How to grow cucumbers
Cucumis sativus · cucurbitaceae family · annual crop
Cucumber is a warm-season crop, started from seed in the garden or transplanted, and planting opens once soil reaches about 60°F; varieties in the library mature in 55 to 65 days.

Cucumber is a fast-growing vine, and gardeners grow it for the gap between a fruit picked that morning and one shipped from a store: crisp flesh without the softness of storage. A single plant can climb a trellis instead of sprawling across open ground, which the Alabama Cooperative Extension System notes keeps fruit clean, reduces disease, and eases harvest in less bed space. Because the vines keep producing new flowers once they start, cucumber rewards checking the bed every day or two instead of once a week.
The hardest part of growing cucumber well is keeping up with the harvest. University of Georgia Cooperative Extension notes frequent picking is essential to fruit quality, and a delayed harvest reduces both fruit quality and the plant's future productivity, since letting cucumbers mature and swell on the vine signals it to stop setting new ones. A second-year gardener who skips a few days during a busy week, assuming small fruit can wait, returns to swollen, seedy cucumbers hidden under the leaves. Picking those oversized fruit does not undo the damage: the vine has shifted effort into maturing seed, and new flowers slow for the rest of the season.
Growing basics
Cucumber is a warm-season crop, started from seed in the garden or transplanted.
Seeds germinate once soil reaches about 60°F.
Varieties in the library run 55 to 65 days to maturity.
Grows best in full sun.
Frost-tender: plants go out after the last frost.
Space plants about 12 inches apart.
Common questions
When do you plant cucumbers?
Cucumber 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 60°F.
What soil temperature does cucumbers need?
Seeds germinate once soil reaches about 60°F.
How far apart do you space cucumbers?
Space plants about 12 inches apart.
How long does cucumbers take to mature?
Varieties in the library run 55 to 65 days from planting to harvest.
6 cucumbers in the library
Marketmore 76 · Straight Eight · Boston Pickling · Diva · Lemon · Spacemaster
Each has a full cited page in the library.
Pests and diseases we cover
Aphid
Leafminer
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 6 cucumber varieties, each with a cited care timeline and fertilization schedule, identification and treatment for the 8 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.