Beans can be difficult to germinate in Aquaponics if overnight temperatures in the greenhouse are not able to be held between 70 and 80 degrees. We found that if we use a Parkseed 40-Cell Bio Dome Seed Starter Unit and fill it with 1-inch Hydroponic grow cubes, water and a heat mat, the sprout rate for our Bush Snap Beans increased from 30% to 90% in just 7 days. Now we use these Bio Domes to germinate all of our Hydroponic warm season plants.
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