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Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
With the Hydrofarm 20 x 3 Inch 7
Pargro is the leader among affordable horticultural rockwool
• Essential elements are NOT derived from harmful chemicals such as a urea and ammonia nitrate
additional shipping fee will probably apply (due to light weight but large volume)
*Special orders: contact us for current pricing
ROCKWOOL Mini Blocks 1.5" Starter 45 MM4040 pH With the Hydrofarm 20 xStarter MINI BLOCKS can sit in a tray (flat) without support for easy starting of seeds and cuttings. They are individually wrapped to minimize algae growth. For best results put them on the flat side of the GRO SMART Tray to ensure good airflow around the cubes. Remove wrapping and transplant into any loose media such as GROW CUBES or GROW CHUNKS, or leave wrapping on and set on top of a larger GRO BLOCK. These cubes are popular for production of
