Which plants pair well with Watermelon?

Sweet corn, Bean, Nasturtium, Radish

How fast do I get my plan?

Three steps, three minutes. Type your location, measure your bed, click the veg you like. I do the rest.

Free: one bed, full annual plan, PDF export — free and no account needed. Pro (multiple beds + weather + garden calendar + push & email reminders): €4.90/month or €39/year. Premium (with AI coach Stachi): €9.90/month or €79/year.

Does it work for a balcony planter?

Yes. From a 40×20 cm balcony box to a 3×1 m raised bed — same three steps, same outcome.

Do I need an account?

Not for your first plan — creating one works without signing in. You'll need an account once you want multiple beds, your plan on multiple devices, or weather reminders.

← All plants

Vegetables · Warm

Watermelon

Cucurbitaceae

Plant spacing: 100 cm
USDA zones: 6a–11b
Frost-sensitive: yes
Growth duration: 14 weeks

Which beds suit?

Sun (prefers): full sun
Soil (prefers): loamyAlso okay:raised-bed mix
Drainage (prefers): normalAlso okay:very free-draining

Seed & start

Pre-culture recommended

Start indoors / cold frame first, transplant into the raised bed later.

Stachi's tip

Watermelon is the ultimate summer diva: 14-week season, lots of heat, ENORMOUS space (min. 1 m² per plant). In temperate raised beds only small-fruited varieties ('Sugar Baby'). Ripe when the tendril next to the fruit turns brown and it sounds hollow.

Who is Stachi? →

The plant's year: sowing, transplanting, harvest

Sowing

Transplanting

Harvest

Good neighbours

Limited evidence. This value is not backed by a specialist source — treat it as a pointer.

Avoid these neighbours

No known conflicts.

Limited evidence. This value is not backed by a specialist source — treat it as a pointer.

Good pre-cultures

Stachi has no specific pre-cultures recorded.

What comes after Watermelon?

When the bed frees up, the season is usually not over. We worked out what still fits afterwards — with time windows and reasons.

See follow-on crops for Watermelon →

Sources

LLM-Baseline-2026-05-27 Phase 7 expansion
Bio-Gärtner – Melonen [Cucumis melo, Citrullus lanatus] (https://bio-gaertner.de/pflanzen/Melonen/Alle)

Where these figures come from

Timing: Traditional recommendation. Rarely studied under controlled conditions — treat it as experience, not law.
Spacing: Traditional recommendation. Rarely studied under controlled conditions — treat it as experience, not law.
Companion planting: Limited evidence. This value is not backed by a specialist source — treat it as a pointer.
Crop rotation: Limited evidence. This value is not backed by a specialist source — treat it as a pointer.
Yield: Limited evidence. This value is not backed by a specialist source — treat it as a pointer.

Sources: LLM-Baseline-2026-05-27 Phase 7 expansion · Bio-Gärtner – Melonen [Cucumis melo, Citrullus lanatus] (https://bio-gaertner.de/pflanzen/Melonen/Alle)

Related plants

Products mentioned in this post

Plantura organic tomato seed set (10 varieties)Open-pollinated, good germination — robust for raised beds.
Organic tomato seed set, 14 varieties
Organic heirloom tomato seed set (Demeter, 12 varieties)
Organic vegetable seed set, 10 varietiesCucumber, tomato, beetroot, broccoli, carrot, chard & more.