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Heuchera americana


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Heuchera americana

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 1362

The average, annual, minimum temperature zone where Heuchera americana is cold hardy
USDA Zone:4 -30° to -20°F   (-34.5° to -29°C)
Type of plant - evergreen
Flower or inflorescence: small GREEN-WHITE
Fruit: capsule 4-10mm. long
Foliage: ovate, to 3.5x11cm.
Height, in meters: 0.6
Height, in feet: 1.98
Heuchera americana sales history

Common names for Heuchera americana:

Alum Root,  Alumroot,  American Sanicle,  Rock Geranium, 


Heuchera americana is included in the following
B and T World Seeds flowering plant categories.

9:   Alpine and Rock Garden Seed List (Hardy and Tender)
36:   Herb Seed List Culinary Medicinal Dye and Aromatic
Not all medicinal, dye or aromatic plants are edible, some are toxic if eaten and others are dangerous if applied to the skin. Please check uses for plants.
43:   Herbaceous Border Plant Seed List
86:   Natives of U.S.North East
87:   Natives of Central U.S.A.
95:   Canadian Natives Central Area
130:   Ground cover Plant Seed List (see also List 133)
614:  Saxifragaceae
719:   North American Native Ethnobotanicals
Including medicinal, dye, fiber, food, construction, ritual
720:   Fire Resistant Plants
Different classes of resistance: some grow back, some don't burn, a few have highly inflammable leaves that leave the rest of the plant intact, some trees don't have lower branches.


Happier and Healthier Plants, Naturally

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


Germination guide for Heuchera americana

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.

Heuchera americana seeds will usually germinate in 10-60 days, even under good conditions germination may be erratic.
Normally will only germinate with light so surface sow. Sow Heuchera americana seeds on the surface of a Well drained seed sowing mix at about 20°C.


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