
Pinus tropicalis
Pinus tropicalis
Safety & Hazards
The wood, sawdust and resins from various species of pine can cause dermatitis in sensitive people[1].
Cultivation Details
Pinus tropicalis is a plant of lowland areas in the tropical climate of Cuba. The mean annual precipitation is around 1,200mm and there is a prolonged dry season[2]. The tree is not very cold tolerant and can be damaged by temperatures falling close to zero[3]. 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[4, 5]. The ovoid seed cones are 5 - 8cm long and up to 5cm wide; they take two growing seasons to mature. The cones open and release their seed whilst still attached to the tree, persisting on the tree for several years after opening[3]. This is one of several Pinus species that have a juvenile life stage. After germinating, the seedlings produce secondary foliage but the central shoot does not elongate - at this stage the plant looks more like a bunchgrass than a pine. Especially when growing in shade, the plant can remain in this juvenile stage for several years, developing a large taproot but not increasing in height. If the light levels increase (due to removal of tree cover by fire, deforestation or some other reason) then the plant commences rapid height growth[3]. This species is in part sympatric with Pinus caribaea, which is also found at higher elevations. Pine savannahs are open, grass-dominated lowland areas which burn frequently; Pinus tropicalis has an advantage over Pinus caribaea through its 'grass stage' by which the seedling can survive successive fires. Thus in natural environments it becomes frequently the only pine in this vegetation type[2]. Plants in this genus are notably susceptible to honey fungus[6].
Propagation
It is best to sow the seed in individual pots as soon as it is ripe if this is possible. A short stratification of 6 weeks at 4°c can improve the germination of stored seed[7]. Plant seedlings out into their permanent positions as soon as possible[5]. Plants have a very sparse root system and the sooner they are planted into their permanent positions the better they will grow[PFAF]. Trees should be planted into their permanent positions when they are quite small, between 30 and 90cm[6]. 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[PFAF]. Larger trees will check badly and hardly put on any growth for several years. This also badly affects root development and wind resistance[6]. 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[8]. Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2026-02-20. <tropical.theferns.info/viewtropical.php?id=Pinus+tropicalis>
Pollinators
Wind
References
- [1]A Field Guide to Medicinal Plants. Eastern and Central N. America. — Foster. S. & Duke. J. A. · Houghton Mifflin Co. · 1990 · ISBN 0395467225 ↩︎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.
- [2]IUCN Red List of Threatened Species — http://www.iucnredlist.org/ ↩︎A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
- [3]The Gymnosperm Database — http://www.conifers.org/index.htm ↩︎A vast amount of information on conifers and families of gymnosperms.
- [4]RHS Dictionary of Plants plus Supplement. 1956 — F. Chittendon. · Oxford University Press · 1951 · ISBN - ↩︎Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]).
- [5]Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. — Bean. W. · Murray · 1981 · ISBN - ↩︎A classic with a wealth of information on the plants, but poor on pictures.
- [6]The New RHS Dictionary of Gardening. 1992. — Huxley. A. · MacMillan Press · 1992 · ISBN 0-333-47494-5 ↩︎Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
- [7]Hardy Woody Plants from Seed. — McMillan-Browse. P. · Grower Books · 1985 · ISBN 0-901361-21-6 ↩︎Does not deal with many species but it is very comprehensive on those that it does cover. Not for casual reading.
- [8]Conifers. — Rushforth. K. · Christopher Helm · 1987 · ISBN 0-7470-2801-X ↩︎Deals with conifers that can be grown outdoors in Britain. Good notes on cultivation and a few bits about plant uses.
- [9]A Modern Herbal. — Grieve. · Penguin · 1984 · ISBN 0-14-046-440-9 ↩︎Not so modern (1930's?) but lots of information, mainly temperate plants.
- [10]Nature's Colors - Dyes from Plants. — Grae. I. · MacMillan Publishing Co. New York. · 1974 · ISBN 0-02-544950-8 ↩︎A very good and readable book on dyeing.
- [11]Vegetable Gums and Resins. — Howes. F. N. · Faber · ISBN 81-88818-17-8 ↩︎A very good book dealing with the subject in a readable way.
- [PFAF]Plants for a Future — pfaf.org ↩︎