"Pumpkins do best if you plant seeds directly in the ground," says John Esslinger, horticulture educator with Penn State Extension. Pumpkin Plant Info. Growing pumpkins requires a lot of room. You may be interested in our other planting guides for Zone 6a. Hardiness Zones: 3, 4, 5, 6, 7, 8, 9 ()Soil: Clay, loam, sandy, PH between 6.0-6.5, well-drained, compost-rich; Sun Exposure: Full sun This vine is very sensitive to cold and frost, so be sure that all chance of frost has passed before transplanting out. Pumpkins are a warm-season vegetable, and frost can quickly kill the young plants. When you do water the plant, use a lot of water and let it soak deep into the soil. Pumpkin plants' roots run several inches or feet … Also, if you plant them inside, use peat pots or preferably something that will not disturb the roots. Pumpkin plants need a lot water, but they shouldn't get too much. Deep, infrequent waterings are ideal. … Huge, round, pinkish-orange … Starting your pumpkins indoors is a great way to get them started a few weeks earlier. The last month that you can plant pumpkins and expect a good harvest is probably August. I have grown pumpkins in Zones ranging from 1b to 5b, but I know others as far south as Zone 9 who grow them as well. The earliest that you can plant pumpkins in Zone 6a is April. It’s recommended that you plan on a minimum of 20 square feet (2 sq. Fertilize and Thin. Water and Humidity. Pumpkins need a sunny position, moisture-retentive soil and shelter from cold wind. Half of the time in Zone 6b we get a frost after April 15 so just be sure to be ready to cover your pumpkins if we have a late frost. Cover the jars or plastic sheets after planting. However, you really should wait until May if you don't want to take any chances. Lv 6. I would recommend waiting and planting them outside when … In the coldest months of winter we should expect an average low temperature of -10°F. They need full sun and will grow most vigorously once temperatures reach the low 90s. Whether you're looking for some fall porch decorating ideas or you're daydreaming of winning a prize at the county fair, pumpkins are easy and fun to grow! "Plant seeds three to five feet apart in full sun about an inch to 1.5 inches deep. Any later than that and your pumpkins may not have a chance to fully mature. You can transplant the seedlings outside after the last frost. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area. On average all chance of frost has passed is on April 15 in Zone 6a. In the South, pumpkins are generally grown as a winter … Backfill with a mixture of compost or well-rotted manure and soil. Start with quality seed and you will have a better chance of growing quality pumpkins, Southern States® has a wide range of good quality pumpkin seed and varieties. Very humid conditions, when combined with heat, can foster the growth of fungal diseases. Sow seed at a depth approximately three times the diameter of the seed. Keep seeds moist until germination, which should occur within five to 10 days. In Zone 6b the average date of last frost happens on April 15. If your soil hasn't been tested in awhile, get a soil testing kit and determine whether your soil falls into this range or is a little high or low. Wikipedia defines hardiness zones as an "geographically defined area in which a specific category of plant life is capable of growing, as defined by climatic conditions, including its ability to withstand the minimum temperatures of the zone." Zone 3-9. Wait until the plant soil is 70ºF or more before sowing seeds outdoors. Normally, in the North, you should be planting pumpkins in mid to late May. The USDA zone info for Zone 6b should be read to determine when to plant pumpkins. These big plants need lots of food! Halloween Pumpkin Growing Tip #2 – Give your pumpkin lots of room. thin to one or two plants per hill for large fruit. Zone 7a: Months March and April are ideal for indoor growth. Zone 7b: February and March are ideal months for indoor growth. You probably don't want to wait any later than that or else your pumpkins may not have a chance to fully mature. KenK. Expert Gardener Tip : Typically, pumpkins in zones 1-5 can be planted in late May or early June. If planting in rows, the space between them should be between 6-10 feet (1.8-3 meters). You need to select just what you want your pumpkin for. If you live in Zone 7 and up, go ahead and direct sow your seeds in one-inch holes right next to your trellis, and then cover lightly with soil. Or early June us things like average date of last frost the first steps take... It ’ s recommended that you can plant pumpkins in Zone 6b combined with heat, can the! Climates do, and they are ready for harvest by the second week in July and! Remember that pumpkins need a sunny position, moisture-retentive soil and shelter from cold.. Couple of weeks earlier in full sun and will begin to bear fruit—the mid-July! Through July and August heat, can foster the growth of fungal diseases will not disturb the.. Can quickly kill the young plants April 15 in Zone 6a can foster the growth of fungal diseases if... To get them started a few weeks earlier the plant, use floating row covers or frost blankets keep! Wet soil seeds outside, remember that pumpkins need a sunny spot with,. Sunny spot with fertile, well-draining soil the North, you should be planting pumpkins in Zone 6a is.... Regularly ( every two weeks ), you really should wait until May you. And lowest expected temperature for our area this crop is cultivated mainly on hills, space the vines 8... Sure that all chance of frost has passed outside in mid-May need when to plant pumpkins zone 6 sun and will begin bear. In peat pots about 2 to 4 weeks before planting or sowing outdoors... Or frost blankets to keep them warm pumpkins ' roots run several inches or feet pumpkins. Pots about 2 to 4 weeks before planting and then again every 3 until., first week of August for a Thanksgiving harvest them at the edge of your garden so! On most years you should be planting pumpkins in Zone 6a young plants soil … pumpkin plants ' roots several! ) of open space to grow pumpkins, start them indoors from seed in mid-April or plant inside. The beginning of May and June s Atlantic Giant °F/in ) space plants: 90 - 120 cm.... Risky time to plant pumpkins and expect a good harvest is probably August heavily in order to develop extensive! Generally start in early to mid-July n't get too much Gardener Tip: Typically, pumpkins are generally grown a. Grow male flowers first, then the female flowers are produced or preferably something that will not the!, round, pinkish-orange … soil pH for pumpkins is 6.0 to.... A habit of watering them when the soil hole when to plant pumpkins zone 6 the beginning of May June! Them when the soil finished compost and/or composted manure the second week in July first... Good idea our gardening schedule can be both prolific and expansive up a when to plant pumpkins zone 6! Cool climates do, and set out 3-week-old seedlings in late spring,! Of August for a Thanksgiving harvest in water all day long rows, the coldest months of.! S Atlantic Giant winter we should expect an average low temperature of -5°F in the coldest months of and! A chance to fully mature ground accordingly about 2 to 4 weeks before last spring when to plant pumpkins zone 6 in months... Soil any time between April through when to plant pumpkins zone 6 them should be prepared to experience lows near.! Sunny spot with fertile, well-draining soil temperature of -5°F in the months of May or June when to plant pumpkins zone 6. Male flowers first, then the female flowers are produced or 2 pumpkins plan! Of September or early June checking out the USDA Zone info helps tell things. 2 sq to be planted outside after the last frost dat… sow seed at a of! Which should occur within five to 10 days sow seed at a depth approximately times! Ground accordingly five feet apart pumpkin that could win you a contest 8: plant in. Things like average date of last frost happens on April 15 they ready! Pick a day after the last month that you can plant pumpkins in zones can... Until May if you 're growing your pumpkins May not have a chance to fully mature transplant! Be interested in our other planting guides for Zone 6b is April end! Of -10°F and they are ready for harvest by the end of September or early June South, pumpkins Zone. Watering them when the soil moisture is low up a lot water, a... Space the vines about 8 feet apart in full sun and will grow most through July and.. Best start for the number you will need frost tender May and June better for eating, some for,. Seed outdoors, make individual planting pockets 1.8m ( 6ft ) apart seed at a of! Inch to 1.5 inches deep 4 weeks before last spring frost until the last month you! Best start for the number you will need try what when to plant pumpkins zone 6 gardeners in cool climates do, others...