Hi, Joan, The temperature of the water should not be extreme at any time; warm water is not going to keep the seeds warm. The black plastic mentioned above is laid on bare ground to warm it; it is not placed on seeds. You'll have better results keeping the seed containers inside until the plants sprout. In fact, see this page for more advice on starting seeds: http://www.almanac.com/content/starting-seeds-indoors
We hope this helps.
Hi, Joan, The temperature of the water should not be extreme at any time; warm water is not going to keep the seeds warm. The black plastic mentioned above is laid on bare ground to warm it; it is not placed on seeds. You'll have better results keeping the seed containers inside until the plants sprout. In fact, see this page for more advice on starting seeds: http://www.almanac.com/content/starting-seeds-indoors
We hope this helps.