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best seedling mix for marijuana seed

DE is composed of many minerals such as magnesium, silicon, calcium, sodium, iron, and other trace minerals: titanium, boron, manganese, copper, and zirconium. DE can also help to eliminate any harmful bacteria or toxins from attacking your seeds and plants.

However, in its favor, the potting mix contains fertilizer, so from seed to plant, the potting mix will feed your flowers or veggies the nutrients they need.


The coir fiber comes in a 10lbs block and when you mix it with water it expands to 17-gallons of potting mix, so a little bit goes a long way. It can be used for a wide range of gardening purposes: seed germination, hydroponics, cultivating mushrooms, worm beds, and landscaping corrosion control.

Some gardeners may choose to make their own mix, but sterilization will make sure that your seed grows into a strong and healthy plant.

Organic food or products are rising in popularity. Many people are going “green” and they want their food to be free from harmful chemical additives, synthetic fertilizers, and insecticides. Environmentally friendly products are an important choice as well.

Although the nutrients themselves aren’t altered, they are added in specific amounts that promote healthy growth for cannabis plants. Without these pre-made soil mixes, cultivators would be left to compose their own.

Coast of Maine is a boutique soil mix brand. Their Platinum Grower’s Mix is intended for growers that don’t want to spend additional money on pH monitors and associated products.

Coast of Maine – Platinum Grower’s Mix, Super Soil

You may question this idea at first, but fungi (mycorrhizae) and bacteria play an integral role in breaking down nutrients for your prized cannabis plants.

A single bag will not fill an entire 5-gallon pot, which makes this an expensive product if you’re growing more than one cannabis plant. Although the instructions recommend cutting this product with a standard potting mix, it won’t last very long.

If you choose a stand-alone potting soil product, then it might not be suitable for seedlings due to the overall strength. If you decide to go with a milder soil mix, then you’ll need to purchase additional nutrients.