Pinus strobus
| Pinus strobus | |
| Light: |  |
| Moisture: |   |
| Soil pH: | 5.6-7.3 |
| Evergreen Cross Pollinated | |
| Height: | 66' |
| Width: | 16' |
| Speed: | Fast |
| Native to: | |
| Edible Rating: |  |
| Medicinal Rating: |  |
| Tea: | Yes |
 | |
Pinus strobus (common name: white pine)
Propagation: 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[1]. Plant seedlings out into their permanent positions as soon as possible and protect them for their first winter or two[2]. Plants have a very sparse root system and the sooner they are planted into their permanent positions the better they will grow[K]. Trees should be planted into their permanent positions when they are quite small, between 30 and 90cm[3]. 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[K]. Larger trees will check badly and hardly put on any growth for several years. This also badly affects root development and wind resistance[3].
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[4].
Cultivation: Thrives in a light well-drained sandy or gravelly loam[5][2]. Dislikes poorly drained moorland soils[5]. Established plants tolerate drought[3]. Intolerant of atmospheric pollution[6].
The white pine is a very important timber crop in its native range, the huge stands that existed before the Europeans went to N. America have been largely cut down[7]. It is a fast-growing and fairly long-lived tree[7] that is often cultivated as a timber tree, especially in central Europe[8]. Young trees grow very vigorously with new shoots of up to 1 metre common. Growth slows and almost ceases by the time the tree is 20 metres tall[9].
Trees can produce cones when 5 - 10 years old, but reliable seed production takes another 10 years[7]. Good crops are produced every 3 - 5 years in the wild, with little seed in the intervening years[7]. The cones are 10 - 20cm long and take 2 years to mature[10][7], they open and shed their seed in late summer whilst still attached to the tree[10][11]. Plants often self-sow in Britain[9].
Plants are strongly outbreeding, self-fertilized seed usually grows poorly[3]. They hybridize freely with other members of this genus[3].
Trees have a very thin bark, which makes them particularly susceptible to forest fires[11].
This species is very susceptible to white pine blister rust, it should not be grown near any gooseberries or currants (Ribes species) since these plants can act as vectors for the disease[5][12]. Plants are also subject to aphid damage[5].
Plants in this genus are notably susceptible to honey fungus[3].
Leaf secretions inhibit the germination of seeds, thereby reducing the amount of plants that can grow under the trees[13].
Range: Eastern N. America - Newfoundland to Manitoba, south to Georgia.
Habitat: Woods, especially on sandy drift soils or fertile well-drained soils, sometimes on river banks and rarely in swamps[10]. Often forming dense forests[14].
Edibility: Seed - raw or cooked[15][16]. Rather small and fiddly, it is only about 6mm long[3]. The seed is mainly used as a flavouring in cooking[17].
The fresh needles are brewed into an aromatic tea that is rich in vitamins A and C[18]. A refreshing drink is made from the leaves[16].
An acceptable candy is made by boiling the tender new shoots in syrup[18].
The sticky amber sap can be used for chewing[15][16].
A vanillin flavouring is obtained as a by-product of other resins that are released from the pulpwood[3].
The firm unexpanded male cones can be boiled and used as a flavouring[19][18]. A pleasant sweet flavour[20].
Inner bark - raw or cooked. A sweet flavour[21][16][22][17]. There are no more details but inner bark is often dried, ground into a powder and then used as a thickener in soups etc or added to cereals when making bread.
Medicinal: White pine was employed medicinally by several native North American Indian tribes who valued it especially for its antiseptic and vulnerary qualities, using it extensively in the treatment of skin complaints, wounds, burns, boils etc[20]. It is also very beneficial to the respiratory system and so was used in treating coughs, colds, influenza and so on[20].
The turpentine obtained from the resin of all pine trees is antiseptic, diuretic, rubefacient and vermifuge[23]. It is a valuable remedy used internally in the treatment of kidney and bladder complaints and is used both internally and as a rub and steam bath in the treatment of rheumatic affections[23]. It is also very beneficial to the respiratory system and so is useful in treating diseases of the mucous membranes and respiratory complaints such as coughs, colds, influenza and TB[23]. Externally it is a very beneficial treatment for a variety of skin complaints, wounds, sores, burns, boils etc and is used in the form of liniment plasters, poultices, herbal steam baths and inhalers[23]. A poultice of pitch has been used to draw out toxins from boils and reduce the pain[20].
The dried inner bark is demulcent, diuretic and expectorant[23]. An infusion was used as a treatment for colds[17] and it is still used as an ingredient in commercial cough syrups, where it serves to promote the expulsion of phlegm[17]. A poultice made from the pounded inner bark is used to treat cuts, sores and wounds[17]. The wetted inner bark can be used as a poultice on the chest in treating strong colds[20]. The dried inner bark contains 10% tannin, some mucilage, an oleoresin, a glycoside and a volatile oil[17].
A tea made from the young needles is used to treat sore throats[17]. It is a good source of vitamin C and so is effective against scurvy[17].
An infusion of the young twigs has been used in the treatment of kidney disorders and pulmonary complaints[20].
The powdered wood has been used as a dressing on babies chaffed skin, sores and improperly healed navels[20].
Usage: A tan or green dye is obtained from the needles[24].
The needles contain a substance called terpene, this is released when rain washes over the needles and it has a negative effect on the germination of some plants, including wheat[25].
Oleo-resins are present in the tissues of all species of pines, but these are often not present in sufficient quantity to make their extraction economically worthwhile[26]. The resins are obtained by tapping the trunk, or by destructive distillation of the wood[23][26]. In general, trees from warmer areas of distribution give the higher yields[26]. Turpentine consists of an average of 20% of the oleo-resin[26] and is separated by distillation[23][26]. Turpentine has a wide range of uses including as a solvent for waxes etc, for making varnish, medicinal etc[23]. Rosin is the substance left after turpentine is removed. This is used by violinists on their bows and also in making sealing wax, varnish etc[23]. Pitch can also be obtained from the resin and is used for waterproofing canoes, containers etc, as a wood preservative etc[20].
Wood - straight and close-grained, light, soft, not strong, works easily and takes an excellent natural or painted finish[27][28][10][29][11][7]. It weighs 24lb per cubic foot[14]. A very valuable timber[14], the wood is especially suited for making the masts of ships[23] and is also used for lumber, cheap furniture, house interiors, construction etc[27][28][10][29][11][7].
Pollinators: Wind
Soil: Can grow in light and medium soils.
Drainage: Prefers well drained soil.
Pollution: Does not tolerate environmental pollution.
In Leaf: Evergreen
Seed Ripens: Mid Fall
Flower Type: Monoecious
Known Hazards: The wood, sawdust and resins from various species of pine can cause dermatitis in sensitive people[30].
Links
References
- ↑ McMillan-Browse, Philip. Hardy Woody Plants from Seed. Grower Books, 1985.
- ↑ 2.0 2.1 Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ Rushforth, Keith. Conifers. Batsford, 1991.
- ↑ 5.0 5.1 5.2 5.3 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
- ↑ Brickell, Christopher. The RHS Gardener's Encyclopedia of Plants and Flowers. Dorling Kindersley Publishers, 1990.
- ↑ 7.0 7.1 7.2 7.3 7.4 7.5 7.6 Elias, Thomas. The Complete Trees of North America. Van Nostrand Reinhold, 1980.
- ↑ Tutin, Tom et al.. Flora Europaea. Cambridge University Press, 1964.
- ↑ 9.0 9.1 Mitchell, Alan. Conifers in the British Isles. Stationery Office Books, 1975.
- ↑ 10.0 10.1 10.2 10.3 10.4 Sargent, Charles. Manual of the Trees of North America. Dover, 1965.
- ↑ 11.0 11.1 11.2 11.3 Lauriault, Jean. Identification Guide to the Trees of Canada. Fitzhenry and Whiteside, 1989.
- ↑ Royal Horticultural Society. The Plantsman Vol. 2. 1980 - 1981. Royal Horticultural Society, 1980.
- ↑ Philbrick, Helen and Richard Gregg. Companion Plants. Watkins, 1979.
- ↑ 14.0 14.1 14.2 Britton, Nathaniel and Addison Brown. An Illustrated Flora of the Northern United States and Canada. Dover Publications, 1970.
- ↑ 15.0 15.1 Kavasch, Barrie. Native Harvests. Vintage Books, 1979.
- ↑ 16.0 16.1 16.2 16.3 McPherson, Alan and Sue McPherson. Wild Food Plants of Indiana. Indiana University Press, 1977.
- ↑ 17.0 17.1 17.2 17.3 17.4 17.5 17.6 17.7 Weiner, Michael. Earth Medicine, Earth Food. Ballantine Books, 1980.
- ↑ 18.0 18.1 18.2 Facciola, Stephen. Cornucopia - A Source Book of Edible Plants. Kampong Publications, 1990.
- ↑ Kunkel, Günther. Plants for Human Consumption. Koeltz Scientific Books, 1984.
- ↑ 20.0 20.1 20.2 20.3 20.4 20.5 20.6 20.7 Moerman, Daniel. Native American Ethnobotany. Timber Press, 1998.
- ↑ Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
- ↑ Yanovsky, Elias. Food Plants of the North American Indians Publication 237. US Department of Agriculture.
- ↑ 23.0 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 Grieve, Margaret. A Modern Herbal. Penguin, 1984.
- ↑ Grae, Ida. Nature's Colors. MacMillan Publishing, 1974.
- ↑ Allardice, Pamela. A-Z of Companion Planting. Cassell Publishers, 1993.
- ↑ 26.0 26.1 26.2 26.3 26.4 Howes, Frank. Vegetable Gums and Resins. Chronica Botanica, 1949.
- ↑ 27.0 27.1 Uphof, Johannes. Dictionary of Economic Plants. Weinheim, 1959.
- ↑ 28.0 28.1 Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.
- ↑ 29.0 29.1 Hill, Albert. Economic Botany. The Maple Press, 1952.
- ↑ Foster, Steven and Billy Tatum. Medicinal Plants of Eastern and Central North America. Houghton Mifflin, 1990.