Vegetable Burdock
Arctium lappa 'Shirohada'

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Arctium (ARK-tee-um) (Info)
Species: lappa (LAP-uh) (Info)
Cultivar: Shirohada

Category:

Vegetables

Herbs

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

Height:

18-24 in. (45-60 cm)

Spacing:

3-6 in. (7-15 cm)

18-24 in. (45-60 cm)

Hardiness:

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Unknown - Tell us

Bloom Time:

Late Spring/Early Summer

Mid Summer

Foliage:

Velvet/Fuzzy-Textured

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; direct sow after last frost

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Allow seedheads to dry on plants; remove and collect seeds

Properly cleaned, seed can be successfully stored

Regional

This plant has been said to grow in the following regions:

Pelzer, South Carolina

Gardeners' Notes:

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Positive

On Feb 9, 2004, Michaelp from Glendale, UT (Zone 5a) wrote:

Plant seed in ground as soon as ground can be worked. Germination in 4 to 7 days; 110-130 days to harvest Plant 3 inch spacing in rows 2 feet apart. Harvest when root is 3/4 inch in diameter and 2 feet long. Soil must be loose and worked to 2 foot depth for good root growth (long and straight.

'Shirohada' is an early variety, with nice white skin on the root, and contains no calories. High in fiber and minerals, iron, chromium, magnesium, calcium, and potassium.

Prepare by cutting root in fine strips, soak in water 2 or 3 hours, boil and use in salads or stir fry. Burdock also has medicinal uses.