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Coreopsis grandiflora Sunray

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Approximately 400.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.

Coreopsis grandiflora Sunray
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


Coreopsis grandiflora Sunray
1 gram for 8 Euros
available for preorder


Coreopsis grandiflora Sunray
10 gram for 42 Euros
available for preorder


Coreopsis grandiflora Sunray
100 gram for 102 Euros
available for preorder


Coreopsis grandiflora Sunray
250 gram for 227 Euros
available for preorder


Coreopsis grandiflora Sunray
500 gram for 425 Euros
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Coreopsis grandiflora Sunray
1000 gram for 814 Euros
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Coreopsis grandiflora Sunray

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 23943

The average, annual, minimum temperature zone where Coreopsis grandiflora Sunray is cold hardy
USDA Zone:7 0° to 10°F   (-17.5° to -12.5°C)
Type of plant - annual or perennial, depending on climate
Flower or inflorescence: deep YELLOW, double - semi.
Foliage: base-branching stems
Height, in meters: 0.9
Height, in feet: 2.97
Coreopsis grandiflora Sunray sales history

Common names for Coreopsis grandiflora Sunray:

Coreopsis Sunray,  Sonnenstrahl, 


Coreopsis grandiflora Sunray is included in the following
B and T World Seeds flowering plant categories.

43:   Herbaceous Border Plant Seed List
44:   Cut flowers Commercial and other Recommended Varieties
45:   Bee and Butterfly Attracting also Honey and Pollen Plant Seeds
53:   Bedding Plant Seed List
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
698:   First Year Flowering Perennials
708:  Compositae
952:   Wholesale Selection


Happier and Healthier Plants, Naturally

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


Germination guide for Coreopsis grandiflora Sunray

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.

Coreopsis grandiflora Sunray seeds will usually germinate in 20-25 days.
Normally will only germinate with light so surface sow. Sow Coreopsis grandiflora Sunray seeds on the surface of a Well drained seed sowing mix at about 12-20°C.

Annuals can be sown In situ


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