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Rhododendron decorum

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Rhododendron decorum
1.75 gram for 63 Euros
available for preorder


Rhododendron decorum
28 gram for 601 Euros
available for preorder



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Rhododendron decorum

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

B and T World Seeds' reference number: 14634

The average, annual, minimum temperature zone where Rhododendron decorum is cold hardy
USDA Zone:7 0° to 10°F   (-17.5° to -12.5°C)
Type of plant - shrub to tree
Flower or inflorescence: frag. WHITE to pale PINK (spots), 5-11cm. funnel-camp., cluster 8-10
Foliage: obl.-ell., 6-20cm. long
Height, in meters: 6
Height, in feet: 19.80
Rhododendron decorum sales history
Parts of Rhododendron decorum are considered toxic.


Rhododendron decorum is included in the following
B and T World Seeds flowering plant categories.

10:   Rhododendron and Azalea Species and Hybrid Seed List
40:   Shrub Seed List, Hardy and Tender
51:   Chinese Native and Introduced Plants
55:   Fragrant or Aromatic Flower or Foliage Plant Seeds
104:   South East Asian Native Plant Seeds
131:   Toxic Plants
Some of the deadliest known poisons are found in plants. Some major food plants, eaten by millions of people every day, have toxic parts.
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.
379:  Ericaceae


Happier and Healthier Plants, Naturally

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


Germination guide for Rhododendron decorum

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.

Rhododendron decorum seeds will usually germinate in 50-90 days, even under good conditions germination may be erratic.
Normally will only germinate with light so surface sow. Sow Rhododendron decorum seeds on the surface of a Acid Peat seed sowing mix at about 15°C.

Rhododendron decorum seeds will mostly germinate as the weather warms up in Spring, some may germinate during the Summer or Autumn but are more likely to stay dormant until the following Spring.

Keep shaded from direct sun.


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