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SEQUOIADENDRON giganteum syn. SEQUOIA gigantea 5g
Giant Redwood
Family: Cupressaceae
Sub-family: Sequoioideae
Characteristics: Evergreen tall tree 50-85m trunk diameter 6-8m
Seed per packet: Approx.15
Seed per gram: Approx. 190
Sequoia gigantea is one of the world's largest trees in terms of circumference and volume. It is also a very long-lived tree in the wild, specimens have been found that are 3500 years old.
The Giant Redwood grows in more or less isolated groves on the Western slopes of the Sierra Nevada in Central California, in a narrow belt approximately 260 miles long.
Native to central California.
Prefers deep cool soil in an open sunny position frost resistant but drought tender.
Grow notes:
Cold stratification is recommended. YouTube Cold Stratification Video
Cold treatment may not be critical for germination to occur in colder regions but should give increased germination rates.
This can be replicated by cold stratification in the refrigerator for 6-8 weeks. Alternatively overwintering in the garden in cold climates will assist germination.
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Overwintering in the garden in cold climates:
- Soak in water overnight.
- Sow the seed on the surface and cover lightly.
- Water with a fine mist spray to avoid disturbance of the seed.
- Ensure the mix is moist but not waterlogged.
- Leave in the garden over winter.
Cold stratification in the refrigerator:
- Place the seed in a plastic bag with some growing mix.
- Add a little water to mix to make it damp.
- Place the bagged container in the refrigerator for 6-8 weeks.
- Germination generally occurs in 14-28 days when moved to warmer temperatures after the period of cold treatment.
General note: Seeds of many plants are dormant and require specific conditions or pre-treatment for germination.
Please do not be too hasty to discard seed that does not germinate, seeds will often lay dormant until the conditions are similar to their natural requirements for germination to occur. Containers put to one side will often surprise long after they were discarded.
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