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Aster tongolensis

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Approximately 750.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.

Aster tongolensis
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 '0.50 gram', not as packet.
1 packet for 8 Euros
available for preorder


Aster tongolensis
1 gram for 11 Euros
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Aster tongolensis
10 gram for 81 Euros
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Aster tongolensis
100 gram for 628 Euros
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Aster tongolensis

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 3338

The average, annual, minimum temperature zone where Aster tongolensis is cold hardy
USDA Zone:8 10° to 20°F   (-12° to -6.5°C)
Type of plant - perennial
Flower or inflorescence: large LAVENDER - VIOLET-BLUE
Foliage: oblong-lance., to 9cm.
Height, in meters: 1
Height, in feet: 3.30
Aster tongolensis sales history

Synonyms (alternative names) for Aster tongolensis:
Aster subcaeruleus, Aster subcoeruleus, 

Common names for Aster tongolensis:

Dunkelviolett,  Wartburgstern, 


Aster tongolensis is included in the following
B and T World Seeds flowering plant categories.

9:   Alpine and Rock Garden Seed List (Hardy and Tender)
38:   Indian Native and Introduced Plants
43:   Herbaceous Border Plant Seed List
44:   Cut flowers Commercial and other Recommended Varieties
51:   Chinese 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.
246:  Asteraceae
708:  Compositae
805:   Eco roof plant seed


Happier and Healthier Plants, Naturally

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


Germination guide for Aster tongolensis

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.

Aster tongolensis seeds will usually germinate in 10-14 days.
Sow Aster tongolensis seeds about 2mm deep in a Well drained seed sowing mix at about 20°C.

Aster tongolensis 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

Pre-chill perennial asters (Pre-chill 2 weeks).


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