Dill's Atlantic Giant
Cucurbita maxima — bred by Howard Dill, Nova Scotia — 300–1,200+ kg
Dill's Atlantic Giant is the variety behind virtually every giant pumpkin world record since the 1980s. Developed by Nova Scotia farmer Howard Dill from earlier giant lines, its genetics have been refined by competitive growers worldwide for over four decades. Deep orange, heavily ribbed, and genuinely capable of exceeding 1,000 kg with dedicated feeding, vine training, and a full season of care.
⚖️ Weight Comparison
🌱 How to Grow Dill's Atlantic Giant
8+ hours of direct sun daily, in the most open, unobstructed spot you have. Giant pumpkins are heavy feeders that need maximum photosynthesis to fuel their growth rate.
Wait until soil reaches 21°C+ before transplanting — Atlantic Giants hate cold, wet soil. Black plastic mulch or a cold frame helps warm beds 2–3 weeks earlier in cooler climates.
2.5–5 cm of water per week early on, rising to daily deep watering once the fruit sets and starts its rapid-growth phase. Consistency matters more than volume — avoid dry-then-flood cycles.
One plant per 20–40 m². Train the main vine in a straight line and bury side-vine nodes every 60–90 cm to encourage extra rooting, which feeds the developing fruit.
Heavy nitrogen early for vine and leaf growth, switching to phosphorus and potassium once a fruit is set. Competitive growers feed weekly with compost tea, fish emulsion, and balanced granular fertiliser.
Choose one fruit per plant by day 15–20 after pollination — pick the one with the best shape and earliest, strongest set, and remove all others so the plant channels everything into it.
🩺 Common Problems
Cause: Calcium deficiency, often triggered by inconsistent watering rather than a true soil shortage
Fix: Water evenly, mulch to retain moisture, and apply a calcium supplement (gypsum or foliar calcium spray) as a precaution
Cause: Squash vine borer larvae tunnel into the main stem, wilting the vine beyond that point
Fix: Bury vine nodes to encourage secondary roots, wrap the base of the main stem, and inspect for entry holes weekly
Cause: Humid conditions and dense canopy late in the season
Fix: Improve airflow by removing excess leaves, avoid overhead watering, and apply a sulphur or potassium bicarbonate spray at first sign
Cause: Inconsistent watering causing rapid, uneven expansion during peak growth
Fix: Keep soil moisture even all season, and reduce watering slightly in the final 2–3 weeks before harvest to firm up the skin
Cause: Cold soil or transplanting too early
Fix: Wait for soil to reach 21°C+, use cloches or cold frames to protect young plants, and avoid rushing the transplant date
❓ Common Questions
How big can Dill's Atlantic Giant pumpkins get?
The world record is over 1,247 kg (2023). A dedicated home grower can realistically reach 200–500 kg with good genetics, soil, and season-long feeding.
How long does it take to grow?
120–150 days from seed to harvest. Growth accelerates dramatically once fruit sets — a healthy pumpkin can gain 15–20 kg per day at its peak.
How much space do I need?
Plan for 20–40 square metres per plant. The main vine and side vines are trained outward to maximise leaf area feeding the fruit.
Why did my pumpkin split?
Splitting is almost always caused by inconsistent watering. Keep soil moisture even throughout the season, especially during peak growth.
