Material: Rockwool. Rockwool Soilless Grow Cubes × 50 / 100 / 200 / 300 pcs. Suitable for flowers, herbs, vegetables, succulents, and more — perfect for both planting and transplanting. Achieve faster and healthier plant growth with these high-performanceRockwool growing blocks, engineered specifically forhydroponic systems, seed starting, and soilless gardening.
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