What is cannabis growing soil?
Cannabis soil is a substrate specially formulated to meet the needs of this plant at all stages. Unlike universal soils, these substrates have a light, porous structure rich in organic matter, which promotes root development, water balance, and efficient nutrition.
They are usually composed of mixtures of blond and black peat, coconut, perlite, worm humus, mycorrhizal, and guano, depending on the desired nutrient level.
Why is it so important to choose a good substrate?
Good soil improves water retention without overwatering, facilitates root oxygenation, and provides a stable nutritional base. Using a cannabis-specific substrate results in:
- Greater vigor and growth.
- Reduction of shortages or blockages.
- More abundant and aromatic blooms.
- Lower risk of root diseases.
It also allows for more controlled feeding, whether you grow organically or minerally.
What types of soil will you find in this category?
- Light soil or light substrate: low in nutrients, ideal for seedlings, cuttings, or for use with liquid fertilizers from the start. Widely used by advanced growers who prefer to control nutrition.
- All-Mix or enriched soil: Rich in nutrients, ideal for growth and the first few weeks of flowering without the need for fertilizer. Perfect for beginners or organic growers.
- Soil with mycorrhizae and beneficial bacteria: improves the symbiosis between roots and substrate, promoting nutrient absorption.
Which products stand out?
- Biobizz Light Mix and All Mix: two reliable soil-growing classics with organic ingredients.
- Canna Terra Professional Plus: premium quality, highly aerated and with excellent water retention.
- Top Crop Complete Mix: balanced mix with guano and humus, ready to use from day one.
Who should use these substrates?
Any grower looking for simplicity, performance, and stability, whether indoors or outdoors. They're ideal for both beginners, who want a ready-to-use substrate, and advanced users, who combine lightweight soils with customized fertilization programs.
Frequently Asked Questions about cannabis soil
How long do the nutrients in an All-Mix soil last?
It depends on the size of the pot and the size of the plant, but it generally supplies nutrients for 3 to 4 weeks, after which it is recommended to start fertilizing.
Can soil from a previous crop be reused?
Yes, but it's necessary to revitalize the substrate: remove old roots, aerate, correct pH, and add fresh organic matter or beneficial microorganisms. There are specific regeneration kits for this.
