The Great Basin bristlecone pine (Pinus longaeva) is among the longest-lived organisms on Earth. [Your data: confirm the species of your seed.] This guide covers growing one from seed, plus our own grow log from the Spring Mason kit.
Quick facts
| Botanical name | Pinus longaeva |
|---|---|
| Native range | High-elevation mountains of California, Nevada, and Utah, roughly 5,000 to 10,000 feet |
| Mature size | Up to about 60 feet tall at lower elevations, and about half that at high elevations |
| Lifespan | Some trees are more than 5,000 years old |
| Sunset climate zones | [Verify: Sunset zones] |
| Annual growth rate | Extremely slow. In harsh conditions a 40-year-old tree may not reach 6 inches. |
| 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 bristlecone pine 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.]
Bristlecone pine is adapted to cold winters, hot summers, and low precipitation.
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.]
Growth is extremely slow, so set expectations accordingly. In harsh conditions height growth can stop while the trunk keeps thickening.
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? Bristlecone pines grow wild at high elevation in cold, dry mountain sites. [Your data: climate guidance and timing.]
Sources
- National Wildlife Federation, Great Basin Bristlecone Pine (native range, size, lifespan, growth rate)
- Earthpedia, Pinus longaeva (elevation, habitat)