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Hypericum perforatum

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Approximately 10000.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.

1 packet for 4 Euros
in stock *     Hypericum perforatum     * in stock

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We do not know how many seeds there will be in a packet !
If we know the quantity of seeds, we list the quantity as: examples '200 seeds' or '15 gram', not as packet.

1 gram for 8 Euros
in stock *     Hypericum perforatum     * in stock

Stock items purchased using the shopping cart
are available for immediate shipping

Hypericum perforatum
10 gram for 12 Euros
available for preorder

Hypericum perforatum
50 gram for 28 Euros
available for preorder

Hypericum perforatum
100 gram for 52 Euros
available for preorder

Hypericum perforatum
500 gram for 257 Euros
available for preorder

Hypericum perforatum
1000 gram for 440 Euros
available for preorder

Hypericum perforatum
2500 gram for 1000 Euros
available for preorder

Hypericum perforatum
10000 gram for 2777 Euros
available for preorder

Hypericum perforatum
25000 gram for 4500 Euros
available for preorder

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Hypericum perforatum

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 1429

The average, annual, minimum temperature zone where Hypericum perforatum is cold hardy
USDA Zone:3 -40° to -30°F   (-40° to -34.5°C)
Type of plant - perennial
Flower or inflorescence: YELLOW, 1.5-3.5cm. dia., stellate (drill 2-6 kg.-ha)
Fruit: capsule......(sow on moist sandy soil in Spring, seeds need light to germ.)
Foliage: narr. ovate., 8-30mm. long, glossy...nice border plant
Height, in meters: 1.1
Height, in feet: 3.63
Hypericum perforatum seeds may be subject to seasonal availability
Parts of Hypericum perforatum are considered toxic.

Synonyms (alternative names) for Hypericum perforatum:
Hypericum perforatum v perfora, 

Common names for Hypericum perforatum:

(tox:hypericin & hyperforin, phenolics, terpenoids,  (tox:WHO III),  Bassant,  Binbirdelikotu,  Common St. John's Wort,  Eala bhuidhe,  Eala bhuidhe,  Fleur de Notre Dame,  Goatweed,  Herbe de St.Jean,  Herbe Sanctae Mariae,  Hiperico,  Johanneskruid,  Johanniskraut, echtes,  Klamath Weed,  Millepertuis perfore,  Perforate St. John's Wort,  St. John's-Wort,  St.John's Grass,  St.John's Wort,  St.Johns Wort,  Tipton Weed,  Tupfel- Johanniskraut, 

Hypericum perforatum 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.
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Some of the deadliest known poisons are found in plants. Some major food plants, eaten by millions of people every day, have toxic parts.
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Germination guide for Hypericum perforatum

These notes are a general guide, it is recommended to check specialist literature for some of the more unusual seeds in our lists.
Seed Germination Theory and Practice by Professor Norman C. Deno
Some knowledge about growing from seed is necessary to germinate even the easiest seeds. Most seeds require humidity to germinate, even desert plants like Welwitschia mirabilis 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.
Some seeds need to be in the light (surface sown) or in the dark (sown deep enough to receive little or no light) to germinate. A rule of thumb is to cover the seeds their own width deep in the growing medium, but some seeds prefer to be sown much deeper, and some fairly large seeds like to be surface sown (or higher).
Many seeds germinate best at certain temperatures, some will germinate at a comparatively wide range of temperatures, yet others need fluctuating temperatures.
Almost all seeds are waiting in a dormant state for some outside stimulus to break their dormancy, some just need sufficiently high ambiant humidity, others need scarification, vernalization or to be passed through the intestines of an animal.

Hypericum perforatum seeds will usually germinate in 30-90 days, even under good conditions germination may be erratic.
Sow Hypericum perforatum seeds about 1mm deep in a Well drained seed sowing mix at about 10°C.

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