How to Grow Jerusalem Artichokes

By Angie Lavezzo

About Jerusalem Artichokes

Also known as a “Sunchoke”, the Helianthus tuberosos L., is a relative of the sunflower which develops underground edible tubers. Tubers can be cooked similar to potatoes or used in pickling recipes. While best suited for the northern 2/3^rd of the United States, these strong growing perennials are able to be grown anywhere. Due to the high amount of inulin starch present prior to cooking, it is not recommended to eat these raw as it may cause flatulence.

Bed Preparation

Jerusalem Artichokes prefer fertile sandy loams or well drained areas making them easier to dig. Soils suitable for potatoes or corn will work well. Prepare whole tubers no less than 2 oz. that have two or three prominent buds.

Planting

Plant in winter and early spring (as long as the soil is workable). Plant 3″-5″ deep in rows that are 36″-42″ wide with 15″- 24″ between plants. Suggested fertilizer is 6-12-6; working compost into the planting is also recommended.

Cultivation

Cultivate shallowly and only as needed to control weeds and grass as the plant is being established. Shading provided by the plant, which can grow up to 6′ tall, will help with weeds as the season progresses.

Harvest

Harvest after first frost, the top of plant can be cut all the way back. Small hand rakes will provide help in locating tubers which are generally small to medium in size. Leave some tubers so plant can continue in spring.

Curing and Storage

The skin of Jerusalem Artichokes is very thin so take care when handling and preparing for storage. The skin is susceptible to rapid moisture loss so store immediately after harvest. Tubers will store best in a cold space (near 32 degrees) with high humidity of (85%-95%). Tubers will keep for 2-3 months.

	*Article Written by: Angie Lavezzo*
	About the Author: Angie Lavezzo is the former general manager of Sow True Seed. Beyond her professional role at Sow True, Angie's passion for gardening extends into personal hands-on experience, fostering plants and reaping bountiful harvests.