B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Hypericum oblongifolium is cold hardy
USDA Zone:9 20° to 30°F (-6.5° to -1°C)
|Type of plant - shrub
Flower or inflorescence:
br. YELLOW-ORANGE, stellate, cyl. infl.
3-9cm., ell-obl., thick papery
|Height, in meters: 2.4
Height, in feet: 7.92
|Hypericum oblongifolium sales history
| Parts of Hypericum oblongifolium are considered toxic.
Synonyms (alternative names) for Hypericum oblongifolium:
is included in the following
B and T World Seeds flowering plant categories.
|38||: Indian Native and Introduced Plants|
|43||: Herbaceous Border Plant Seed List|
|190||: Trees and Shrubs For Mediterranean Climates|
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.
Hypericum oblongifolium seeds will usually germinate in 30-90 days, even under good conditions germination may be erratic.