Sold by Urban Leaf and ships from Amazon Fulfillment. For use with Grow Baskets or Seed Starter Systems in all Aero Garden models. Aero Garden Grow Sponges are made from pure Canadian Sphagnum Peat and provide soil free, no mess, indoor growing all year round. AeroGarden Compatible Grow Sponges (50 pack) $ 15.00 AeroGardens are a great way to grow at home. If you’re looking for a budget and eco-friendly replacement for your AeroGarden pods, try out our AeroGarden Compatible Grow Sponges which go really well with our dwarf seed varieties. Yet, existing sponge options but existing sponge … Use them with Aero Garden Grow Baskets or Seed Starter Systems for reliable germination and healthy root development. Aerogarden seed pod caps. This item: Grow Sponges for use with AeroGarden (50 Pack) | Compatible with AeroGarden Seed Pods Made by Urban… $13.95 In Stock. Preparing all the stuff that you will need in the process. Aluminum trays … Includes 50 Aero Garden Grow Sponges. And if all this mold-talk has got you second-guessing – don’t worry, we won’t leave your plants out to rot!