm Castings, For Outdoor and Indoor Plants, 2 cu. ft.
  • Mother Earth Terracraft Potting Soil is formulated with peat moss, perlite, forest products, and earthworm castings to give your plants the foundation they need to flourish
  • Our plant soil provides a nutrient charge so you don't need to apply your first round of fertilizer until weeks 2 or 3
  • Excellent for all outdoor and indoor plants
  • Use this soil in containers, in-ground landscapes or vegetable gardens, and raised beds
  • Mother Earth Terracraft Potting Soil comes ready-to-use right out of the bag

4. Lighting Issues

Too much or too little lighting is another issue that affects cannabis plants. Probably the most widely recognized lighting issue that include over the top or too minimal light, incorporates burnt out leaves, taller than normal seedlings that outgrow their size in search of light, badly crinkled leaves, and superfluous stem spaces between stem nodes. Plants get tall due to lack of enough light while they look burnt or fried when they have too little light.

light-burned-cannabis-leaves
This cannabis seedling is being burned by too-close LED grow lights
too-tall-seedlings-lack-of-light
The plant not getting enough light. It’s “reaching” upwards, trying to find the sun.

If you are growing your marijuana indoors, you can fix the lighting problem by moving the lights further or nearer your plants. If you are growing your weed outdoors, you can fix the problem by covering the plants when it gets extremely hot.

Also, ensure that all your plants, whether you are growing indoors or outdoors, get enough light exposure. During the seedling stage, cannabis plants need little lighting, but you should adjust as the plants grow.

Bestseller No. 1
DYMOND BoostGro LED Grow Light Full Spectrum Linkable 5000K Daylight + 660nm Red Indoor Plant Lighting Fixture (2 FT, Black)
1,035 Reviews on Amazon
DYMOND BoostGro LED Grow Light Full Spectrum Linkable 5000K Daylight + 660nm Red Indoor Plant Lighting Fixture (2 FT, Black)
  • 【 HIGH PERFORMANCE 】 This full spectrum LED grow light is designed to provide the benefits of natural sunlight your plant needs at different stages of growth. It is enhanced with 12 additional advanced red lamp beads (660 nm) which encourage seed growth, photosynthesis, and flowering or fruit production. It is also cost-effective and generates LOW HEAT!
  • 【 EASY INSTALLATION 】 Our grow light is plug-and-play and able to be LINKED UP to 4 units together (using the 5FT power cord provided) for additional boost. The fixture can be flush mounted or hung with 2FT hanging cables (included in the package). You can use these lights in most indoor areas, such as shelving units, kitchen cabinets, grow tents, garages, basements!
  • 【 DURABLE DESIGN 】 This professional Grow Light is FCC-certified and comes with a 1-year limited warranty. It is damp rated for use indoors in humid conditions. The modern design is in a light-weight enclosed housing, which prevents build-up of dust. Rated with a 30,000-hour lifespan. 100% satisfaction guaranteed!
  • 【 HEALTHY LIVING 】 Building an indoor garden has never been easier! Grow your own organic lettuce, tomatoes, strawberries, herbs, thyme, rosemary, basil, mint, sage, peppers, perennials, garlic, and much more!
-$30.00 SALE OFFBestseller No. 2
KingLED 2023 Newest 2000w LED Grow Lights with LM301B LEDs 5 * 5 ft Coverage Full Spectrum Grow Lights for Indoor Hydroponic Plants Greenhouse Growing Lamps Veg Bloom Daul Mode
4,872 Reviews on Amazon
KingLED 2023 Newest 2000w LED Grow Lights with LM301B LEDs 5 * 5 ft Coverage Full Spectrum Grow Lights for Indoor Hydroponic Plants Greenhouse Growing Lamps Veg Bloom Daul Mode
  • HIGH QUALITY LED GROW LIGHT: KingLED grow light has adopted the newest LM301B LEDs to provide high PAR output, high energy efficiency with 2.8 umol/J while improving light penetration. Perfect for 3’x3’ vegetative coverage and 2.5’x2.5’ flowering coverage
  • FULL SPECTRUM LED GROW LIGHT: The proportion of the spectrum has been adjusted in order to provide more matching spectrum for MJ, provides full spectrum lighting of natural light for plants, veg and bloom modes are designed to provide proper light for plants in different growth stages from seedling to flowering to greatly increase your harvest.
  • COST-EFFECTIVE LED GROW LIGHT: Different from the traditional grow lights, Our 2000W LED light adopts a high-tech SMD LEDs and reflector technology , compares to traditional 1000W HPS/MH while consuming only 200W! It provides brighter light and save more electricity which also can save a lot of money for you
  • DURABLE LED GROW LIGHT:Multiple high-speed mute fans and upgraded aluminum radiators enable the light bulb to work at 50°F to 60°F that is lower than other lamps. In a lower temperatures, your plant won’t be burned which could increase your lighting time and promote plant growth, Super long use time, so that you do not have to change the light frequently
  • PROFESSIONAL SERVICE: 3 years Professional Service and free return for 90 days. KingLED Laboratory has more than seven years of sales with after-sale service team professional in design, sales and production for the best products and service for the majority of customers. If you have any questions, please contact us freely, and we will reply within 24 hours to provide you a satisfactory result
-$13.00 SALE OFFBestseller No. 3
GooingTop LED Grow Light,6000K Full Spectrum Clip Plant Growing Lamp with White Red LEDs for Indoor Plants,5-Level Dimmable,Auto On Off Timing 4 8 12Hrs
13,474 Reviews on Amazon
GooingTop LED Grow Light,6000K Full Spectrum Clip Plant Growing Lamp with White Red LEDs for Indoor Plants,5-Level Dimmable,Auto On Off Timing 4 8 12Hrs
  • 6000K White Light - equipped with 10 Red + 74 White LEDs, this growing Lamp is similar to the full-spectrum sunlight at noon,that is professionally designed for indoor garden plants.Moreover, its color rendering index is as high as 95, the light is soft and flicker-free, which is very suitable for reading lamp
  • Timer Function & Multiple Settings - this growing light offer the timer function with 3 options that is 4Hrs or 8Hrs or 12Hrs, it is based on a 24 hour cycle from the time you set the timer.For example,when keeping power ON, if you select 8 Hrs,it will turns ON for 8 hours per 24 hours.The other two timer settings are the same.
  • Easy to Install - with flexible Gooseneck & strong clamp,it allows you to place the growth light in any direction to provide the best lighting angle for your plants,meet the cover around the plant.Powered by USB or AC Power Plug
  • High Efficiency LED Lamp - as for LED power draw this seedling lights just comsume about 10watt and is equavalent to a 50W Halogen Bulb.Estimately monthly cost roughly $2 in electricity (12 hours a day). It is a great gift if you growing some small house plants.
  • 【365 Days Worry-free Warranty】GooingTop service team offer 365 days warranty and 24h friendly customer service. If there are ever any issues about the product, please feel free to contact us and we will send you a new replacement or full refund.
-$23.50 SALE OFFBestseller No. 4
Spider Farmer SF1000D LED Grow Light with Samsung LM301B Diodes & IR Lighting Full Spectrum Grow Light for Indoor Plants Veg Bloom Growing Lamps for 3x3/2x2 Grow Tent 2.5g/w
1,768 Reviews on Amazon
Spider Farmer SF1000D LED Grow Light with Samsung LM301B Diodes & IR Lighting Full Spectrum Grow Light for Indoor Plants Veg Bloom Growing Lamps for 3x3/2x2 Grow Tent 2.5g/w
  • UPDATE DIODE and BETTER LIGHT PENETRATION: SF1000D changed from SAMSUNG 301D Diodes to More Expensive 301B Diodes-the highest light output LED available at present, delivers powerful light output and uniform canopy penetration to resulting maximum higher yields compared with other LED grow lights.
  • SUNLIGHT SPECTRUM: Blue, Full spectrum 660-665nm,3000K,5000K and IR, ideal for all growth stages (germination, clones or cuttings, mothers, vegetative, and flowering applications), help you solve of home’s natural light wasn't going to be adequate, turn your seeds into your own supply, produce beautiful high yielding plants.
  • LOWER RUNNING COSTS: SF1000D grow lights with high Energy Efficiency, Better Light Penetration. Consuming only 100W, achieve better or comparable results than 200 watts HID with 50% less heat and power consumption. Get 40% higher yields with less energy compared with other brand diodes. Veg footprint is 3 x 3 ft, Flowering footprint is 2 x 2 ft.
  • SAFER & MORE RELIABILITY: No Fan ZERO Noise, large areas of solid aluminum heat sink, special protective covers for cables, waterproof LED board, 50% longer lifespan compare with other brand lights. Allowing you to grow with confidence.
  • VALUE FOR THE MONEY: SPIDER FARMER LED Plant Lights are often copied but will never have our quality or commitment, we provide 5 years of after-service at a local maintenance center(US/CA/UK/EU/AU). Make sure you purchase authentic Spider Farmer grow lights, really can give you high-quality grow lights – at a price that is affordable. For any questions, feel free to e-mail us, and we will help you resolve them. Quality backed by our ironclad!!!
Bestseller No. 5
VIVOSUN VSF6450 Foldable LED Grow Light with Samsung & OSRAM Diodes, Full-Spectrum Sunlike Light for Indoor Plants, Seedlings, Veg, and Blooming, Plant Grow Lamps for 4’ x 4’ / 5’ x 5’ Grow Tents
9 Reviews on Amazon
VIVOSUN VSF6450 Foldable LED Grow Light with Samsung & OSRAM Diodes, Full-Spectrum Sunlike Light for Indoor Plants, Seedlings, Veg, and Blooming, Plant Grow Lamps for 4’ x 4’ / 5’ x 5’ Grow Tents
  • Full-Spectrum Sunlike Lighting: Designed with 2142 Samsung LM301 (3000K+6500K) lights and 84 660nm Osram lights in the white, warm-white, red, and far-red light spectrums; The 660nm diodes improve photosynthesis
  • Daisy-Chain-Ability: The daisy-chain ability allows connections of up to 160 lights in a series; We offer you a digital timer to control/preset the light; It can be used for grow tents (perfect for 4’ x 4’ or 5’ x 5’)
  • Foldable Design & Detachable Ballast: The grow light can be folded up to 180° making it easy to install or store; It comes with a detachable ballast and a 9.8ft. long power cord with 120V America NEMA 5-15P plug
  • Dimmable & Uniform Lighting: Comes equipped with a dimming knob with 6 levels of light intensity ranging from 0% (off), to 40%, 50%, 60%, 80% and 100%; The light bar design has IP66 water prevention
  • High Efficiency & Stability: With LM301 Diodes & OSRAM 3030 and the Inventronics driver, this grow light achieves 40% higher PPFD than HID lamps and delivers high-efficiency (2.8μmol/J) with low power consumption (645W)

5. High Temperatures

Another common cannabis seedling problem is high temperature. High temperature leads to leaves looking like canoes and tacos displayed by curling edges. Besides curling, the leaves also show spots and wilt. The best temperature levels to maintain in your grow room if you want your plants to grow healthy is between 68 and 78 degrees Fahrenheit.

heat-too-high-cannabis.jpg
Heat gets too high
heat-seedling-curling-down.jpg
Leaves sort of fold downwards due to heat, too, like this seedling

To ensure that the temperature stays at the required levels, you should monitor it closely and use a thermometer to help you keep it in check. Another way of maintaining desirable temperature levels in the grow room is by ensuring that the grow lights are not too close to the plants. Maintain the required light distance to avoid overheating and burning plant canopies.

Read next: Best Temperature and Humidity Controllers

Desirable Traits of Cannabis Seedlings

If you want healthy looking cannabis seeds, you should look out for the following traits.

Healthy seedlings, leaves, and stalks should bear a green color. If you notice that the seedlings have a purple color while the stems and stalks are a grayish color, it is an indication that the development of the roots is poor. The color changes are also an indication that the roots cannot process nutrients adequately.

healthy-cannabis-seeding
Healthy Cannabis Seedlings

You can tell the cannabis plant is healthy if the leaves are upright and parallel to the soil. Improperly formed leaves will show a trait such as discoloration, droop down, and curls. The defects are an indication that the seedling is not handling the same conditions other seedlings are thriving in well enough.

Unless you are growing your cannabis seedlings in aeroponics or deep-water culture (DWC), it is not always possible to monitor your plant’s root development easily throughout their growing cycle. However, you can tell if they are healthy if they display the appropriate height depending on their age, and the leaves have the appropriate size and set well without curling.

Visibility of the positive traits expected of the cannabis plants such as density, good health, and branching, is mostly possible during transplantation and the harvesting period.

If you notice seedlings that do not keep up with the rest in terms of healthy leaf development, height gain, robustness, and growth rate, you should dispose of them because they are defective. In some cases, you may decide to throw caution to the wind and keep the undesirable or defective seedlings in the hope that they might stay alive and germinate into healthy plants.

It is a tough decision to make, but it is not unusual for defective seedlings to turn around and surprise you with the deliverance of healthy plants and highly potent yields. However, you also have to prepare yourself if you decide to take that road because many of the defective seedlings may grow into plants. However, you have to contend with ending up with unhealthy plants prone to several diseases, provide little yields, and need lots of attention throughout their growing cycle.

Wrapping It Up

Growing cannabis is not a walk in the park, especially for those doing it for the first time. However, enough knowledge about what to expect during the growing cycle and enough practice makes cannabis growing both fun and fulfilling. Using seedlings to start your growing journey needs, the utmost care because they are delicate and susceptible to many ills.

Before putting them in the ground, the first step is to ensure that your seedlings are from a reliable and trusted seller. Buying from a reputable seller assures you of strong, resilient, and easily adaptable seeds that will grow to healthy plants and high yields. The next step is caring for the seedlings.

Do not feed them with too much water or give them too little that will end up killing them. Ensure that the lighting system you have in your grow space provides full-spectrum light to cover all the seedlings.

Monitor the temperatures carefully to prevent the crops from burning out and get a dehumidifier if the place is too humid. If you have seedlings that do not measure up, get rid of them, and leave only the strongest for better yields and fewer problems. The whole exercise may seem too challenging, but it is worth the effort.

Bestseller No. 1
Inkbird Temperature and Humidity Controller ITC-608T Pre-Wired Dual Stage Thermostat 120VAC 15A 1800W ETL Listed Mushroom Greenhouse Homebrew
1,663 Reviews on Amazon
Inkbird Temperature and Humidity Controller ITC-608T Pre-Wired Dual Stage Thermostat 120VAC 15A 1800W ETL Listed Mushroom Greenhouse Homebrew
  • 💙💙US ETL Certificate Listed. ITC-608T thermostat temperature and humidity controller is ETL listed, and rigorously tested for quality control and safety.
  • 💙💙Three in one Multifunctional Temperature and Humidity Control Mode with Dual Relay Output. ITC-608T can work as a temperature controller, a humidity controller, a temperature and humidity controller. First, only plug temperature sensor with cooling and heating equipment. Second, only plug humidity sensor with humidifier and dehumidifier equipment. Third, plug both temperature and humidity sensor with cooling/heating and humidifier/dehumidifier equipment.
  • 💙💙Supporting calibration, compressor delay and saving reset setting values. Centigrade or Fahrenheit degree display, easy to set, PV and SV dual display windows. And with compressor delay for protecting cooling device. ITC-608T can save the original setting values in case accidentally power-off.
  • 💙💙More power up to 1800W. Temperature control range is -40-212°F(-40-100℃), humidity display range is 5 -99.0%RH. Max Loading: 120V 15A 1800W. Temperature senor is waterproof while humidity sensor is not.
  • 💙💙Multifunctional usage. Temperature and humidity controller ITC-608T can be used in home brewing (refrigerator), fermenting, Greenhouse, terrarium, reptile, planting (mushroom), meat storage and cooking.
Bestseller No. 2
Inkbird ITC-308 Temperature Controller with IHC-200 Humidity Controller
967 Reviews on Amazon
Inkbird ITC-308 Temperature Controller with IHC-200 Humidity Controller
  • 【Plug n Play】no more complicated wires are needed, and the programable temperature controllers is friendly to growers, staters.
  • 【Buzzer Alarm】High and low temperature/humidity alarms support custom adjust.
  • 【Dual relay】Both controllers offer two power outlets. Plug-in heating equipment, and ventilation fan on the temp controller, and plug the humidifier and dehumidification equipment on the humidity controller.
  • 【Affordable】DIY the ventilation system for your grow tent gets more fun but costs less than getting a pre-set ventilation system.
  • 【Reliable】Inkbird is the first one to offer pre-wired temp/humidity controllers.
Bestseller No. 3
RACHING Cigar Climate Control Cabinet, 380L Cigar Humidor Cabinet for Storing&Aging, Wood Frame with Constant Temperature and Humidity System, 7 Premium Canada Cedar Trays - Piano Paint Black
4 Reviews on Amazon
RACHING Cigar Climate Control Cabinet, 380L Cigar Humidor Cabinet for Storing&Aging, Wood Frame with Constant Temperature and Humidity System, 7 Premium Canada Cedar Trays - Piano Paint Black
  • 🚬EXQUISITE WORKMANSHIP: 100% Wood frame with upscale piano black finish. Premium Canada cedar wood trays. Not only a cabinet but also a decor for your cigar room, combination of modern and classical.
  • 🚬CIGAR STORE&AGING: The cabinet has build-in humidity, fan cooling, PTC Heating & dehumidify system which contributes a constant temperature and humidity environment to keep your cigar at the best status. Perfect for store and aging your cigar.
  • 🚬EASY CONTROL: Simply set the number you want on panel, the cabinet will monitoring and keep the inside temperature&humidity smoothly. Best Temperature Range: 60-71°F (16-22°C) ; Best Humidity: 60-75% . Keep your cigar away from damp, crack.
  • 🚬NO CONDENSED WATER: 100%wood liner, better moisture absorption and moisturizing effect, and can effectively adjust the humidity inside of the cabinet. No condensed water like metal liner, nor odor like ABS/plastic liner.
  • 🚬DIMENSION: 23.6"L x 24"W x 71.7"H; Weight: 267Lb ; Capacity: 380L; Cigar Storage: 1500+ ;
Bestseller No. 4
Elitech STC-1000 TH Temperature and Humidity Controller T&H Non-WiFi Cooling Heating Switch On-Off Thermostat for Heat Pad Reptile Aquarium Homebrew Freezer -40~230°F Pre-Wired Outlets 110V 1100W 10A
372 Reviews on Amazon
Elitech STC-1000 TH Temperature and Humidity Controller T&H Non-WiFi Cooling Heating Switch On-Off Thermostat for Heat Pad Reptile Aquarium Homebrew Freezer -40~230°F Pre-Wired Outlets 110V 1100W 10A
  • 【Wide Control Range】Temperature & humidity 2 in 1 Sensor; Temperature control range 23℉~158℉, humidity control range 5%RH~99%RH. It starts cooling or heating; humidifying or dehumidifying according to configured parameters, which helps to keep a desired temperature/humidity anytime.
  • 【No Wiring】Its large LCD screen, simple 3-button, and pre-wired design making it easier for use with plug and play.
  • 【Dual Relay Output】Be able to connect two types of equipments at the same time, work1 for temperature controlling; and work 2 for humidity controlling.
  • 【Multi-functional Setting】Its functions include high or low alarms, start delay, temperature or humidity calibration, Temperature unit ℃/℉ and continuous working time for humidity.
  • 【Safe & Reliable】Comply with CE, FCC, WEEE standard and adopt fireproof ABS case for safety when in use. Flame Retardant UL94 V-0. 24/7 US Technician Support via Email and Phone.
Bestseller No. 5
AC Infinity Controller 79, Smart Outlet Controller, with Temperature, Humidity, Timer, Cycle, Schedule Controls, Wall Hang Digital Thermostat for Heat Mat, Seedling Germination, and Propagation
32 Reviews on Amazon
AC Infinity Controller 79, Smart Outlet Controller, with Temperature, Humidity, Timer, Cycle, Schedule Controls, Wall Hang Digital Thermostat for Heat Mat, Seedling Germination, and Propagation
  • A digital controller designed to equip outlet devices with smart controls for HVAC or growing applications.
  • Powers up to two outlet devices on or off and provides each with its own independent programming.
  • Programs include temperature and humidity triggers, timers, cycles, scheduling, and custom buffers.
  • Connect with our app via Bluetooth to unlock advance programs, set notifications, and view climate data.
  • Two outlets collectively support up to 1100W to control plugged-in devices together or independently.
5/5 - (3 votes)

Bowden draws from over a decade of home growing experience as well as consulting for small-scale and hobbyist-level growers. He has written hundreds of articles, thought pieces, and tutorials about growing cannabis at home

Leave a Comment