Jerusalem Artichoke plant profile
Helianthus tuberosus
A perennial vegetable for full sun.
Last updated .
When to plant
When to plant Jerusalem Artichoke
NC State Extension says Jerusalem artichoke tubers may be planted in early spring, much like potatoes: plant whole tubers or pieces with two to three strong buds, and do not let the pieces dry out before planting. Tubers are harvested in fall about two weeks after the flowers fade.
The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.
Open Jerusalem Artichoke in my garden calendarShows the source-backed planting season, not frost-adjusted dates.
Growing conditions
- Sun
- Full sun
- Soil pH
- 7 to 7.5
- Lifecycle
- Perennial
- Spacing
- 36 to 72 in apart
- Hardiness
- Zones 3a to 9bFind my hardiness zone
Common problems
Watch for these
Also watch for: spreads aggressively by rhizome, self seeding colonies, rust, leaf spots, slugs on tubers.
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Helianthus tuberosus (Jerusalem Artichoke, Sunchoke, Sunroot)
NC State Extension Gardener Plant Toolbox. Supports general reference. Checked 2026-06-18.