The douglas fir (Pseudotsuga menziesii) is a towering evergreen of western North America, and not a true fir. This guide covers growing one from seed, plus our own grow log from the Spring Mason kit.
Quick facts
| Botanical name | Pseudotsuga menziesii |
|---|---|
| Native range | Pacific Coast from central British Columbia to central California, and the Rocky Mountains south to Mexico |
| Mature size | 80 to 200 feet tall |
| Lifespan | Often 500 years or more |
| Sunset climate zones | 1-10, 14-17 |
| Annual growth rate | [Your data: 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 douglas fir 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.]
Douglas fir seedlings like cool, evenly moist conditions and bright light.
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.]
Despite the name, Douglas fir is not a true fir. Its genus, Pseudotsuga, means false hemlock, and its cones have distinctive three-pointed bracts.
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? Douglas fir suits Sunset climate zones 1-10 and 14-17. [Your data: climate guidance and timing.]
Sources
- Oregon State University Landscape Plants, Pseudotsuga menziesii (size, native range)
- Desert-Tropicals.com, Pseudotsuga menziesii (climate zones)