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Helianthus annuus f1 Crimson Blaze pollen free

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Helianthus annuus f1 Crimson Blaze pollen free



Elements of Structural and Systematic Botany
B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 71725

Type of plant - annual
Flower or inflorescence: CRIMSON RED
Height, in meters: 2
Height, in feet: 6.60
Helianthus annuus f1 Crimson Blaze pollen free sales history

Common names for Helianthus annuus f1 Crimson Blaze pollen free:

Pollenfree Sunflower Crimson Blaze, 


Helianthus annuus f1 Crimson Blaze pollen free is included in the following
B and T World Seeds flowering plant categories.

44:   Cut flowers Commercial and other Recommended Varieties
53:   Bedding Plant Seed List
161:   Edible Flowers
Some flowers are poisonous if not cooked. Some are only edible while in bud. Identify and correctly prepare all flowers before eating. Do not eat flowers that have been sprayed with weedkiller or other chemicals.
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
952:   Wholesale Selection


Happier and Healthier Plants, Naturally

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


Germination guide for Helianthus annuus f1 Crimson Blaze pollen free

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.

Helianthus annuus f1 Crimson Blaze pollen free seeds will usually germinate in 10-14 days.
Sow Helianthus annuus f1 Crimson Blaze pollen free seeds about 6mm deep in a Peaty seed sowing mix at about 20-30°C.

Can be sown in situ.


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