How to Grow Pumpkin Howden
Pumpkin Howden
Cucurbita pepo
vegetableHowden is a classic, large pumpkin variety prized for its ideal balance of size, shape, and carving suitability. Known for its deep orange color, smooth skin, and sturdy handle, it's the most popular carving pumpkin in North America. This vigorous vining plant produces 8-12 pound fruits that mature reliably and store well.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 3-8; thrives in warm-season gardens with 75-90+ day growing periods
Sign up to see your zone highlighted.
Growth Stages
Germination & Seedling
10-14 daysSeed sprouts and produces 2 cotyledons (seed leaves) within 7-10 days, followed by true leaves. Seedlings are tender and susceptible to damping-off.
Keep soil consistently moist but not waterlogged. Provide bright light and warm temperatures (70-80°F). Direct sow or start indoors 3-4 weeks before transplanting.
Vegetative Growth
4-6 weeksVigorous vine development with large lobed leaves. Plant establishes strong root system and spreads across garden. Rapid leaf area expansion.
Ensure consistent moisture and nutrients. Mulch around plants to retain soil moisture and suppress weeds. Support vines with trellises if space-limited, but fruit will need slings. Thin to 1 plant per hill after true leaves appear.
Flowering & Pollination
3-4 weeksLarge bright yellow flowers appear; male flowers emerge first, followed by female flowers (identifiable by small fruit bulges behind blooms). Bees and other pollinators are essential.
Maintain consistent watering; stress reduces fruit set. Avoid pesticides during bloom times to protect pollinators. Hand-pollinate if few pollinators are present by transferring pollen from male to female flowers with a small brush.
Fruit Development & Maturation
4-6 weeksFruits rapidly expand and develop characteristic deep orange color. Skin hardens and thickens. Fruit reaches 8-12 pounds with smooth surface, defined ribs, and sturdy handle.
Keep soil consistently moist but allow surface to dry between waterings. Remove competing fruit so plant dedicates energy to 1-3 quality pumpkins. Reduce nitrogen fertilizer; switch to potassium to harden skin. Place straw under fruits to prevent rot.
Ripeness & Harvest Readiness
1-2 weeksSkin becomes hard and fully orange with no green remaining. Stem hardens and dries. Fruit resists fingernail piercing.
Stop watering 1-2 weeks before harvest to harden skin and cure the plant. Harvest when vines begin to deteriorate or at first frost threat. Cure fruits in warm (75-85°F), dry location for 7-10 days to harden skin for storage.
Common Pests
-
Wrap base of stems with aluminum foil or burlap; inspect regularly for entry holes and larvae. Inject spinosad or Bt into stems if borers are detected. Plant resistant varieties in rotation.
-
Water at soil level, avoid wetting foliage. Improve air circulation by pruning lower leaves. Apply sulfur or neem oil spray at first sign of white coating. Remove heavily infected leaves.
-
Use row covers on young plants. Yellow sticky traps. Hand-pick beetles. Apply neem oil or spinosad if infestation is severe.
-
Hand-pick eggs (orange clusters on leaf undersides) and adults. Apply kaolin clay spray. Use row covers on seedlings. Neem oil and spinosad are moderately effective.
-
Improve drainage and air circulation. Water early in day at soil level. Remove infected leaves promptly. Apply copper fungicide or sulfur if needed.
Uses
Carving & Decoration
CulinaryHowden's ideal size, smooth skin, firm flesh, and sturdy handle make it the premier carving pumpkin. The dense flesh is less likely to collapse after carving, extending the carved display life. [source]
Pumpkin Flesh & Seeds
CulinaryWhile not as sweet as pie pumpkins, Howden flesh can be roasted and pureed for soups, breads, and other dishes. Seeds roast into nutritious snacks rich in magnesium and zinc. [source]
Long-Term Storage & Display
HouseholdProperly cured Howden pumpkins store for 2-3 months in cool conditions, making them suitable for seasonal decoration well into winter and holiday displays. [source]
Wildlife & Livestock Feed
WildlifePumpkins are nutritious and palatable feed for chickens, goats, and other livestock. Seeds and flesh provide vitamins and minerals that support animal health. [source]
Fall Crafts & Education
CraftBeyond carving jack-o'-lanterns, Howden pumpkins serve as teaching tools for children about gardening, plant biology, and seasonal cycles. Their handle makes them ideal for displays and porch decoration. [source]
Harvest Tips
Harvest when skin is deep orange, hard, and resistant to fingernail indentation, typically 75-110 days after planting. Cut pumpkin from vine with 3-4 inches of stem attached using a sharp knife; handle carefully to avoid bruising. Harvest before first hard frost (32°F). Cure in warm (75-85°F), well-ventilated location for 7-10 days to harden skin and heal minor cuts. Store in cool (50-60°F), dry place with good air circulation for up to 3 months.
Fun Facts
- 🌱 Howden was bred in 1971 by John Howden, a farmer in Massachusetts. It quickly became the dominant carving pumpkin variety because its thick flesh resists collapse and rot after carving, unlike older open-pollinated varieties.
- 🌱 The characteristic deep orange color of Howden comes from high concentrations of carotenoid pigments, which also serve as antioxidants in human nutrition. The color deepens with maturity and curing.
- 🌱 Pumpkins are technically berries called 'pepos'—a specialized fruit with a hard rind and many seeds. A mature Howden pumpkin contains 200-500 viable seeds that can be saved and replanted.
Want personalized planting timelines?
Sign up to get frost dates, task lists, and more for your zone.
Get started free