PU662A - Dill's Atlantic Giant
C. maxima. Dill's Atlantic Giant pumpkin seeds hold the world record for giant pumpkins, and produce the largest fruit in the plant kingdom. Bred in eastern Canada by Howard Dill, Atlantic Giant can reach 1,000 lbs or more! The record is 1,725 lbs - see if you can break it! The really big ones look like big orange Volkswagen Beetles. These giants grow on very large plants, with vines up to 50' long, so they require lots of room, full sun, and fertile soil to produce the giant pumpkins. For the largest size, prepare a growing area 20 x 20 feet, and dig down three feet. Fill this with soil mixed heavily with fully composted manure and glacial rock dust. Apply a balanced organic fertilizer at transplant time, and feed the plant every two weeks with liquid kelp or fish fertilizer. Once a fruit begins to grow, remove all female flowers that follow so that there is only one fruit per plant. Consider placing a tarp or board beneath the fruit as it develops in order to shift it once it is fully grown.
Matures in 110 days (Open-pollinated seeds)
- World record for giant pumpkins
- Vines up to 50' long
- Can reach 1000lbs or more
- Open-pollinated seeds
- Matures in 110 days
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How To Grow
The thick walls of some pumpkins are wonderful for cooking and store well all winter. Pumpkins for carving are thinner walled so kids can decorate them easily. Follow along with this handy How to Grow Pumpkins from seed Guide and have some Halloween fun this fall!
Cucurbita maxima & C. pepo.
Easy, but these big plants require lots of room.
Season & Zone
Season: Warm season
Exposure: Full sun
Zone: Not winter hardy. Compare the days to maturity to the length of a typical summer in your area. Days to maturity are from transplant date.
Direct sow or transplant in late May or early June when soil warms up. For transplants, start seeds indoors during the first two weeks of May. Make sure plants go into the ground no later than June 15th. Optimal soil temperature for germination: 25-35°C (68-95°F). Seeds should sprout in 7-14 days.
Sow seeds 2cm (1″) deep. Sow 3 seeds in each spot you want a plant to grow and thin to the strongest plant. Space plants at a minimum of 90-120cm (36-48″) apart in rows 120-180cm (48-72″) apart. If starting transplants indoors, consider using the 12-cell plug inserts.
Ideal pH: 6.0-6.8. These big plants need lots of food! Choose a sunny spot with fertile, well-draining soil. Dig in a generous quantity of finished compost and/or composted manure. Dig in 1 cup of complete organic fertilizer under each plant. All pumpkins grow male flowers first, then the female flowers are produced. The female flowers have tiny fruits at the base of the petals and require pollination by bees, mostly. Incomplete pollination is common at the beginning of the season, and results in small fruits that are misshapen at the flower end. Discard these damaged fruits before they rot.
For the largest pumpkins, feed weekly throughout the growing season with fish or kelp based fertilizer. Keep the huge plants well watered, particularly in hot weather. Always water the soil, and avoid any form of overhead watering other than rain. Fruit will grow larger if you keep only one fruit per vine. As the fruit develops, try to gently encourage it to grow at a 90° angle to the vine itself. The largest pumpkin varieties will grow on their sides.
Like other winter squash, pumpkins are mature when they have coloured up well and their stems are crisp. For the best sugar content, cut the stem about 4cm (2″) or so from the body of the fruit. If the weather is dry, allow the pumpkins to cure in the field for 10 days, or in a warm room for 4-5 days. Bring pumpkins in under cover before rain.
In optimal conditions at least 80% of seeds will germinate. Usual seed life: 2 years. Per 100′ row: 60 seeds, per acre: 6.5M seeds.
Diseases & Pests
Powdery Mildew: An airborne fungal disease that causes white spots on the leaves at the end of the season. Several home-sprays are said to be somewhat effective. Spray any of the following at 7-10 day intervals. 1tsp baking soda and 1 quart of water with a squirt of dish soap, or 1 part milk to 9 parts of water. You can add a little Kelpman to the mix. Resistant varieties get the mildew just a few days later than the other varieties.