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Penstemon hartwegii Scarlet Queen

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Approximately 3000.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.

Penstemon hartwegii Scarlet Queen
25 gram for 36 Euros
available for preorder


Penstemon hartwegii Scarlet Queen
100 gram for 127 Euros
available for preorder


Penstemon hartwegii Scarlet Queen
250 gram for 310 Euros
available for preorder


Penstemon hartwegii Scarlet Queen
500 gram for 607 Euros
available for preorder


Penstemon hartwegii Scarlet Queen
1000 gram for 934 Euros
available for preorder


Penstemon hartwegii Scarlet Queen
5000 gram for 4360 Euros
available for preorder


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Penstemon hartwegii Scarlet Queen

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 24206

The average, annual, minimum temperature zone where Penstemon hartwegii Scarlet Queen is cold hardy
USDA Zone:9 20° to 30°F   (-6.5° to -1°C)
Type of plant - annual or perennial, depending on climate
Flower or inflorescence: SCARLET, WHITE spotted throat
Height, in meters: 0.7
Height, in feet: 2.31
Penstemon hartwegii Scarlet Queen sales history

Common names for Penstemon hartwegii Scarlet Queen:

Penstemon Scharlachkoenigin, 


Penstemon hartwegii Scarlet Queen is included in the following
B and T World Seeds flowering plant categories.

31:   House and Container Plant Seed List
43:   Herbaceous Border Plant Seed List
44:   Cut flowers Commercial and other Recommended Varieties
62:   Mexican Native and Introduced Plants
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.
564:  Plantaginaceae
618:  Scrophulariaceae
952:   Wholesale Selection


Happier and Healthier Plants, Naturally

plant-fungus communities, for improved nutrition, and disease and drought resistance.


Germination guide for Penstemon hartwegii Scarlet Queen

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.

Penstemon hartwegii Scarlet Queen seeds will usually germinate in 18-21 days.
Normally will only germinate with light so surface sow. Sow Penstemon hartwegii Scarlet Queen seeds about 1mm deep in a Well drained seed sowing mix at about 15°C.

Penstemon hartwegii Scarlet Queen 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".
Seed Germination Theory and Practice by Professor Norman C. Deno


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