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Sweet potato

Vegetables · Warm

Sweet potato

Convolvulaceae

At a glance

Plant spacing
40 cm
USDA zones
6a–11b
Frost-sensitive
yes
Growth duration
22 weeks

Which beds suit?

Sun (prefers)
full sun
Soil (prefers)
sandyAlso okay:loamyraised-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

Sweet potato is the tropical diva — 4-5 months, lots of warmth + water. In temperate raised beds only under fleece. Harvest tubers in October when foliage withers.

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.

Sources

  • LLM-Baseline+gpt-5-review
  • LLM-Baseline-Intercrop
  • LLM-Baseline-2026-05-09 yieldKg
  • LLM-Baseline-2026-05-10 family-zehrer
  • LLM-Baseline-2026-05-10 sun-soil-drainage
  • LWG Bayern (Gartenakademie) – Manche mögen's besonders warm (https://www.lwg.bayern.de/gartenakademie/gartendokumente/wochentipps/399184/index.php)

Where these figures come from

Timing
Horticulturally established — consistent across the cited standard works.
Spacing
Horticulturally established — consistent across the cited standard works.
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+gpt-5-review · LLM-Baseline-Intercrop · LLM-Baseline-2026-05-09 yieldKg · LLM-Baseline-2026-05-10 family-zehrer · LLM-Baseline-2026-05-10 sun-soil-drainage · LWG Bayern (Gartenakademie) – Manche mögen's besonders warm (https://www.lwg.bayern.de/gartenakademie/gartendokumente/wochentipps/399184/index.php)

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