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Erysimum capitatum


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Erysimum capitatum

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 73183

The average, annual, minimum temperature zone where Erysimum capitatum is cold hardy
USDA Zone:6 -10° to 0°F   (-23.5° to -18°C)
Type of plant - annual or biennial, depending on climate
Flower or inflorescence: frag. pale YELLOW, ORANGE or BROWN-MAROON spikes
Fruit: PURPLE pods
Foliage: obl.-lin., 4-15cm. long, branching plants
Height, in meters: 0.6
Height, in feet: 1.98
Erysimum capitatum sales history
Parts of Erysimum capitatum are considered toxic.

Common names for Erysimum capitatum:

Coastal Wallflower,  Douglas Wallflower,  Western Wallflower, 


Erysimum capitatum is included in the following
B and T World Seeds flowering plant categories.

43:   Herbaceous Border Plant Seed List
65:   World Coastal Tree and Plant Seed List
76:   Californian Native Plant Seed List
85:   Natives of U.S.South West (Arizona Texas New Mexico)
94:   Natives of Rocky Mountain Area U.S.A.
185:   Plant Species whose germination is improved by Smoke
"Smoke" contains a butenolide compound produced by certain plants when heated, it speeds up or starts the germination of seeds from many different genera.
270:  Brassicaceae
709:  Cruciferae
719:   North American Native Ethnobotanicals
Including medicinal, dye, fiber, food, construction, ritual


Happier and Healthier Plants, Naturally

plant-fungus communities, for improved nutrition, and disease and drought resistance.


Germination guide for Erysimum capitatum

These notes are a general guide, it is recommended to check specialist literature for some of the more unusual seeds in our lists.
Seed Germination Theory and Practice by Professor Norman C. Deno
Some knowledge about growing from seed is necessary to germinate even the easiest seeds. Most seeds require humidity to germinate, even desert plants like Welwitschia mirabilis require that their growing medium remains moist until germination.

Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet, the seeds may not get the oxygen they require.
Some seeds need to be in the light (surface sown) or in the dark (sown deep enough to receive little or no light) to germinate. A rule of thumb is to cover the seeds their own width deep in the growing medium, but some seeds prefer to be sown much deeper, and some fairly large seeds like to be surface sown (or higher).
Many seeds germinate best at certain temperatures, some will germinate at a comparatively wide range of temperatures, yet others need fluctuating temperatures.
Almost all seeds are waiting in a dormant state for some outside stimulus to break their dormancy, some just need sufficiently high ambiant humidity, others need scarification, vernalization or to be passed through the intestines of an animal.

Erysimum capitatum seeds will usually germinate in 10-14 days.
Sow Erysimum capitatum seeds about 6mm deep in a Well drained seed sowing mix at about 20°C.

Sow in seed bed, prick out 15cm apart, plant October.


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