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Broad Compatibility Once soaked, the grow sponges expand to 2.56 inches in height and 0.9 inches in diameter, making them compatible with most hydroponic growing systems on the market. Whether using seed starter pods with grow baskets or specialized seed starter systems, you can ensure reliable germination and strong root development. These hydroponic pods also work well with seedling trays and potted plants, suitable for indoor gardens or outdoor planting.

Superior Growing Medium Our grow sponges are crafted from 100% biochar cotton, known for its enhanced fertility, which supports robust plant growth. Compared to conventional seedling soil, these grow sponges maintain a balanced pH and offer excellent water absorption and moisture retention. This provides the ideal environment for seeds to germinate and roots to establish, while ensuring a mess-free, soil-free indoor growing experience throughout the year.

Optimized for Growth Each seed pod features a small hole at the top to keep seeds securely in place, preventing them from sinking into the water. The seed starter kit are designed with small grooves around the sides to promote water circulation and maintain optimal humidity levels, ensuring seeds receive the moisture they need for successful germination. These grow sponges are easy to replace—simply remove the old one and insert the new sponge after soaking it for 3-5 minutes.

Value-Packed Kit This set includes 80 replacement grow sponges, providing you with ample supplies to start multiple seeds at once, saving you time and effort. (Note Seeds are not included in this kit.) The dry sponges are easy to store, ensuring they remain in top condition, ready to support your plants’ growth without any concerns over quality issues.

Versatile Application These grow sponges enable you to cultivate a wide variety of plants in your hydroponic indoor garden, regardless of season or location. Grow strawberries, tomatoes, basil, mint, herbs, flowers, lettuce, and more with ease. This seed pod kit also makes an excellent gift for gardening enthusiasts, offering a simple and effective way to grow vegetables, small plants, flowers, and more.