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Erysimum Species, European Wallflower, Siberian Wallflower, Tall Wormseed Mustard

Erysimumhieraciifolium

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Erysimum hieraciifolium by Kell
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Family
Brassicaceae (brass-ih-KAY-see-ee)
Info
Genus
Erysimum (er-RIS-ih-mum)
Info
Species
hieraciifolium (hi-er-ay-see-ih-FOH-lee-um)
Info
Synonym
Erysimum afghanicum
Erysimum robustum
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Evergreen
Herbaceous
Smooth
Height
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
Spacing
9-12 in. (22-30 cm)
Hardiness
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)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger

Unknown - Tell us

Bloom Color
Orange
Bright Yellow
Bloom Time
Late Winter/Early Spring
Mid Spring
Late Spring/Early Summer
Other Details
Category
Groundcovers
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Dark/Black
Where to Grow
Can be grown as an annual
Bloom Characteristics

Unknown - Tell us

Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
Direct sow as soon as the ground can be worked
Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
Allow seedheads to dry on plants; remove and collect seeds
Regional

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

Soda Springs, Idaho

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smiln32
Oklahoma City, OK (Zone 7a) | September 2004 | neutral

It has been introduced to the U.S. and I believe is naturalized in Illinois, Indiana, Michigan, New York, Pennsylvania and Wisconsin.

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