B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Hypericum nummularium is cold hardy
USDA Zone:6 -10° to 0°F (-23.5° to -18°C)
|Type of plant - perennial
Flower or inflorescence:
br. YELLOW stellate 1.5-3cm. dia., ~RED veined, in sub-corymb
to 1.8cm., broad ovate to orbic., glauc. under, thinly coriac...spreads - roots
|Height, in meters: 0.3
Height, in feet: 0.99
|Hypericum nummularium sales history
is included in the following
B and T World Seeds flowering plant categories.
|1||: Stock list|
|Our stock changes almost every day, with seeds arriving and being shipped all over the world.|
We only stock long lived seeds, except for a few species that are always in demand.
Seeds that are not in stock are acquired fresh when ordered.
|9||: Alpine and Rock Garden Seed List (Hardy and Tender)|
|43||: Herbaceous Border Plant Seed List|
|78||: South Eastern European Native and Introduced Plants|
|80||: South West European Native and Introduced Plants|
|130||: Ground cover Plant Seed List (see also List 133)|
|700||: Humming Bird Nectar Plants|
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 nummularium seeds will usually germinate in 25 days, if conditions are favourable.
Sow Hypericum nummularium seeds on the surface of moist compost, use a translucent cover to allow light in and to keep the compost humid and warm (do not place in direct sunlight)
Pre-treatment with gibberellic acid and/or sulphuric acid significantly improves germination. Pre-treatment with hot water at 50°C may help.