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Sold byPark Seed

Bio Dome Sponge 60 Cell Refills

About This Item

Extend the life of your Bio Planting Block with these economical and reusable Bio Sponges. Perfect for starting new crops, they make it easy to grow healthy, vigorous seedlings season after season. These replacement sponges are designed to fit perfectly into Park’s Original 60-cell Bio Dome. For more information, explore Park’s Bio Dome Seed Starter System. Grow like a pro with Bio Sponges!

Tools & Accessories
Seed Starting
Gardening Essentials

To get started, disinfect your Planting Block using warm water with a splash of bleach, and soak the Bio Sponges in warm water for a few minutes. Once expanded, the sponges reveal a pre-drilled planting hole—just slip one seed into the hole, place the sponge seed-side-up in a cell of the Planting Block, and you’re ready to grow your next bumper crop of strong, quick-growing plants.

Bio Sponges are made from a blend of coconut coir, peat moss, and bio char, now enriched with oilseed extract for an added boost of nutrition. They ensure your seedlings get the best possible start, delivering exceptional results every time.

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