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

Corydaliscava

Family
Papaveraceae (pa-pav-er-AY-see-ee)
Genus
Corydalis (kor-ID-ah-liss)
Species
cava (KA-vuh)
Synonym
Corydalis albiflora
Corydalis pseudocava
Corydalis stummeri
Corydalis tuberosa
Sun Exposure
Light Shade
Foliage
Herbaceous
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)
Danger
Parts of plant are poisonous if ingested
Bloom Color
Lavender
White/Near White
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Bulbs
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
Bloom Size
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
Regional

This plant is said to grow outdoors in the following regions:

Lockport, New York

Clackamas, Oregon

Sunnyside, Oregon

Featured Videos

Gardener's Notes:

2
positives
1
neutral
0
negative
Sort By:
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A
(Zone 6b) | February 2016 | positive

Corydalis cava is a georgous flower for natural spring gardens here in Austria. It makes many seedlings after a few years and will settle...Read More

C
ROSLINDALE, MA | April 2015 | neutral

This woodland spring ephemeral is rarely available in the US, but it looks very similar to C. solida, which is commonly sold by fall bulb...Read More

P
(Zone 7b) | April 2015 | positive

Being native to middle Europe, this beautiful little perennial covers wide areas in our deciduous woodlands and blooms from late march to...Read More

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