Pinus flexilis

Bloom Color: Yellow. Main Bloom Time: Early spring, Late spring, Mid spring. Form: Oval, Pyramidal.

Pinus flexilis is an evergreen Tree growing to 25 m at a medium rate.
It is hardy to zone 3. It is in leaf all year, in flower from May to June, and the seeds ripen from September to October. The species is monoecious and is pollinated by Wind. The plant is not self-fertile.
Suitable for: light and medium soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: acid and neutral soils. It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought. The plant can tolerates strong winds but not maritime exposure.

Landscape Uses:Pest tolerant, Specimen. Thrives in a light well-drained sandy or gravelly loam. Dislikes poorly drained moorland soils. Established plants tolerate drought. A fairly wind-resistant species, the plants often colonise exposed mountain slopes in the wild, their deep taproot anchoring them firmly. A very cold-tolerant plant when fully dormant. A long-lived but slow-growing tree in the wild. Growth in Britain can be fairly fast, over 30cm a year has been recorded. It is slow to get started but then grows away quite well. It only makes a small tree in cultivation. Seed production in the wild consists of a cycle of one good year followed by several years of low crops. Leaf secretions inhibit the germination of seeds, thereby inhibiting the growth of other plants below the tree. The branches are very flexible. The cones are 7 - 25cm long, they open and shed their seed whilst still attached to the tree. Plants are strongly outbreeding, self-fertilized seed usually grows poorly. They hybridize freely with other members of this genus. This species is closely allied to P. albicaulis, differing mainly in the cones. Plants in this genus are notably susceptible to honey fungus. Special Features:Attracts birds, Attractive foliage, North American native, Inconspicuous flowers or blooms. The plant is heat tolerant in zones 7 through 1. .
At this temperature, many plants begin to suffer physiological damage. Heat Zones range from 1 to 12 .
For example Heat Zone. 11-1 indicates that the plant is heat tolerant in zones 11 through 1.) For polyculture design as well as the above-ground architecture information on the habit and root pattern is also useful and given here if available. The plant growth habit is a standard with a non-suckering single trunk . An evergreen. The root pattern is a tap root similar to a carrot going directly down .