Terms of Trade

Contact - eMail

Catalogues




log in or create an account


Printer ready version of Helianthus annuus tall ornamental mix organic seed information

Helianthus annuus tall ornamental mix organic seed


Sorry, seeds of Helianthus annuus tall ornamental mix organic seed are not currently available
Please click here to add "Helianthus annuus tall ornamental mix organic seed" to our Wants List.
Or try another search.

Helianthus annuus tall ornamental mix organic seed

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 447670

Type of plant - annual
Flower or inflorescence: MIX
Height, in meters: 3
Height, in feet: 9.90
Helianthus annuus tall ornamental mix organic seed sales history


Helianthus annuus tall ornamental mix organic seed 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
148:   Organic Seeds from Certified Sources
Organic farming/gardening should "preserve the integrity, stability and beauty of the biotic community".
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 tall ornamental mix organic seed

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 tall ornamental mix organic seed seeds will usually germinate in 10-14 days.
Sow Helianthus annuus tall ornamental mix organic seed seeds about 6mm deep in a Peaty seed sowing mix at about 20-30°C.

Can be sown in situ.


Terms of Trade

Price-Codes

Contact - eMail

Other Seed Lists

Botanical name Search

Common Name Search