Planting Bitter Melon
Bitter Melon is a warm season vegetable in the Cucurbitaceae family. Getting the timing right is the difference between a strong stand and a disappointing one, so the windows below are given relative to your own last spring frost and first fall frost rather than a generic calendar date. Look up your local frost dates and count back or forward from there.
Bitter Melon is started indoors 3–4 weeks before your last spring frost date, giving seedlings a head start before they move outside.
Sow Bitter Melon directly into the garden 2–3 weeks after your last frost, once the soil has warmed.
Bitter Melon can be grown by starting indoors and direct sowing. Starting indoors gives the longest, most controlled season, while direct sowing is simplest where the season is long enough.
Spacing and Planting Depth
Give Bitter Melon room to mature. The figures below come from verified extension and seed-supplier data for typical varieties.
| Spacing in row | 18 inches |
|---|---|
| Row spacing | 48 inches |
| Plants per sq ft | 0.17 |
| Planting depth | 0.75 inches |
| Sun requirement | Full sun |
Days to Maturity
Bitter Melon reaches maturity in 80–100 days from transplant.
Bitter Melon is ready to harvest after about 90 days. Harvest before the first fall frost, which will end the plant's productive season.
Conditions and Care
As a warm-season vegetable, Bitter Melon needs warm soil and settled weather to thrive, and is set back or killed by frost. It is frost tender, so wait until all danger of frost has passed before planting out and harvest before the first fall frost.
Bitter Melon needs full sun — give it at least six hours of direct light a day for the best growth and flavor. Sow seed about 0.75 inches deep, then keep the soil evenly moist until seedlings establish.
Bitter Melon belongs to the Cucurbitaceae family; rotating where you grow members of this family each year helps limit the build-up of soil-borne pests and disease. Bitter Melon is generally grown as a single planting each season rather than succession sown.
Companion Plants
Pairing Bitter Melon with the right neighbors can improve growth and deter pests; a few combinations are best avoided.
Grows well with: Corn
Growing Notes
Trellis-grown vine; needs long warm season.