Thrives in a light well-drained sandy or gravelly loam. The trees have an extensive root system and are well adapted for growing in poor sandy soils, they are often used as a pioneer tree for reforestation. Dislikes poorly drained moorland soils and shady positions. Starts away well on almost any soil, whether poorly drained or shallow and dry. Established plants tolerate drought. A fast growing tree when young, but growth soon slows down and the tree is short-lived in Britain with no tree known to be older than 75 years. New shoots can be almost 1 metre long, though the tree remains spindly. An open-topped tree, though plants sometimes have a shrubby habit of growth. They can start producing seed when only a few years old. The cones are 4- 5cm long. They ripen in their second year but can remain un-opened on the tree for a number of years, only opening and shedding their seed after a forest fire has heated them to at least 50°c. This makes them one of the first colonizers of burnt land. Cultivated for timber in C. Europe. Plants are strongly outbreeding, self-fertilized seed usually grows poorly. They hybridize freely with other members of this genus. This species hybridises in the wild with P. contorta where their ranges overlap. There are several named varieties selected for their ornamental value. 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.
Seed - raw or cooked. Rich in oil with a slightly resinous flavor. They are very small and fiddly to utilize, being only 2 - 3mm long. Young cones - cooked. Inner bark. No more information is given, but the bark can usually be eaten raw or cooked. It can also be dried, then ground into a powder and used as a thickener in soups or can be mixed with cereal flours when making bread etc. A refreshing drink is made from the leaves. A vanillin flavoring is obtained as a by-product of other resins that are released from the pulpwood.
It is best to sow the seed in individual pots in a cold frame as soon as it is ripe if this is possible otherwise in late winter. A short stratification of 6 weeks at 4°c can improve the germination of stored seed. Plant seedlings out into their permanent positions as soon as possible and protect them for their first winter or two. Plants have a very sparse root system and the sooner they are planted into their permanent positions the better they will grow. Trees should be planted into their permanent positions when they are quite small, between 30 and 90cm. We actually plant them out when they are about 5 - 10cm tall. So long as they are given a very good weed-excluding mulch they establish very well. Larger trees will check badly and hardly put on any growth for several years. This also badly affects root development and wind resistance. Cuttings. This method only works when taken from very young trees less than 10 years old. Use single leaf fascicles with the base of the short shoot. Disbudding the shoots some weeks before taking the cuttings can help. Cuttings are normally slow to grow away.
Barren sandy or rocky soils, sometimes forming extensive forests.
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