Sun Gro Black Gold Seedling Mix

Standard potting soil is often too coarse for tiny seeds, which can struggle to push through large chunks of bark or perlite. This mix features a fine, uniform texture that ensures consistent contact with the seed, promoting faster germination and more even growth.

While it is formulated specifically for germination, it is not ideal for long-term growth. Because it is lightweight and lacks the nutrient density of standard potting soil, you should transplant your seedlings into a more robust potting mix once they develop their first set of true leaves.

This mix is primarily peat-based and designed to be a gentle, neutral starting environment. It does not contain heavy fertilizers that could burn delicate new roots, so you may need to introduce a very diluted liquid fertilizer once your seedlings have established themselves.

Peat moss is excellent at holding moisture, but it can become hydrophobic if it dries out completely. To keep it hydrated, use a spray bottle to mist the surface regularly or bottom-water your trays by placing them in a shallow pan of water until the mix feels damp to the touch.

Yes, its texture is designed to hold moisture without becoming waterlogged, which is the primary cause of damping-off. By maintaining good drainage and using this fine-textured medium, you create an environment that is less hospitable to the fungi that cause seedlings to rot.