Potting soil recipe for potted trees and shrubs 3 gallons compost 2.5 gallons coarse sand 3 gallons sphagnum peat moss or coir fiber 2.5 gallons composted pine bark 3 gallons perlite 2 TBSP of lime (if using peat moss) 1 cup granular, organic fertilizer (or 1 cup of the DIY container fert...
Vermiculite holds water and fertilizer in the potting mix. It also contains calcium and magnesium and has a near-neutral pH. Vermiculite comes in different grades. Medium grade is usually used for starting seeds. A course grade can be used in soil mix for older plants. Perlite Perlite is a...
Vermiculite holds water and fertilizer in the potting mix. It also contains calcium and magnesium and has a near-neutral pH. Vermiculite comes in different grades. Medium grade is usually used for starting seeds. A course grade can be used in soil mix for older plants. Perlite Perlite is a...