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Useful Temperate Plants

Pinus coulteri

D.Don

Pinaceae

+ Synonyms

Pinus macrocarpa Lindl.

Pinus ponderosa coulteri (D.Don) A.E.Murray

Common Name: Big-Cone Pine

No Image.

General Information

Pinus coulteri is an evergreen tree with a thin, irregular, broad crown; it can grow up to 24 metres tall. The straight to contorted bole can be up to 100cm in diameter[
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 tree is harvested from the wild for local use as a food and source of materials. It is occasionally grown as an ornamental, valued especially for the large seed cones[
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 coulteri has a limited area of occupancy. It may also be adversely affected by fire management policies. Although there are no data to quantify a rate of decline in the past or present, it is inferred that continuous and/or increased suppression of forest fires will in the long term lead to such a decline. The plant is classified as 'Near Threatened' 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
0-395-46722-5
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.
,
71
Title
A California Flora.
Publication
 
Author
Munz P.A. & Keck D.D.
Publisher
University of California Press; Los Angeles
Year
1959
ISBN
-
Description
An excellent flora but no pictures. 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

South-western N. America - western California, Baja Norte

Habitat

Scattered singly or in small groves in coniferous forests on dry rocky slopes, flats, ridges and chaparral, transitional to oak-pine woodland; at elevations from 300 - 2,100metres[
71
Title
A California Flora.
Publication
 
Author
Munz P.A. & Keck D.D.
Publisher
University of California Press; Los Angeles
Year
1959
ISBN
-
Description
An excellent flora but no pictures. 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.
].

Properties

Conservation StatusNear Threatened
Edibility Rating *  *  *  *
Medicinal Rating *  *
Other Uses Rating *  *
HabitEvergreen Tree
Height18.00 m
Growth RateMedium
PollinatorsWind
Self-fertileNo
Cultivation StatusWild

Cultivation Details

Pinus coulteri grows in a Mediterranean type climate with mild, wet winters and long, hot and dry summers. It is not a very cold-hardy plant, able to tolerate short periods with temperatures down to around -8 to -10°c when fully dormant[
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.
].
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.
,
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.
]. Succeeds in most soils, including clay[
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.
]. 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.
].
Often a short-lived tree in cultivation. It is slow to get established but it then grows strongly[
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.
]. Of moderate growth in height with increases of about 30 - 40cm a year, but of rapid increase in girth, about 3 - 5cm a year[
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.
].
Trees do not often bear cones in Britain[
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.
,
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.
]. A tree planted in 1954 at Kew was about 12 metres tall in September 1993 and was carrying a number of large cones[
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 summer had been cool and damp[
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 same tree had another good crop of cones in the autumn of 1996 and continues to cone quite well in 1999[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
]. An 11 year old tree at Kew had two small female cones in January 1999[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Seed cones maturing in 2 years, gradually shedding seeds thereafter and moderately persistent, massive, heavy, drooping, asymmetric at base, narrowly ovoid before opening, ovoid-cylindric when open, 20--35cm, pale yellow-brown, resinous, stalks to 3cm; apophyses transverse-rhombic, strongly and sharply cross-keeled, elongate, curved, continuous with umbos to form long, upcurved claws 2.5--3cm. Seeds obovoid; body 15--22mm, dark brown; wing to 25mm[
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 fresh cones can weigh 2.2 kilos and when dried in a warm room for a year or so still weigh ½ kilo. The cones open and shed their seed whist still attached to the tree[
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.
]. The seeds are ejected explosively from the dry cone over a period of several weeks[
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.
]. The cones are 25 - 35cm long[
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.
], they can hang on the tree for a number of years with their seed intact[
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.
].
This species is closely related to P. sabiniana[
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.
].
Leaf secretions inhibit the germination of seeds, thereby inhibiting the growth of other plants below the tree[
18
Title
Companion Plants.
Publication
 
Author
Philbrick H. and Gregg R. B.
Publisher
Watkins
Year
1979
ISBN
-
Description
Details of beneficial and antagonistic relationships between neighbouring plants.
].
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.
].
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.
,
62
Title
A Field Guide to N. American Edible Wild Plants.
Publication
 
Author
Elias. T. and Dykeman. P.
Publisher
Van Nostrand Reinhold
Year
1982
ISBN
0442222009
Description
Very readable.
,
63
Title
Nuts.
Publication
 
Author
Howes. F. N.
Publisher
Faber
Year
1948
ISBN
-
Description
Rather old but still a masterpiece. Has sections on tropical and temperate plants with edible nuts plus a section on nut plants in Britain. Very readable.
,
92
Title
Early Uses of Californian Plants.
Publication
 
Author
Balls. E. K.
Publisher
University of California Press
Year
1975
ISBN
0-520-00072-2
Description
A nice readable book.
,
182
Title
Ornamental Shrubs, Climbers and Bamboos.
Publication
 
Author
Thomas. G. S.
Publisher
Murray
Year
1992
ISBN
0-7195-5043-2
Description
Contains a wide range of plants with a brief description, mainly of their ornamental value but also usually of cultivation details and varieties.
]. Large[
183
Title
Cornucopia - A Source Book of Edible Plants.
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications
Year
1990
ISBN
0-9628087-0-9
Description
Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
], individual seeds are up to 15mm x 8mm[
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 oil-rich seed has a delicious taste with a slightly resinous flavour, it used to be gathered in large quantities by the local native people who ate it as a staple food[
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.
].

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.
].

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, coarse-grained, soft, not strong. A second class lumber[
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.
,
84
Title
A Field Guide to the Common and Interesting Plants of Baja California.
Publication
 
Author
Coyle. J. and Roberts. N. C.
Publisher
Natural History Publishing Co.
Year
1975
ISBN
-
Description
A very readable pocket flora with good illustrations, it gives quite a few 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.
].
The wood is occasionally used for fuel[
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.
,
84
Title
A Field Guide to the Common and Interesting Plants of Baja California.
Publication
 
Author
Coyle. J. and Roberts. N. C.
Publisher
Natural History Publishing Co.
Year
1975
ISBN
-
Description
A very readable pocket flora with good illustrations, it gives quite a few 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.
]

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. 2023-01-30. <temperate.theferns.info/plant/Pinus+coulteri>

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