Pro-Mix BX Mycorrhizae Bale

The mycorrhizae are beneficial fungi that colonize plant roots to create a symbiotic relationship. This helps the root system absorb more water and nutrients, which typically leads to faster growth and better stress tolerance.

This mix is excellent for seed starting. Its fine, peat-based texture provides the consistent moisture and aeration that delicate seedlings need to establish their initial root systems.

PRO-MIX BX is a professional-grade growing medium that provides a stable, pH-balanced environment, but it does not contain a heavy starter fertilizer charge. You should begin a regular liquid feeding program shortly after your plants are established or once they develop their first true leaves.

The bale is compressed, so it is much denser than a standard bag of potting soil. Once you break it open and fluff it with water, it will expand to its full 3.8 cubic foot volume, which is enough to fill several large containers or a significant number of seed trays.

Yes, it is well-suited for houseplants. The inclusion of perlite and vermiculite ensures good drainage and aeration, which helps prevent the soil from becoming too compacted in indoor pots.

No, this is a soilless medium based on Canadian Sphagnum peat moss. This makes it lighter, more sterile, and more consistent than traditional garden soil, which helps reduce the risk of soil-borne diseases and pests.