Sunchoke

Root

Sunchoke

Helianthus tuberosus

Also known as: Jerusalem Artichoke, Earth Apple

RootSub-Canopy Asteraceae EdibleBiofuelWildlife AttractorErosion Control
Hardiness Zone
3-8
Ideal Temp
65–85°F
Survives Down To
-30°F
Life Cycle
Perennial

Sunchokes are tall, herbaceous perennials that can reach heights between 6 to 10 feet (1.8 to 3 meters). They have sturdy, branching stems with large, rough-textured leaves. In late summer to early fall, they produce yellow, sunflower-like blooms. The edible tubers are knobby and resemble ginger roots, varying in color from pale brown to white, red, or purple. Sunchokes are known for their vigorous growth and can become invasive if not managed properly. 🌞💧 **Sun and Water Requirements:** Sunchokes grow best in full sun but can tolerate partial shade. They prefer average, well-drained soils with consistent moisture. Mulching can help conserve soil moisture. While they are drought-tolerant once established, regular watering promotes better tuber yields. ✂️🫘 **Methods to Propagate:** Sunchokes are primarily propagated by planting tubers. Each tuber or tuber section with at least one eye can sprout into a new plant. Plant tubers 3 to 5 inches (7.6 to 12.7 centimeters) deep and about 12 to 18 inches (30 to 45 centimeters) apart in the spring after the danger of frost has passed. 🧑‍🌾👩‍🌾 **When to Harvest:** Tubers are typically ready for harvest in late fall, after the foliage has been killed by frost. They can be left in the ground and dug up as needed throughout the winter, as long as the soil is not frozen. Tubers left in the ground will sprout new plants in the following growing season.

Good Neighbors
  • Corn
  • Beans
  • Squash
Cautions
  • Potato
  • Tomato
  • Pepper
Known Threats — Organic Solutions Only
Aphids
Aphidoidea
Banded Winged Whitefly
Trialeurodes abutiloneus
Flea Beetles
Alticini
Greenhouse Whitefly
Trialeurodes vaporariorum
Lettuce Aphid
Nasonovia ribisnigri
Lubber Grasshopper
Romalea microptera
Root Aphid
Pemphigus spp.
Root Rot
Various (e.g., Pythium spp., Phytophthora spp., Rhizoctonia spp., Fusarium spp.)