Hortifiber Rockwool® Propagation Slabs and TrayAfter plants have outgrown propagation blocks, they can be placed on a Rockwool® slab for further growth. Slabs are covered with a white plastic sleeve, which promotes strong roots and inhibits algae growth. Hortifiber Rockwool® slabs perform best in areas that provide proper drainage. They are very popular in tomato, cucumber and pepper production. The leach tray is rigid plastic. Hortifiber Rockwool® is a registered trademark of Thermafiber, Inc. |
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