winter melon (Benincasa hispida), photographi

How to Grow Winter Melon

Benincasa hispida · Zones 5-12

Winter Melon is a long-term planting — a young tree typically takes about 120 days to bear its first real fruit, and then produces for years. Season length, not a winter zone, decides where it grows. Its flowers are a moderate draw for honeybees and native bees, even though the fruit is the prize.

Winter Melon — the short answer

Winter Melon: grown in zones 5–12, full sun, pH 5–7.5, about 120 days to maturity.

USDA zones
Grown as an annual — see the growing season
Growing season, not a hardiness zone
Soil pH
5–7.5
FAO ECOCROP
Sun
Full Sun
Converted from FAO ECOCROP
Days to Maturity
120 days
We haven't confirmed this against a published source yet.
Frost-kill temp (growing season)
32°F
FAO ECOCROP

Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — each tile names its own row's source, because per-field provenance varies.

Score your parcel · free to start

Score Winter Melon on your exact land.

Zone averages can't see the slope, soil, frost, and sun that decide whether winter melon actually takes — and those shift from one yard to the next. Enter your address and we'll score winter melon against your land's real conditions.

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

No card required · your parcel report in seconds — read in full free for your first 14 days

What Winter Melon is

Winter Melon grows as an annual and reaches around twelve feet at maturity.

Life cycle and mature height: We haven't confirmed this against a published source yet.

How to grow Winter Melon

Season length, not a winter zone, decides where winter melon grows; it takes about 120 days to begin bearing. Winter Melon does best in full sun — at least 6 hours of direct sun a day — and soil from pH 5 to 7.5, on well-drained ground. It needs around 3,000 growing degree days to mature and a growing season of at least 80 frost-free days, which is why climate matters as much as soil.

USDA Zones

Grown as an annual — see the growing season

Soil pH

5 - 7.5

FAO ECOCROP

Sun

Full Sun

Converted from FAO ECOCROP

Drainage

well (dry spells)

FAO ECOCROP

Frost Kill Temperature

32°F

Where cold starts killing growing tissue. Not a winter-survival floor — a dormant perennial takes far colder, which its hardiness zone answers.

FAO ECOCROP

Minimum Growing Temperature

53.6°F

Below this it stops growing rather than dies — a pace limit, not a survival limit.

FAO ECOCROP

Days to Maturity

120 days

We haven't confirmed this against a published source yet.

GDD Required

3000+

Growing degree-days of accumulated warmth it needs to mature — humid summers reach this faster than cool coastal ones.

We haven't confirmed this against a published source yet.

Mature Height

12 ft

We haven't confirmed this against a published source yet.

Frost-Free Days

80+

The frost-free stretch it needs start to finish — short-season areas may need an indoor head start.

Growable Ground plant catalog

  1. Plant it right

    Set winter melon in full sun with well-drained soil. Many fruit trees need a second variety nearby to pollinate — check before you plant just one.

  2. Match the soil

    Winter Melon prefers pH 5 to 7.5 (FAO ECOCROP). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band.

  3. Water steadily

    Keep the root zone evenly moist through establishment. We haven't confirmed this against a published source yet. A 2–3 inch mulch layer holds moisture without waterlogging.

  4. Be patient, then harvest

    Winter Melon takes about 120 days to its first meaningful harvest. We haven't confirmed this against a published source yet. Prune annually while it establishes, and the tree will then crop for years.

Where Winter Melon thrives

Season length, not a winter zone, decides where winter melon grows. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.

A USDA zone is a 10°F band of average annual extreme winter minimum, so zones 5–12 spans average winter lows from -20°F to 60°F (USDA PHZM 2023). Across the 50 states and DC, that band covers 30 outright and splits 20 more down the middle.

Zones 5–12 highlighted on the USDA national hardiness zone map

Zones 5–12·Hardiness bandOpen map →

This map is derived from the USDA ARS / PRISM Plant Hardiness Zone Map (2023) and is not the official USDA Plant Hardiness Zone Map.

Where Winter Melon stands, state by state

Winter Melon is rated for zones 5–12 — a cold floor USDA puts at -20 to -10°F. Across the 50 states and DC, 30 sit fully inside that band, the line runs through 20 more, and 1 sits outside it — and inside every split state, the same line runs on at county grain.

Fully inside zones 5–12

30 states

3 of 30 shown

The line runs through

20 states

3 of 20 shown

Outside zones 5–12

1 state

State zone extents: USDA Plant Hardiness Zone Map (PHZM) 2023. A zone is a 10°F band of average annual extreme minimum temperature, so a state that splits the band contains the boundary — its own page draws the county line, and a parcel report resolves which side your land sits on.

Good to know

Winter Melon offers moderate value to bees and other pollinators. We haven't confirmed this against a published source yet.

Before you harvest winter melon, know your soil

Anything you grow to eat takes up what's in the ground it grows in, so it's worth knowing what's documented near you before you plant winter melon for food. Our free screen reads 8 federal source types across roughly 950K indexed sites and shows which sit near your address and which way they drain. It's a screening estimate from public records and proximity — not a soil test — so a nearby record means a soil test is worth it, not that your soil is unsafe.

Your land is one point inside Winter Melon's range

This page resolves to the species. Your state page draws the county line, and a report reads the parcel — the soil pH, drainage, sun, and frost dates on your exact ground, which no species average can see.

Free to start

See if Winter Melon will thrive on your land

Zone averages are a start. Your soil pH, drainage, sun exposure, and frost dates shape whether winter melon actually takes. We score it against the mapped and modelled conditions at your address.

Three things about your exact spot that zone averages miss:

Your soil pHYour frost-free daysYour sun & shade

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources analyzed in seconds

How we know this about Winter Melon

The figures above are cited per row, not per site: the pH band names this plant’s own source column, the three temperature figures each carry their own, and days-to-maturity cites the publication that actually lists it. All of it comes from the Growable Ground Plant Database — a compilation over FAO ECOCROP, USDA PLANTS, and university Extension sources, published openly with per-field provenance.

Grounded inUSDA PLANTS Database

Frequently asked questions

Can I grow Winter Melon in my zone?

Winter Melon is grown as an annual, so a hardiness zone does not decide it — its growing season follows your last and first frost dates. Soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.

How long until Winter Melon bears fruit?

Winter Melon typically takes about 120 days after planting to bear its first real crop, then produces for years. We haven't confirmed this against a published source yet. Soil, climate, and rootstock all shift the timeline.

When should you plant Winter Melon?

Set winter melon out in early spring or fall while it's dormant, so the roots establish before the heat of summer. Your local last-frost date — which a Growable Ground report pulls for your exact address — sets the precise window.

How much sun does Winter Melon need?

Winter Melon needs full sun — a spot that catches at least 6 hours of direct summer sun a day. We haven't confirmed this against a published source yet. In more shade it still grows, but usually gives a smaller, later crop. The catch is that a yard rarely gets even light everywhere — a fence, the house, or one tall tree can quietly take those hours. A Growable Ground report reads the real sun-hours across your land, canopy and buildings included, so you can pick the brightest bed before you plant.

What soil does Winter Melon need?

Winter Melon prefers soil pH 5 to 7.5, on well-drained ground (FAO ECOCROP). Your report scores your parcel's mapped soil against that using USDA SSURGO data.

Does Winter Melon attract pollinators?

Yes — winter melon's flowers are a solid nectar source for honeybees and native bees. We haven't confirmed this against a published source yet.