

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The MIRACLE-GRO 74978890 is an 8-quart seed starter potting mix formulated for germinating seeds and rooting cuttings. This lightweight growing medium promotes stronger root development from the earliest stage of plant propagation. Unlike general-purpose potting soils, it contains no compost or bark, which reduces the conditions that shelter fungus gnats. Weighing approximately 5.21 pounds per bag, it is easy to handle and well-suited for use in trays, small containers, and propagation setups used by nursery professionals, greenhouse growers, and experienced horticulturalists.
This potting mix is intended for indoor seed starting and cutting propagation applications. It is appropriate for use in residential and commercial greenhouse environments, propagation trays, and starter cell packs. The mix is designed to support early-stage root establishment before transplanting into a permanent growing medium. It is not intended as a long-term container mix or outdoor garden soil amendment.
Designed as a general-purpose seed starting medium compatible with standard propagation trays, plug trays, and small starter containers used in indoor germination and cutting propagation applications.
Fill seed trays or starter cells to the appropriate depth before sowing seeds or inserting cuttings. Moisten the mix thoroughly before use and maintain consistent moisture during germination without waterlogging. Do not compress the medium tightly, as adequate aeration supports early root development. Once seedlings are established, transplant into a suitable grow medium appropriate for the crop and container size.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!