Note: Don’t worry, there’ll be examples of good and bad soil in just a bit!
Although that list looks vague and complicated at the same time, the requirements you want to meet are actually pretty simple; let me break it down!
Signs of Good Cannabis Soil
Good Cannabis Soil
The plant is growing in organic, composted “super soil” which has enough amendments to last your entire grow, so the only thing you do is add water!
Texture, Drainage & Water Retention
However, when growing with Super Soil, it’s a good idea to avoid watering too much at a time, as extra runoff waterwill drain away some of the nutrinets. Try to give just enough water to saturate the soil with very little extra coming out the bottom. Since you won’t be adding more nutrients through the grow, you want to conserve what’s in the soil!
If you’ve had good luck with your outdoor soil when growing plants in the yard and garden, you may question why you can’t use that same soil in a pot. Unfortunately, container plants have different requirements than do garden plants. According to “Fine Gardening” magazine, garden soil doesn’t hold enough air, water and nutrients to sustain potted plants. Garden soil is more heavy and dense than potting soil mixes and may become too compacted to create a hospitable environment for container plants. It may also be depleted of essential nutrients and fail to hold enough water — or hold too much water — for your plants’ needs.
When you start an indoor container garden, you may be tempted to save bucks and a trip to the store by using garden soil from the backyard to fill your pots. Unfortunately, no matter how fertile and rich the soil, it isn’t suitable for use with indoor plants. Instead of using soil that’s already on hand, take the time to select the proper potting soil mix for the plants you’re going to grow, so you can give them a healthy head start.
Garden Soil Drawbacks
The University of Illinois Extension advises that container plants require soil that provides proper aeration and drainage while still retaining enough moisture to sustain the plants. They also require a careful balance of nutrients to feed the plants as they grow. By choosing the proper soil mix, you eliminate unnecessary problems, such as the inadvertent introduction of weed seeds, pests and diseases to indoor plants, which can occur when you use garden soil. Commercial potting soils are specifically formulated for the needs of container plants, and the mix can be tailored to the type of plant you’re growing.
Soil Mix Benefits
Oftentimes, potting soil mixes do not contain any soil at all and are known as soil-less mixes. Artificial media, another name for soil-less mixes, are typically a combination of several ingredients suited to helping indoor plants thrive. Perlite and vermiculite add aeration to the mix, peat moss and sphagnum moss aid in moisture retention, and sawdust and shredded bark provide a soft bed for the roots and stem of the plants. Plants in potting mix usually require supplementary feeding with fertilizers formulated for potted plants.