I hope you have had some success in getting your seeds to sprout!
Once the seeds have sprouted, remove the cover. When the seedlings are young, you may want to re-cover them for a few hours a day to keep them from drying out.
Over many years of growing my own plants, one thing that really helped me out was using a turkey baster to water the young seedlings. I found I had better control over the amount of water I gave them, as opposed to using a watering can. I often would use a spray bottle filled with water, however, in many instances, the young seedlings would be bowled over with the spray. Always use warm water, NOT cool.
This is also the time to start fertilizing. Use a water soluble fertilizer such as a 10-52-10. Add fertilizer to tepid water, as directed, and fertilize about every third watering. A high middle number (phosphorous) will encourage a good root system; a high first number (nitrogen) will encourage too much leaf growth and the third number (potassium) will allow for better uptake of food and water from the soil and is good for the over-all health of the plant. At this point, don’t over-fertilize and don’t over-water.
Put the seedlings as close to your light source as possible to prevent the seedlings from “stretching”. If you are using Fluorescent lights, keep your lights on for about 15 – 16 hours a day. If you have them in a sunny spot in the house, make sure they don’t dry out from the heat of the sun. You will also have to turn them every few days to encourage the stems to grow straight and prevent stretching.
Once the seedlings appear to be over-crowded, or have developed their second set of leaves, it is time to separate them and transplant them into little containers of their own, (about 1 ½” – 2”) large. Pick the plants up by the leaves, not the stem or roots when you are transplanting. Make sure the containers you are using have holes for good drainage. Peat pots are excellent ones to use as they allow the water to pass through and you won’t have to remove your plant when planting out into the soil as the peat pot will break down in the moist soil. If you transplant seedlings into a container that is too large, you won’t see much new top-growth, however, the plant will be busy growing roots to fill the container. At this point, you may want to switch to an all-purpose fertilizer (20-20-20). I like using a very weak strength of fertilizer with every watering.
Almost all seedlings will grow into better, bushier plants if you pinch off their top growth after they’ve grown their second or third set of leaves. Never pinch tuberous begonia or celosia. As the seedlings grow, you may want to transplant them again into a container that is a little larger. You may also want to add some soil to your soil-less mix to train the roots to work their way through soil. They will have a better time once they are finally planted into the garden. You will then have some healthy, large plants to transplant outside once the weather warms (usually around May 24th).
As your seedlings grow, use a fan on them for a few hours a day to stress them a little. Also, allow them to dry out a bit by missing a watering and a fertilizing once a week and put them in a cool spot at night. Your plants will be a lot stronger and more able to survive better on their own outside.
Always harden off your plants before planting them outside by gradually getting them used to the conditions in which they are going to grow. A plant that has been pampered with a lot of water, fertilizer heat and humidity will grow lush, green, tender foliage but will be the first to go into shock and keel over in our Manitoba sun and wind. Always put your tender plants into a shady, sheltered spot for the first couple of days and then gradually introduce them out into the wind and sun. If your plants become withered or start showing signs of too much sun (white leaves), give them a good watering and put them back into the sheltered shade. Your plants will soon become used to the conditions and be less likely to succumb to the harsh conditions of the outside. A good rule to follow when planting is to plant your sun plants out first and then your shade plants. Usually the shade plants are more tender and planting out too early (impatiens or begonia) will set them back or you may lose them if the nights dip down to below 10 degrees.
Many plants such as petunias, verbena, alyssum, dianthus, foxglove (foxy), snapdragons, gazanias, centaurea (batchelor button), rudbeckia (gloriosa daisy), sweet peas, chrysanthemum, cosmos and pansies can take a little cold and frost, but, be prepared to cover them if the risk of frost occurs soon after planting out. Use newspaper, cardboard or sheets to cover. Never use plastic as this draws the cold.
About a week after your plants have been planted outside, give them a good fertilizing (like a Miracle Gro 15-30-15 for all your blooming plants and an all-purpost 20-20-20) for all your leafy plants. Continue to do so, according to directions, throughout the summer and you will have strong, healthy plants right through the season.
Stay tuned for some more planting tips and tricks!
Burying a weed seed too far into the soil can negatively impact its growth. The recommended depth of the hole is 2 to 2.5 centimeters. It is the best length because seedlings have roots that are 1.5 to 2.5 centimeters long. A couple of centimeters ensures they have enough space.
Some growers use the damp paper towel method for the germination process. Sometimes, the newly-formed root of the seed can get stuck to the paper towel. The first instinct is to pull it loose carefully, but the action could potentially damage the plant. Instead, spray it with some water to encourage the root to let go of the paper towel.
Once you have everything you need, you can begin the process of planting your weed seeds.
What Soil to Plant Weed Seeds In?
The best choice of soil for marijuana seeds is a light mix. The light mix does not have a high concentration of nutrients, which can be detrimental to a seedling’s health. Young plants do not need as many nutrients as mature ones.
Some seeds may be tricky to plant and grow, but you do not need much regarding cannabis seeds. You will notice that many of the tools are already in your home. If you need to get any additional items, you can find them in a regular store or garden center. The list of equipment includes:
Try not to cover the pots with plastic or create a humidity dome over them. Air needs to pass through easily, and a buildup of humidity may damage the plant. Besides avoiding the wrong soil, make sure it is not too wet or too dry. Whenever you water the seedling, make sure it does not have the wrong pH level.
Now that you have planted your weed seed, you are well on your way to growing a beautiful plant. When the time is right, you may want to transfer it outside. As stated previously, you will want to wait two weeks for the cannabis to become strong enough to withstand the elements.
Cold weather plants like broccoli, cauliflower, carrots, radish, parsley, leafy greens (like lettuce) and others that can handle light frost can be planted as early as 2-4 weeks before your average last frost date.
Giving your seedlings 12-14 hours of light a day is ideal, and using an outlet timer makes it a snap.
Plantable pots are a great option, and they make planting seedlings into the ground later on super easy.
How long does it take for seedlings to grow true leaves?
In this section, I will answer the most commonly asked questions about growing seedlings. If after reading this guide and these FAQs you still can’t find the answer to your question, then ask it in the comments below.
Of course you can always put them into reusable plastic pots if you have them on hand, to save yourself some cash.
Healthy seedlings growing indoors
Once the lid is off, I like to use an oscillating fan to provide additional ventilation, and help to strengthen them.