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PlantFiles: Siberian Wallflower
Erysimum x marshallii

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Family: Brassicaceae (brass-ih-KAY-see-ee) (Info)
Genus: Erysimum (er-RIS-ih-mum) (Info)
Species: x marshallii (mar-SHALL-ee-eye) (Info)

Synonym:Cheiranthus allionii
Synonym:Cheiranthus x marshallii
Synonym:Erysimum allionii
Synonym:Erysimum x allionii

4 vendors have this plant for sale.

14 members have or want this plant for trade.

Category:
Biennials
Perennials

Height:
18-24 in. (45-60 cm)

Spacing:
9-12 in. (22-30 cm)

Hardiness:
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
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)
USDA Zone 9a: to -6.6 C (20 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
Parts of plant are poisonous if ingested

Bloom Color:
Orange

Bloom Time:
Mid Spring
Late Spring/Early Summer

Foliage:
Evergreen

Other details:
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

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 semi-hardwood cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
From seed; sow indoors before last frost
From seed; direct sow after last frost

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

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There are a total of 12 photos.
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Profile:

5 positives
3 neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive lysswhit On Aug 11, 2014, lysswhit from Midvale, UT wrote:

I got this in a wildflower seed mix. It didn't bloom the first year, but was one of the only plants from that mix that stuck around. It stayed green throughout winter, even being buried in snow and surviving several long freezing periods. In April it bloomed!

I got the usual bright orange, but I guess I was lucky, because I also got a few stalks of other colors: a dark red and orange variation, and some creamy yellow with reddish purplish markings.

I had planted these in a shady area but the stalks leaned out of the bed to reach more sun, so I collected the seeds off the dried stalks in August to sow in some sunnier areas.

Positive EvilPlot On Aug 1, 2011, EvilPlot from Calgary , AB (Zone 3a) wrote:

Sowed outdoors in spring. Two months later you see showy, glowy, orange flowers that perfumes the whole garden. Even survived several hailstorms. I hope they will self seed. Would be nice to have them again year, after year.

Positive karlaward On May 13, 2011, karlaward from Mapleton, ND wrote:

I planted this from a "mixed" garden, just found the name today. Love the smell! It took 3 years (grown from seed) before it bloomed. If dead-headed will continue to bloom all summer until frost, evergreen even in ND. Grows in partial shade, never had to water, does well if ignored. I hope to collect seeds and plant elsewhere in other gardens.

Positive Caedi25 On Mar 5, 2010, Caedi25 from Kirkland, WA (Zone 8b) wrote:

Put a few of these hearty, glowy (love the brilliant orange!) plants along a sinuous "dry creekbed" we created from all the rock we've excavated during new bed preparation and they have continuously added to their own numbers. Their informal sprawl is exactly what we hoped for, their scent adds delight to the process of working around them and we have begun to collect their seed and sow it elsewhere in the yard to spread the cheer. Love 'em!

Positive threegardeners On Feb 6, 2007, threegardeners from North Augusta, ON wrote:

Beautiful plant, grows well here in Ontario. If kept dead headed will bloom all summer. Highly scented

Neutral ladybluejey On Jul 27, 2005, ladybluejey from Yuanzhou Boluo, Huizhou
China wrote:

Because I am trying to grow this in southern China, in a very clay based soil, I have had difficulties, but was able to grow them. The only problem, be careful, cats who like to eat plants maybe end up fairly sick from the leaves. I have had to deal with a lot of vomiting as a result of my cat ingesting them.

Neutral Kim_M On May 16, 2005, Kim_M from Hamburg, PA (Zone 6b) wrote:

Flowers are Highly scented. Unfortunately I don't care much for orange flowers and mine bloomed orange. But the scent is wonderful!

Neutral Baa On Feb 1, 2003, Baa wrote:

An evergreen, hybrid, short lived perennial.

Has grey to deep green, slightly downy, lance like, toothed leaves. Bears scented, yellow to bright orange, 4 petalled flowers.

Flowers March - May

Loves a well drained, poorish, neutral to alkaline soil in sun or light shade.

Usually grown as a biennial.

May be subject to club root fungus (Plasmodiophora brassicae) especially in acid soils. Don't grow in a bed where you expect to grow cabbages in the next year or two (and vice versa), especially if you have bought the plants from a nursery.

Regional...

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

Richmond, California
Rosamond, California
Santa Clara, California
Vacaville, California
Des Plaines, Illinois
Itasca, Illinois
Mascoutah, Illinois
Saint Charles, Illinois
Troy, Illinois
Gloucester, Massachusetts
Blissfield, Michigan
Pinconning, Michigan
La Crescent, Minnesota
Mathiston, Mississippi
Helena, Montana
New Milford, New Jersey
Hannibal, New York
Henrietta, New York
Norwood, New York
High Point, North Carolina
North Ridgeville, Ohio
Tipp City, Ohio
Williamsburg, Ohio
Prineville, Oregon
Salem, Oregon
Unicoi, Tennessee
Austin, Texas
Lubbock, Texas
Midland, Texas
Midvale, Utah
Kalama, Washington
Kirkland, Washington
Ocean Shores, Washington
Seattle, Washington
Appleton, Wisconsin



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