Annual Vegetable · 8 varieties

Wax gourd

Benincasa hispida

Cucurbitaceae — the same plant family as winter squash, cucumber, summer squash, melon and 7 more here. Relatives share pests and diseases, which is why rotation plans group by family.

Wax gourd (Benincasa hispida) is an annual vegetable. It wants full sun and pH 6–6.8 soil, with about 1–2 in of water weekly. It matures in about 90–150 days from sowing, or 75–130 days from setting out a transplant. Watch for spider mites and fusarium wilt. Below: its full sourced profile from 5 extension sources, plus a planting calendar timed to your frost dates.

Sun Full sun
Water Moderate
Matures 75–130 days — from transplantest from transplant
Mature size 9–18 in
Spacing 36–72 in
Soil pH 6–6.8est
Frost Tender
When to plant wax gourdtypical · zone 6b
Your zone
…or your ZIP, for your real frost dates

Germinating
Seedlings
Growing
Flowering
Fruit set
Ripening
Harvest

Typical dates for zone 6b — set your zone or ZIP for yours. This calendar assumes the crop is started indoors. Timing is a guide from the crop's sourced growth stages; confirm with your local frost dates and extension before you sow.

Growing wax gourdevery fact says where it came from

What we will not put a number on

We do not give a feeding rate for this crop, and that is deliberate rather than a gap. The figures published by extension services are pounds of nitrogen per acre for a production field — they do not convert safely to a raised bed or a pot without knowing your soil test and your fertilizer's analysis, and guessing errs toward burning roots. It is also why every chart you find online disagrees with the next one.

We give watering as a depth per week rather than gallons per plant, because that is how it is actually measured and how the published figures are written. A gallons-per-plant number depends on your spacing, your soil and whether the plant is in a pot — so it would look more precise than it is.

Site & soil

Sun
Full sun
Soil pH
6–6.8est
Soil texture
Loam, Well drained
Frost tolerance
Tender

No published figure for the temperature frost starts to hurt it, the temperature that would kill it and a heat limit. We looked — where a number is missing here it is missing from the research, not skipped. The crop’s frost and heat tolerance above still applies.

The plant

Mature height
9–18 in
Mature spread
10–15 ft
Growth rate
Fastest
Spacing in row
36–72 in
Between rows
72–108 in
Planting depth
1.5–2 in
Container size
10–15 gal — low end is the minimum, high end is betterest
Support
Self-supporting
Grown from
Direct sow, Transplant

Water & feeding

Water needs
Moderate
Water per week
1–2 in/wkest
Critical water
Flowering, Fruit setest
Feeding
Moderate

Timing & fruiting

Days to maturity
90–150 days from seed · 75–130 days from transplantest
Harvest cues
Skin set, Fruit sizing

Planted again for autumn

Set plants out by
early Aug typical · zone 6b

75 days to maturity from setting a plant out — that is what our sources measure for this crop, so this is a date for planting out and not a sowing date, counted back from the first frost above. Not published for anywhere in particular: it is your own frost date and this crop's own figure, which is why it works wherever you are. A days-to-maturity figure is a catalog number for a good season rather than a promise, and a cold month moves it.

Edible parts per source: fruit.

What tends to go wrongmost-cited first
PestsSpider mitesAphidsNematodes
DiseasesFusarium wiltBacterial wiltDowny mildewPowdery mildewCucurbit virus

Compiled from the extensions cited below. Which ones actually show up depends on your region — your extension's local list is the last word.

All 8 varietiesthe ones with their own page are linked
Variety TypeHabit DaysColorSizeWhat it is known for
Chinese Fuzzy Melon Fuzzy Melon 55–60 White Medium
Chinese Preserving Melon Heirloom Winter Melon 75–130 White Large
Giant Bullet Head Heirloom Winter Melon 75–130 White Very Large Baker Creek Heirloom Seeds describes this askeeps a long time after picking
Giant Round Winter Melon Winter Melon 90 White Very Large
Lai Jud Hybrid F1 Winter Melon Vining 60–65 White Small True Leaf Market (Kitazawa brand) describes this askeeps a long time after picking
Oblong Winter Melon 75–130 White Large
Small Round Heirloom Winter Melon Vining 75–80 White Small The Amazing Seeds describes this askeeps a long time after picking · gives a heavy crop
Tong Qwa Winter Melon 75–130 White Large NC State University Cucurbit Breeding Program records this asgives a heavy crop
Sources5 cited · 4 organizations
  • Michigan State University Extension
  • Missouri Botanical Garden
  • University of California Agriculture and Natural Resources (UC Small Farms)
  • University of Florida IFAS Extension

We compile bare facts from these university-extension and horticultural sources, never copied prose. 13 of the 19 values on this page carry a citation. The rest are marked est; hover one and it says why — either nobody publishes a figure we could point at, or a person set it and attached no source. Figures vary with climate and seed source; confirm with your local extension before you buy.

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