Park Seed 80 Pack Refill Sponges for The 40-Cell Planting Block

Perfect product!!

I have the Park seed bio dome. The sponges work great to start seedlings. The sponges make it easy to care for young seedlings and they make transplanting to a pot a breeze. The roots don’t get disturbed when they are transplanted since you plant the entire sponge. These sponges fit my bio dome perfectly.

I have used the bio dome for years and it's the best way to get your seeds to germinate. Park seed has always been the best. I have some seeds that were 20 years old and they germinated. Can't wait for spring

Easy to get the refills on Amazon and use Prime. I have used the Parks bio domes for years and they are the best for starting seeds.

If you have the tray and Styrofoam part, then these are perfect and cheaper than Park. These are the same product Park sells.

starting flowers inside.

I received my pack of Park Seed refill sponges. I've followed the instructions for soaking. They are supposed to expand considerably. They don't. In fact I see no expansion at all. As is they are too small ( narrow) for the cells in my seeding tray