Kids Prepping Growing Medium

How to Prepare Your Growing Medium
Using a ruler or measuring tape, measure the diameter of your growing medium pellet to determine pellet size. Note: Sizes are approximations & may vary slightly.
Place the pellet in a large bowl & add water 1 tbsp at a time until the growing medium is light & fluffy, not soggy. Approximations below. Note: Many kits contain more than 1 pellet. Add the amount listed per pellet.
Allow the pellet to fully expand as it absorbs the water. Using a fork, fluff the growing medium in the bowl until only soft growing medium remains. It should be moist, but not soggy.
Oops, too much water?
If your growing medium is soggy, too much water has been added. Allow the growing medium to dry some by placing it in the direct sun or by emptying the mixture onto a cloth & allowing it to absorb some of the water.
If Planting Outdoors
Determine your growing zone by visiting and entering your zip code.
Using the table below, determine your last frost date.
1 June 1-30
2 May 16-31
3 May 1-15
4 April 16-30
5 April 1-15
6 Mar 16-30
7 Mar 1-15
8 Feb 1-28
9 Jan 1-30
10 None
Most seedlings can be started indoors 4-6 weeks before the Last Frost Date. If starting outdoors, plant after the Last Frost Date. Also, do not move growing plants outside until after Last Frost Date.
How to Plant
Place most of the moist growing medium into your container, leaving only a small amount to cover the seeds.
Place seeds approximately 1" apart on top of the growing medium. Lightly cover them with the extra growing medium you set aside. Be sure that the seeds are no more than 1/4" from the surface for best results.
If starting indoors, place the container by a sunny window or under a grow light.
After planting, water your seeds regularly. Keep them moist, but not soaking wet. A spray bottle is a good solution to avoid over-watering. Do not let growing medium dry out.
Expert Tip
For better moisture control and to stimulate germination, cover your container with plastic wrap until sprouts appear.
Germination time depends on seed variety. If more than 1 seedling sprouts, they will need to be thinned out.
Did you know?
The first leaves to emerge are called the Cotyledons or “Seed Leaves”. These leaves are a part of the seed embyro and support early growth. The secondary leaves are called the “True Leaves”. These leaves will look more like the mature plant foliage.

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