How to grow cantaloupes
Cucumis melo · cucurbitaceae family · annual crop
Cantaloupe is a warm-season crop, started from seed in the garden or transplanted, and planting opens once soil reaches about 65°F; varieties in the library mature in 70 to 86 days.

Cantaloupe is a warm-season vine grown for a fruit whose flavor and aroma sharpen only after real summer heat, which is why home gardeners give it the sunniest, most sheltered part of the bed. The sprawling vines ramble along the ground, or can be trained up a trellis with the fruit slung for support, and a single plant can produce a handful of melons across the second half of the season. Gardeners plant it after the soil has warmed past frost risk, since the crop needs a long, hot stretch, roughly eighty to a hundred days from transplanting, to carry fruit from flower to ripeness.
The hardest part of growing cantaloupe well is judging ripeness at harvest. University of Maryland Extension notes that a melon is ready at full slip, when the stem separates from the fruit with light pressure rather than needing to be cut or torn away. A second-year gardener eager for the first melon often pulls fruit early, tugging at a stem that has not yet let go, or waits too long and finds fruit rotting on damp soil. Either mistake trades away the sweetness the vine spent the summer building toward.
Growing basics
Cantaloupe is a warm-season crop, started from seed in the garden or transplanted.
Seeds germinate once soil reaches about 65°F.
Varieties in the library run 70 to 86 days to maturity.
Grows best in full sun.
Frost-tender: plants go out after the last frost.
Space plants 18 to 24 inches apart.
Common questions
When do you plant cantaloupes?
Cantaloupe is a warm-season crop, started from seed in the garden or transplanted. Plants go out after the last frost. Planting opens once soil reaches about 65°F.
What soil temperature does cantaloupes need?
Seeds germinate once soil reaches about 65°F.
How far apart do you space cantaloupes?
Space plants 18 to 24 inches apart.
How long does cantaloupes take to mature?
Varieties in the library run 70 to 86 days from planting to harvest.
5 cantaloupes in the library
Ambrosia · Hale's Best Jumbo · Sugar Cube · Minnesota Midget · Honey Rock
Each has a full cited page in the library.
Pests and diseases we cover
Aphid
Pickleworm
Spotted cucumber beetle
Squash bug
Striped cucumber beetle
Two-spotted spider mite
Whitefly
Angular leaf spot
Anthracnose
Bacterial wilt (cucurbits)
Cucumber mosaic virus (CMV)
Damping off
Downy mildew (cucurbit)
Gummy stem blight
Phytophthora blight
Powdery mildew
Identification and treatment for each, with photos, in the library.
Row & Bed covers 5 cantaloupe varieties, each with a cited care timeline and fertilization schedule, identification and treatment for the 7 pests and 9 diseases that reach them, and planting windows worked out for your ZIP.
Set up your gardenSee something that does not match your garden? Write to andy@rowandbed.com.