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Elements of Structural and Systematic Botany
B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 402968

The average, annual, minimum temperature zone where Gasteria armstrongii is cold hardy
USDA Zone:9 20° to 30°F   (-6.5° to -1°C)
Type of plant - perennial
Foliage: v. thick rough lvs.
Gasteria armstrongii sales history


Gasteria armstrongii is included in the following
B and T World Seeds flowering plant categories.

26:   Succulent Plant Seed List
31:   House and Container Plant Seed List
37:   South African Native and Introduced Plants
43:   Herbaceous Border Plant Seed List
242:  Asphodelaceae
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 Gasteria armstrongii

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.

Gasteria armstrongii seeds will usually germinate in 30-90 days, even under good conditions germination may be erratic.
Normally will only germinate with light so surface sow. Sow Gasteria armstrongii seeds on the surface of a Well drained seed sowing mix at about 22°C.

Succulents


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