![]() Humidity in the soil for seeds or seedlings as they grow.įor more information, check out the table below, and check out thisĪrticle from the University of California on ideal seed germination (a plastic or glass cover) to trap some heat and warm up the air and soil nearĪ cloche can be made from a plastic water bottle to retain warmth and If you are worried about a short growing season, you can also use a cloche Planting that gets plenty of sun, so that it can warm up the soil faster. To speed up this process, clear away any debris, such as leaves or grassĬlippings, from the soil surface. One option is to wait until the sun warms up the soil. If the thermometer reads a temperature that is too low, then you have some If you want to find out the soil temperature, use a Keep in mind that these temperatures refer to soil temperature, not air ![]() The ideal (optimal) temperature for pumpkin seed germination is between 85ĭegrees Fahrenheit (29.4 degrees Celsius) and 95 degrees Fahrenheit (35 degrees You can find the frost dates for your area on the Old Farmer’s Almanac Is at least 70 degrees Fahrenheit (21.1 degrees Celsius) before transplanting ![]() Weeks before the last spring frost date, and waiting until the soil temperature The Old Farmer’s Almanac suggests starting pumpkin seeds indoors 2 to 4 Plant your pumpkin seeds and transplant your established plants outside! Mold, which is another threat to your plants. If the soil is any warmer than this,Ĭombined with high humidity, high temperatures can encourage the growth of The maximum temperature for pumpkin seed germination is 105 degreesįahrenheit (40.6 degrees Celsius). Start pumpkin seeds indoors to avoid cold soil temperatures in early spring. This is nature’s way of protecting pumpkin seeds from sprouting at a time You will see low germination rates – that is, if you can get any seeds at all The minimum temperature for pumpkin seed germination is 60 degreesįahrenheit (15.6 degrees Celsius). The established pumpkin plants outdoors in the spring, after the last danger ofįrost has passed and soil temperatures are a bit warmer. One way to offset this problem is to start seeds indoors and then transplant Pumpkin plants like full sun and warmer temperatures, so they can beĭifficult to grow in colder, northern regions with short growing seasons. Many pumpkins are orange when ripe, but there are other colors such as white, yellow, or red. Miniature pumpkins like these can weigh as little as 4 ounces.
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