B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Eucalyptus petraea is cold hardy
USDA Zone:9 20° to 30°F (-6.5° to -1°C)
|Type of plant - fuel
Flower or inflorescence:
WHITE to CREAM, -1.5cm. dia., many
to 10x8mm., obconic.
to 12x2.5cm., shiny, dark
|Height, in meters: 14
Height, in feet: 46.20
|Eucalyptus petraea sales history
Common names for Eucalyptus petraea:
|Granite Rock Box,|
is included in the following
B and T World Seeds flowering plant categories.
|17||: Eucalypts Relatively Tender in UK (most Species)|
|May be hardy to USDA Zone 9 (20 to 30°F -6.5 to -1°C)|
|60||: Economic Timber Trees|
|see also Cabinet Wood Tree Seeds|
|168||: Shade and Shelter Tree and Shrub Seed List|
|172||: Tree Species For Coppicing|
|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.
Eucalyptus petraea seeds will usually germinate in 14-90 days, even under good conditions germination may be erratic.
Eucalyptus petraea 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".
Sow seed and chaff together. (Pre-chill for 4 weeks).