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B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Conophytum calculus is cold hardy
USDA Zone:9 20° to 30°F (-6.5° to -1°C)
|Type of plant - perennial
Flower or inflorescence:
clove frag. noct. YELLOW to ORANGE in summer
capsule 5-6 loc. (germ. 1-2 weeks, best with GA-3)
bod. to 35x30mm., clustering,..rocky, dry...(sow in autumn)
|Conophytum calculus sales history
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|
|55||: Fragrant or Aromatic Flower or Foliage Plant Seeds|
|57||: Arid and Dry Condition Plant Seed List|
|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.|
|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.|
Some knowledge about growing from seed is necessary to germinate even the easiest seeds.
Most seeds require humidity to germinate, even desert plants like
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.
Conophytum calculus seeds will usually germinate in 10-40 days, even under good conditions germination may be erratic.