Towering conifer of western North America reaching 75 m or more, with strong, stiff, structural timber that is the principal framing lumber of North American house construction (sold as "Douglas-fir" or "Oregon pine").
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 4–6 | −34.4 °C to −17.8 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H7 | down to −20 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 4–7 | −29 °C to −7 °C | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 1–4 | −15 °C to 5 °C | Plant tolerates down to this zone |
Growing notes
- Principal structural framing timber of North American (and increasingly European) house construction — strength-to-weight ratio rivals any softwood
- Not a true fir (Abies) — the binomial Pseudotsuga reflects this, "false hemlock"
- Excellent tall conifer windbreak in cool wet temperate climates — long lived and steady
- Tallest specimens of the species are among the tallest trees ever measured, second only to coast redwood
Categories
Related plants
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