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Rockwool, Rapid Rooter, Bio-Dome Plugs

wordwiz
13 years ago

I like the germination rates of the RR but at $20 for 50 of them, they are quite pricey if one is doing lots (hundreds) of plants. Someone suggested the refill sponges for Park Seed's Bio-Domes. They are similar to rapid rooter but much less expensive. 120 of them for $11. They fit into the Speedling 200-cell seedling tray and I have had excellent germination results with basil and tomatoes.

This is good because getting 3,000 seedlings to grow large enough to transplant would take up a lot of room, especially if I use 36- or even 72-cell nursery flats. These Speedling trays are about 11x22" and hold 200 plants. I can fit 15 trays in one row of my greenhouse.

Of course, the proof will be if the plants grow healthy!

Mike

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