Pinus cembra

Bloom Color: Purple, Red, Yellow. Main Bloom Time: Early spring, Late spring, Mid spring. Form: Columnar, Pyramidal.

Pinus cembra is an evergreen Tree growing to 15 m by 6 m at a slow rate.
It is hardy to zone 4. It is in leaf all year, in flower from May to June, and the seeds ripen in September. The species is monoecious and is pollinated by Wind. The plant is not self-fertile.
Suitable for: light , medium and heavy soils, prefers well-drained soil and can grow in heavy clay and nutritionally poor soils. Suitable pH: acid and neutral soils. It can grow in semi-shade or no shade. It prefers dry or moist soil and can tolerate drought. The plant can tolerates strong winds but not maritime exposure.

Landscape Uses:Screen, Specimen. Thrives in a light well-drained sandy or gravelly loam. Dislikes poorly drained moorland soils. Established plants tolerate drought. Succeeds in most situations, flourishing on N. facing slopes and in moist heavy clay soils. Grows best in the cooler wetter areas of Britain. A very hardy plant tolerating temperatures down to about -30°c. The edible seeds are collected in large numbers in Siberia and are often exported. This species does not appear to be long lived or to produce its cones freely in S. Britain. It does not produce cones until it is 30 years old. The cones take three years to ripen and then fall from the tree with the seeds still inside. The seed is often eaten by squirrels etc before it can fall to the ground. The cones do not open, seed is extracted by breaking up the soft scales of the cone. Plants are strongly outbreeding, self-fertilized seed usually grows poorly. They hybridize freely with other members of this genus. Slow growing in cultivation, plants usually make less than 30 cm increase in height per year even when young. Leaf secretions inhibit the germination of seeds, thereby inhibiting the growth of other plants below the tree. Plants in this genus are notably susceptible to honey fungus. Special Features:Not 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.