If you would like to support this site, please consider Donating.
Useful Temperate Plants

Pinus flexilis

E.James

Pinaceae

+ Synonyms

Pinus cembra flexilis (E.James) F.Sanders

Apinus flexilis (E.James) Rydb.

Pinus lambertiana brevifolia Hook.

Pinus novaemexicana P.Landry

Common Name: Limber Pine

No Image.

General Information

Pinus flexilis is an evergreen tree with a much-branched, conical crown that becomes rounded with age; it can grow up to 26 metres tall. The straight to contorted bole can be up to 200cm in diameter. Side branches are often persistent right down to the trunk base[
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
].
The plant is harvested from the wild for local use as a food, medicine and source of materials. It is little utilized for timber because of its strongly tapering trunk and much-branched form[
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
]. It is sometimes grown as an ornamental, there are some named varieties[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].
Pinus flexilis is experiencing declines due to White Pine Blister Rust and Mountain Pine Beetle. However, there have been no wide-scale extirpations of plant populations and the range of the species has not contracted since the last assessment. Therefore the plant is still classified as 'Least Concern' in the IUCN Red List of Threatened Species(2013)[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

Known Hazards

The wood, sawdust and resins from various species of pine can cause dermatitis in sensitive people[
222
Title
A Field Guide to Medicinal Plants. Eastern and Central N. America.
Publication
 
Author
Foster. S. & Duke. J. A.
Publisher
Houghton Mifflin Co.
Year
1990
ISBN
0395467225
Description
A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.
].

Botanical References

11
Title
Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
Publication
 
Author
Bean. W.
Publisher
Murray
Year
1981
ISBN
-
Description
A classic with a wealth of information on the plants, but poor on pictures.
,
60
Title
Vascular Plants of the Pacific Northwest.
Publication
 
Author
Hitchcock. C. L.
Publisher
University of Washington Press
Year
1955
ISBN
-
Description
A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.
,
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

Range

Western central N. America - Alberta to North Dakota, south to California, Arizona and New Mexico.

Habitat

High montane forests, often forming open forests in the sub alpine to alpine zones, often in semi-arid areas; growing at elevations from 1,500 - 3,600 metres[
60
Title
Vascular Plants of the Pacific Northwest.
Publication
 
Author
Hitchcock. C. L.
Publisher
University of Washington Press
Year
1955
ISBN
-
Description
A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.
,
82
Title
Manual of the Trees of N. America.
Publication
 
Author
Sargent. C. S.
Website
http://www.biodiversitylibrary.org/
Publisher
Dover Publications Inc. New York.
Year
1965
ISBN
0-486-20278-X
Description
Two volumes, a comprehensive listing of N. American trees though a bit out of date now. Good details on habitats, some details on plant uses. Not really for the casual reader. It can be downloaded from the internet.
,
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
]. Usually found on dry rocky ridges and peaks[
229
Title
The Complete Trees of N. America. Field Guide and Natural History.
Publication
 
Author
Elias. T.
Publisher
Van Nostrand Reinhold Co.
Year
1980
ISBN
0442238622
Description
A very good concise guide. Gives habitats, good descriptions, maps showing distribution and a few of the uses. It also includes the many shrubs that occasionally reach tree proportions.
].

Properties

Conservation StatusLeast Concern
Edibility Rating *  *  *
Medicinal Rating *  *
Other Uses Rating *  *
HabitEvergreen Tree
Height25.00 m
Growth RateMedium
PollinatorsWind
Self-fertileNo
Cultivation StatusOrnamental, Wild

Cultivation Details

Pinus flexilis is a very cold-hardy plant, able to tolerate temperatures down to around -35°c when fully dormant[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Pine species in general require a sunny position if they are to grow well and, whilst the different species have their own soil preferences, most will thrive in a light well-drained sandy or gravelly loam[
1
Title
RHS Dictionary of Plants plus Supplement. 1956
Publication
 
Author
F. Chittendon.
Publisher
Oxford University Press
Year
1951
ISBN
-
Description
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
,
11
Title
Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
Publication
 
Author
Bean. W.
Publisher
Murray
Year
1981
ISBN
-
Description
A classic with a wealth of information on the plants, but poor on pictures.
]. Dislikes poorly drained moorland soils[
1
Title
RHS Dictionary of Plants plus Supplement. 1956
Publication
 
Author
F. Chittendon.
Publisher
Oxford University Press
Year
1951
ISBN
-
Description
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
]. Established plants tolerate drought[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. A fairly wind-resistant species[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
], the plants often colonise exposed mountain slopes in the wild, their deep taproot anchoring them firmly[
226
Title
Identification Guide to the Trees of Canada
Publication
 
Author
Lauriault. J.
Publisher
Fitzhenry and Whiteside, Ontario.
Year
1989
ISBN
0889025649
Description
Very good on identification for non-experts, the book also has a lot of information on plant uses.
,
229
Title
The Complete Trees of N. America. Field Guide and Natural History.
Publication
 
Author
Elias. T.
Publisher
Van Nostrand Reinhold Co.
Year
1980
ISBN
0442238622
Description
A very good concise guide. Gives habitats, good descriptions, maps showing distribution and a few of the uses. It also includes the many shrubs that occasionally reach tree proportions.
].
A long-lived but slow-growing tree in the wild[
229
Title
The Complete Trees of N. America. Field Guide and Natural History.
Publication
 
Author
Elias. T.
Publisher
Van Nostrand Reinhold Co.
Year
1980
ISBN
0442238622
Description
A very good concise guide. Gives habitats, good descriptions, maps showing distribution and a few of the uses. It also includes the many shrubs that occasionally reach tree proportions.
]. Growth in Britain can be fairly fast, over 30cm a year has been recorded[
185
Title
Conifers in the British Isles.
Publication
 
Author
Mitchell. A. F.
Publisher
HMSO
Year
1975
ISBN
0-11-710012-9
Description
A bit out of date (first published in 1972), but an excellent guide to how well the various species of conifers grow in Britain giving locations of trees.
]. It is slow to get started but then grows away quite well[
120
Title
The Plantsman. Vol. 2. 1980 - 1981.
Publication
 
Author
?
Publisher
Royal Horticultural Society
Year
1980
ISBN
-
Description
Excerpts from the periodical giving cultivation details and other notes on some of the useful plants including Billardiera spp, Calochortus spp, Drimys spp.
]. It only makes a small tree in cultivation[
81
Title
Conifers.
Publication
 
Author
Rushforth. K.
Publisher
Christopher Helm
Year
1987
ISBN
0-7470-2801-X
Description
Deals with conifers that can be grown outdoors in Britain. Good notes on cultivation and a few bits about plant uses.
]. Seed production in the wild consists of a cycle of one good year followed by several years of low crops[
229
Title
The Complete Trees of N. America. Field Guide and Natural History.
Publication
 
Author
Elias. T.
Publisher
Van Nostrand Reinhold Co.
Year
1980
ISBN
0442238622
Description
A very good concise guide. Gives habitats, good descriptions, maps showing distribution and a few of the uses. It also includes the many shrubs that occasionally reach tree proportions.
].
The seed cones are 7 - 25cm long. They take two growing seasons to mature then open and shed their seed whilst still attached to the tree[
82
Title
Manual of the Trees of N. America.
Publication
 
Author
Sargent. C. S.
Website
http://www.biodiversitylibrary.org/
Publisher
Dover Publications Inc. New York.
Year
1965
ISBN
0-486-20278-X
Description
Two volumes, a comprehensive listing of N. American trees though a bit out of date now. Good details on habitats, some details on plant uses. Not really for the casual reader. It can be downloaded from the internet.
,
226
Title
Identification Guide to the Trees of Canada
Publication
 
Author
Lauriault. J.
Publisher
Fitzhenry and Whiteside, Ontario.
Year
1989
ISBN
0889025649
Description
Very good on identification for non-experts, the book also has a lot of information on plant uses.
,
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
].
This is one of several species of pine that depend upon a mutualistic relationship with a species of bird (in this case Clark's nutcracker, Nucifraga columbiana) to disperse its seed. The birds have powerfull beaks which enable them to extricate the seeds and crack the shells. They store many of the seeds at some distance from the parent plant - some of these seeds never get eaten and can germinate and grow into new trees[
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
].
Plants are strongly outbreeding, self-fertilized seed usually grows poorly[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. They hybridize freely with other members of this genus[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
This species is closely allied to Pinus albicaulis[
11
Title
Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
Publication
 
Author
Bean. W.
Publisher
Murray
Year
1981
ISBN
-
Description
A classic with a wealth of information on the plants, but poor on pictures.
], differing mainly in the cones[
226
Title
Identification Guide to the Trees of Canada
Publication
 
Author
Lauriault. J.
Publisher
Fitzhenry and Whiteside, Ontario.
Year
1989
ISBN
0889025649
Description
Very good on identification for non-experts, the book also has a lot of information on plant uses.
].
Plants in this genus are notably susceptible to honey fungus[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Edible Uses

Seed - raw or cooked[
2
Title
Sturtevant's Edible Plants of the World.
Publication
 
Author
Hedrick. U. P.
Publisher
Dover Publications
Year
1972
ISBN
0-486-20459-6
Description
Lots of entries, quite a lot of information in most entries and references.
,
105
Title
Tanaka's Cyclopedia of Edible Plants of the World.
Publication
 
Author
Tanaka. T. & Nakao S.
Publisher
Keigaku Publishing; Tokyo
Year
1976
ISBN
-
Description
The most comprehensive list of edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.
,
161
Title
Food Plants of the N. American Indians. Publication no. 237.
Publication
 
Author
Yanovsky. E.
Publisher
U.S. Depf of Agriculture.
Year
 
ISBN
-
Description
A comprehensive but very terse guide. Not for the casual reader.
,
177
Title
Plants for Human Consumption
Publication
 
Author
Kunkel. G.
Publisher
Koeltz Scientific Books
Year
1984
ISBN
3874292169
Description
An excellent book for the dedicated. A comprehensive listing of Latin names with a brief list of edible parts.
,
257
Title
Native American Ethnobotany
Publication
 
Author
Moerman. D.
Publisher
Timber Press. Oregon.
Year
1998
ISBN
0-88192-453-9
Description
Very comprehensive but terse guide to the native uses of plants. Excellent bibliography, fully referenced to each plant, giving a pathway to further information. Not for the casual reader.
]. The oil-rich seed has a delicious flavour with a hint of resin[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
]. The seeds can also be ground into a powder and used in making bread, biscuits, as a thickener in soups etc[
226
Title
Identification Guide to the Trees of Canada
Publication
 
Author
Lauriault. J.
Publisher
Fitzhenry and Whiteside, Ontario.
Year
1989
ISBN
0889025649
Description
Very good on identification for non-experts, the book also has a lot of information on plant uses.
]. A reasonable size, the seed is up to 11mm x 9mm[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
], with a thick shell[
82
Title
Manual of the Trees of N. America.
Publication
 
Author
Sargent. C. S.
Website
http://www.biodiversitylibrary.org/
Publisher
Dover Publications Inc. New York.
Year
1965
ISBN
0-486-20278-X
Description
Two volumes, a comprehensive listing of N. American trees though a bit out of date now. Good details on habitats, some details on plant uses. Not really for the casual reader. It can be downloaded from the internet.
].

Inner bark[
105
Title
Tanaka's Cyclopedia of Edible Plants of the World.
Publication
 
Author
Tanaka. T. & Nakao S.
Publisher
Keigaku Publishing; Tokyo
Year
1976
ISBN
-
Description
The most comprehensive list of edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.
,
161
Title
Food Plants of the N. American Indians. Publication no. 237.
Publication
 
Author
Yanovsky. E.
Publisher
U.S. Depf of Agriculture.
Year
 
ISBN
-
Description
A comprehensive but very terse guide. Not for the casual reader.
]. 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.

A vanillin flavouring is obtained as a by-product of other resins that are released from the pulpwood[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Medicinal

Oil of turpentine, obtained from the oleo-resin of all pine trees, is antiseptic, antispasmodic, astringent, diuretic, rubefacient, stimulant and vermifuge[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
]. 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[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
]. 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[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
].
Applied externally in the form of liniment plasters, poultices, herbal steam baths and inhalers, it is a very beneficial treatment for a variety of skin complaints, wounds, sores, burns, boils etc[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
].

Agroforestry Uses:

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[
201
Title
A - Z of Companion Planting.
Publication
 
Author
Allardice.P.
Publisher
Cassell Publishers Ltd.
Year
1993
ISBN
0-304-34324-2
Description
A well produced and very readable book.
].
A fairly wind resistant tree, it can be grown as part of a shelterbelt planting[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Other Uses

A tan or green dye is obtained from the needles[
168
Title
Nature's Colors - Dyes from Plants.
Publication
 
Author
Grae. I.
Publisher
MacMillan Publishing Co. New York.
Year
1974
ISBN
0-02-544950-8
Description
A very good and readable book on dyeing.
].

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[
64
Title
Vegetable Gums and Resins.
Publication
 
Author
Howes. F. N.
Publisher
Faber
Year
 
ISBN
81-88818-17-8
Description
A very good book dealing with the subject in a readable way.
]. The resins are obtained by tapping the trunk, or by destructive distillation of the wood[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
64
Title
Vegetable Gums and Resins.
Publication
 
Author
Howes. F. N.
Publisher
Faber
Year
 
ISBN
81-88818-17-8
Description
A very good book dealing with the subject in a readable way.
]. In general, trees from warmer areas of distribution give the higher yields[
64
Title
Vegetable Gums and Resins.
Publication
 
Author
Howes. F. N.
Publisher
Faber
Year
 
ISBN
81-88818-17-8
Description
A very good book dealing with the subject in a readable way.
].
Oil of Turpentine consists of an average of 20% of the oleo-resin[
64
Title
Vegetable Gums and Resins.
Publication
 
Author
Howes. F. N.
Publisher
Faber
Year
 
ISBN
81-88818-17-8
Description
A very good book dealing with the subject in a readable way.
] and is separated by distillation[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
64
Title
Vegetable Gums and Resins.
Publication
 
Author
Howes. F. N.
Publisher
Faber
Year
 
ISBN
81-88818-17-8
Description
A very good book dealing with the subject in a readable way.
]. Turpentine has a wide range of uses including as a solvent for waxes etc, for thinning and dissolving varnish and paints, a shoe polish, medicinal etc[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
].
Rosin is also obtained by distillation of pine resin. This is used in paper glue and soap manufacturing, as a constituent of varnishes and paints, and for coating the bows of stringed musical instruments such as violins[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
].
Pitch can also be obtained from the resin and is used for waterproofing, as a wood preservative etc[
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
].

The wood is light in weight, soft, close-grained, smelling of turpentine when freshly cut. It is occasionally made into lumber and is also used for general carpentry[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
61
Title
A Dictionary of Plants Used by Man.
Publication
 
Author
Usher. G.
Publisher
Constable
Year
1974
ISBN
0094579202
Description
Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
,
82
Title
Manual of the Trees of N. America.
Publication
 
Author
Sargent. C. S.
Website
http://www.biodiversitylibrary.org/
Publisher
Dover Publications Inc. New York.
Year
1965
ISBN
0-486-20278-X
Description
Two volumes, a comprehensive listing of N. American trees though a bit out of date now. Good details on habitats, some details on plant uses. Not really for the casual reader. It can be downloaded from the internet.
,
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
].
The wood is used for fuel.

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[
80
Title
Hardy Woody Plants from Seed.
Publication
 
Author
McMillan-Browse. P.
Publisher
Grower Books
Year
1985
ISBN
0-901361-21-6
Description
Does not deal with many species but it is very comprehensive on those that it does cover. Not for casual reading.
]. Plant seedlings out into their permanent positions as soon as possible and protect them for their first winter or two[
11
Title
Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
Publication
 
Author
Bean. W.
Publisher
Murray
Year
1981
ISBN
-
Description
A classic with a wealth of information on the plants, but poor on pictures.
]. Plants have a very sparse root system and the sooner they are planted into their permanent positions the better they will grow[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
]. Trees should be planted into their permanent positions when they are quite small, between 30 and 90cm[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. 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
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
]. Larger trees will check badly and hardly put on any growth for several years. This also badly affects root development and wind resistance[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
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[
81
Title
Conifers.
Publication
 
Author
Rushforth. K.
Publisher
Christopher Helm
Year
1987
ISBN
0-7470-2801-X
Description
Deals with conifers that can be grown outdoors in Britain. Good notes on cultivation and a few bits about plant uses.
].
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2019-12-13. <temperate.theferns.info/plant/Pinus+flexilis>

Add a Comment:

If you have any useful information about this plant, please leave a comment. Comments have to be approved before they are shown here.