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Mahonia nervosa

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Mahonia nervosa
5 gram for 19 Euros
available for preorder


Mahonia nervosa
28 gram for 92 Euros
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Mahonia nervosa
113 gram for 252 Euros
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Mahonia nervosa
250 gram for 383 Euros
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Mahonia nervosa
454 gram for 473 Euros
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Mahonia nervosa

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 1647

The average, annual, minimum temperature zone where Mahonia nervosa is cold hardy
USDA Zone:6 -10° to 0°F   (-23.5° to -18°C)
Type of plant - shrub
Flower or inflorescence: in 20 cm. racemes
Fruit: BLACK, to 8mm. dia.
Foliage: 11-23 lfts.
Height, in meters: 1
Height, in feet: 3.30
Mahonia nervosa sales history
Parts of Mahonia nervosa are considered toxic.

Common names for Mahonia nervosa:

Cascades Mahonia,  Long-leaved Oregon Grape,  Low Oregon Grape,  Water Holly, 


Mahonia nervosa is included in the following
B and T World Seeds flowering plant categories.

40:   Shrub Seed List, Hardy and Tender
76:   Californian Native Plant Seed List
88:   Natives of U.S.North West
94:   Natives of Rocky Mountain Area U.S.A.
260:  Berberidaceae
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 Mahonia nervosa

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.

Mahonia nervosa seeds will usually germinate in 90-120 days, even under good conditions germination may be erratic.
Normally will only germinate with light so surface sow. Sow Mahonia nervosa seeds about 1mm deep in a Peaty seed sowing mix at about 10°C.

Mahonia nervosa seeds need to be "overwintered" before they will germinate.

Stratification; cold treatment or vernalization. Seeds of some species need just a couple of weeks, others 3 months. Seeds can be stratified in dampened peat or sand, in a plastic box or bag at 4°C or 5°C in a refrigerator. The seeds should not be frozen or in a wet medium. Very small seeds can be sown on the surface of their growing medium, in pots sealed in plastic bags, and kept in the 'fridge. Many vernalized seeds need light to germinate when they are sown in the "Spring".
Seed Germination Theory and Practice by Professor Norman C. Deno

(Pre-chill for 3 weeks)


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