Photo: © Daniel IseliPlantoScanImage: PlantoScan
Pumpkin Plant Plant Care
Cucurbita maxima Duchesne
Updated · Sources · How we source care data
With its large, lobed leaves and vibrant orange color, this plant originates from South America. Plant collectors love Cucurbita maxima for its unique appearance and ability to produce a variety of edible squashes.
Every 7–10 days
Full sun
65–85°F
50–70%
At a glance
How do you care for Pumpkin Plant?
Water Pumpkin Plant every 7–10 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 65–85°F (18–29°C) and 50–70% humidity. Fertilize it every 2 months during the growing season. The ASPCA lists it as non-toxic to cats and dogs.
Where Is the Pumpkin Plant Native To?
What Is the Pumpkin Plant?
Pumpkin Plant (Cucurbita maxima) belongs to the Cucurbitaceae family within the Cucurbita genus. Pumpkin Plant is native to South America. Pumpkin Plant is also known as Winter squash, Pumpkin, Hubbard squash.
Pumpkin Plant displays a vining, sprawling habit growth habit, reaching up to 10 ft tall with a spread of approximately 15 ft. Pumpkin Plant produces bright yellow, large, trumpet-shaped flowers.
Leaf size: approximately 12 inches.
How Often Should You Water a Pumpkin Plant?
Cucurbita maxima requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–10 days
Let soil partially dry between waterings
What Light Does the Pumpkin Plant Need?
Pumpkin Plant thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Pumpkin Plant Prefer?
Cucurbita maxima grows best at temperatures of 65–85°F. Pumpkin Plant prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
65–85°F
Humidity
50–70%
What Soil Mix Works Best for a Pumpkin Plant?
Rich, well-draining soil with plenty of organic matter. Good drainage is essential for Pumpkin Plant to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Pumpkin Plant?
Feed Pumpkin Plant every 2 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 2 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Pumpkin Plant?
Transplant seedlings once they have 2-3 true leaves. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Pumpkin Plant?
Pumpkin Plant can be propagated through seeds. Similar propagation techniques also apply to zucchini plant plant care, which shares the same genus.
Is the Pumpkin Plant Toxic to Pets and Children?
Non-toxic to cats and dogs
Source: ASPCA Animal Poison Control Center plant list, which covers Cucurbita species (which includes Pumpkin Plant). View the ASPCA entry
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Pumpkin Plant?
Pumpkin Plant is susceptible to aphids, squash bugs, cucumber beetles. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Pumpkin Plant Need?
Pumpkin Plant grows outdoors in USDA Zone 3a – 11b. It survives winters down to planting zone 3a. Pumpkin Plant is native to South America.
Hardiness Zone
Zone 3a – 11b
Keep exploring plants
Pumpkin Plant is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Cucurbita genus — compare its care with other Cucurbita species on PlantoScan.
Cucurbita is part of the Cucurbitaceae plant family — browse all Cucurbitaceae genera and species.
Pumpkin Plant thrives in bright light and direct sun — see other bright-light plants.
More Cucurbita Species
Other Cucurbita species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Cucurbita maxima Duchesne, family Cucurbitaceae (first published in Ess. Hist. Nat. Courges : 7 (1786)) — World Flora Online record, IPNI name record, Wikidata.
- Pet toxicity: The ASPCA lists Cucurbita species (which includes Pumpkin Plant) as non-toxic to cats and dogs. Source: ASPCA Toxic and Non-Toxic Plant List.
- Photo: © Daniel Iseli, PlantoScan.
- Hardiness zone: USDA Zone 3a – 11b, estimated from the plant's typical growing conditions.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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