Watermelon

Sweet, juicy watermelons (Citrullus lanatus) for a warm greenhouse or sunny spot — choose compact, quick types in cooler climates. A cucurbit cousin of the melon.

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Watermelon seeds — juicy summer fruit for a warm spot

Few things say summer like a home-grown watermelon — sweet, juicy and surprisingly possible to grow in a warm greenhouse or sunny, sheltered spot. The species is gathered under Citrullus lanatus within our fruit seed range, a cucurbit cousin of the melon and squash. New to fruit from seed? Our fruit growing guide covers the basics.

Watermelons need heat and a long season — the calendar shows when to sow.

Small-fruited types for cooler climates

In cooler regions, choose quick, compact, small-fruited varieties and grow them under glass or fleece for the best chance of ripe, sweet fruit. They share the warmth-loving habits of their relatives the melon and our gourds and squash.

Growing watermelons from seed

Sow indoors in warmth in spring, pot on, and plant into rich soil in the warmest, sunniest spot you have once it's reliably mild. Keep them well fed and watered while growing, then ease off water as the fruit ripens to concentrate the sweetness.

Growing more warmth-loving crops? Here's where to look next.

Popular fruit categories: Citrullus lanatus · Melon · Gourds & Squash · Container Fruits · All Fruit Seeds

At SeedsChoice, every order ships from Meppel, NL with fast, tracked EU delivery.

Frequently Asked Questions

Can I grow watermelon in a cool climate?
Yes, with help — grow under glass or fleece and choose quick, small-fruited varieties.

How much warmth do they need?
A lot — they crave a long, hot season to ripen sweet fruit.

When do I sow them?
Indoors in warmth in spring, to plant out once it is reliably mild.

How do I get sweet fruit?
Feed and water well while growing, then ease off water as the fruit ripens.

Do they need much space?
Yes — the trailing plants need room, or train them up a strong support.