The giant sequoia (Sequoiadendron giganteum) is the largest tree on Earth by volume. This guide covers growing one from seed, plus our own grow log from the Spring Mason kit.
Quick facts
| Botanical name | Sequoiadendron giganteum |
|---|---|
| Native range | Western slopes of California's Sierra Nevada |
| Mature size | Over 250 feet tall in the wild |
| Lifespan | 2,000 to 3,000 years |
| Sunset climate zones | 1-9, 14-23 |
| Annual growth rate | 2 to 4 ft per year |
| Seed source | [State] [Year] |
| Time to germinate | [Your data: days from sowing to sprout in the kit] |
| Difficulty | [Your rating: easy / moderate / challenging] |
Seed and germination
- Scarification (soaking): [Your data]
- Cold Stratification: [Your data]
- Germination: [Your data]
Watch our giant sequoia seeds go from sowing to sprout on our YouTube channel, @SpringMasonTV.
Growing in the kit
[Your data: how the kit is set up, how much water the reservoir holds, how often to refill it, where to place it for light, and what temperatures work.]
Keep the medium moist but not soggy, with bright light and good airflow.
Year one and beyond
[Your data: milestones, such as first true leaves, height at 4, 8 and 12 weeks, and when a seedling is ready to move to a larger pot or the ground.]
In the wild, giant sequoias grow in scattered groves in the Sierra Nevada above about 4,500 feet. Give a young tree plenty of room to grow.
Our grow log
| Date | Stage | Height | Notes |
|---|---|---|---|
| [Date sown] | Sown | [Your notes] | |
| [Date] | Germinated | [Your notes] | |
| [Date] | [Stage] | [Height] | [Your notes] |
[Time-lapse video goes here.]
Troubleshooting and FAQ
My seeds are not sprouting. Not every seed is viable. [Your data: how many seeds are in the vial and the germination rate we see.]
My seedling is collapsing or has gray mold. Seedlings are prone to damping-off, a fungal problem linked to excess moisture and poor airflow. [Your data: what to look for and what to do.]
Can I plant it outside? Giant sequoias suit Sunset climate zones 1-9 and 14-23. [Your data: climate guidance and timing.]
Sources
- Oregon State University Landscape Plants, Sequoiadendron giganteum (size, native range, cones)
- Gardenia.net, Sequoiadendron giganteum (growth rate, lifespan, climate zones)