Search Results Web results Best Temperatures for Seed Germination
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Answer:
Most seeds germinate when the soil temperature is between 68(and 86(F. Once germination occurs, the optimum growing temperature for theseedling is about 10(F cooler than the optimum germination temperature. Moisture is critical for germinating seeds. They like a moist but not soggy environment.
Explanation:
Most seeds will germinate over quite a wide range of soil temperatures but the speed of germination will vary. Too cold and they’ll be very slow to sprout and too hot will also reduce the speed of germination. Far too cold or hot and they’ll just fail. Academic research carried out in the USA has charted these temperature ranges for a number of vegetables. Interestingly the ideal temperature for germination is often far higher than you might expect. In some cases the germination temperature is higher than is ideal for growing.
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