Sweetpotato

Ipomoea batatas

Perennial tropical vine grown for swollen storage roots. Treated as an annual everywhere outside true subtropics.

Hardiness ratings

Sweetpotato hardiness across the four zone systems
SystemRatingTemperature rangeHow to read it
USDA hardiness zone Zone 8–12 −12.2 °C to 15.6 °C Plant tolerates down to this zone
RHS hardiness rating H4 −10 °C to −5 °C Plant needs at least this level of cold tolerance
Canadian plant hardiness zone Zone 8–9 −7 °C and warmer Plant tolerates down to this zone
Australian (ANBG) zone Zone 4–7 0 °C and warmer Plant tolerates down to this zone

Growing notes

  • Botanically unrelated to potato — Convolvulaceae (morning glory family) rather than Solanaceae
  • Started from "slips" (rooted shoots from a tuber), not tubers themselves

Categories

Related plants

Cross-check Sweetpotato against your zones

Reference

Sweetpotato on Wikipedia