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B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Grevillea polybotrya is cold hardy
USDA Zone:9 20° to 30°F (-6.5° to -1°C)
|Type of plant - shrub
Flower or inflorescence:
CREAM, caramel frag., in racemes
to 15x11mm, BROWN
to 5cm.x9mm., glabrous
|Height, in meters: 4
Height, in feet: 13.20
|Grevillea polybotrya sales history
is included in the following
B and T World Seeds flowering plant categories.
|18||: Australian and African Proteaceae|
|55||: Fragrant or Aromatic Flower or Foliage Plant Seeds|
|57||: Arid and Dry Condition Plant Seed List|
|169||: Sandy Soil 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.|
|191||: Tropical Shrubs and Trees|
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.
Grevillea polybotrya seeds will usually germinate in 20-25 days.
Soak Grevillea polybotrya seeds in warm water, which should be changed daily. Most seeds swell up when they are soaked, those that do should be sown immediately. Seeds that don't swell can be gently scarified.
(Soak for 24 hours).