Corydalis Species, Holewort, Hollowroot, Hollow Leek, Hollow Root
Corydaliscava

Synonym:Corydalis albiflora

Synonym:Corydalis pseudocava

Synonym:Corydalis stummeri

Synonym:Corydalis tuberosa

Category
Bulbs
Perennials

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Light Shade

Foliage
Herbaceous

Foliage Color

Height
24-36 in. (60-90 cm)

Spacing
12-15 in. (30-38 cm)

Hardiness
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
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)

Where to Grow
Grow outdoors year-round in hardiness zone

Danger
Parts of plant are poisonous if ingested

Bloom Color
Lavender
White/Near White

Bloom Characteristics

Bloom Size

Bloom Time
Late Spring/Early Summer
Mid Summer

Other details

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
Non-patented

Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)

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