Pinus rigida occurs in extreme SouthEast Canada (Ontario, Quebec), NorthEast and East USA westwards to Kentucky and Ohio, southwards to South Carolina. It is found in upland or lowland, sterile, dry to boggy soils at elevations of 0-1400 meters above sea level. It is hardy to USDA Hardiness Zone 4 to 7.
Pinus rigida also called as The pitch pine, is a species of the genus Pinus. This species was described by Philip Miller in 1768.
IDENTIFY PINUS RIGIDA - PITCH PINE PLANTS
Pinus rigida occurs in extreme SouthEast Canada (Ontario, Quebec), NorthEast and East USA westwards to Kentucky and Ohio, southwards to South Carolina. It is found in upland or lowland, sterile, dry to boggy soils at elevations of 0-1400 meters above sea level. It is hardy to USDA Hardiness Zone 4 to 7.
Pitch Pine is a small to medium sized conifer tree which reaching up to 31m tall and to 0.9m in diameter with rounded or irregular crown that has red-brown bark with orange-brown, aging darker brown, rough branchlets (2-year-old). Buds red-brown. The leaves 3 to 5 per fascicle, deep to pale yellow-green, all surfaces with fine stomatal lines, margins serrulate. Pollen cones yellow. Seed cones maturing in 2 years, creamy brown to light red-brown. Seeds dark brown, mottled darker, or near black.
This conifers is currently used mainly for rough construction, pulp, crating, and fuel. It is of some interest in horticulture because of its tufts of foliage on the stem and its persistent cones, but usually confined to the arboreta and pineta of botanic gardens and private collectors, and only a few cultivars are known. Its re-sprouting from epicormic buds make it ideal for bonsai culture.
PINUS RIGIDA - PITCH PINE PLANTS CARE AND CULTIVATION
The cultivation of these plants presents no special difficulties, if proper soil and exposure are available. The question of hardiness is, of course, all-important. It is not only the problem of temperature the given tree will stand, but also the exposure to winds, and, to a considerable extent, the source from which the tree is derived. If the plants are raised from seeds matured in similar or even more rigorous climates, they are usually more hardy.
Soils:
Pinus rigida prefer a well-drained porous gravelly subsoil, overlaid with a light sandy loam. They seem to be particularly happy in a soil underlaid with a porous glacial drift. In cultivation, however, they succeed very well in ordinary well-drained soil. When the plants are set in clay soil, which is often done, the soil should be thoroughly loosened by trenching or subsoil plowing, and well underdrained. Any available humus, woodashes, and well-rotted manure incorporated in the soil greatly aid in rendering it friable and porous for the roots.
Manures and mulches:
Mulching with ordinary well-rotted barnyard manure in late autumn affords much stimulus to growth. By the following spring the manure will be in a desiccated condition and can be incorporated with the soil. A heavy mulch of old straw, rotten hay, or any similar material over the roots, and this was maintained throughout the entire growing season is benefit to the plants in a more or less juvenile condition.
In many cases manure is not obtainable. In such event, newly moved plants should be heavily mulched with rotten straw, rotten hay, or any similar rubbish for a few years until they become established. The frequent stirring of the ground over the roots subsequently will conserve sufficient moisture.
An area extending from the stem to one to two feet beyond the branches, stirred up with hoe and rake perhaps five or six times throughout the growing season, is very beneficial in conserving the moisture around the roots.
Pruning:
Removal of the lower branches of Pitch Pine is a serious mistake, and, if healthy, they should be retained to the base. Pruning or disbudding can be intelligently performed to add much to the natural symmetry. The extraction or removal, early in spring, of the central or terminal bud, will tend to compel the branches which start from the side buds to spread apart and form a much denser growth. Cutting back the previous year's terminal growth to a strong bud or branchlet on the main limbs over the tree, if the plant is inclined to be thin in its branching, always produces a much denser lateral growth.
Transplanting:
Transplanting can be done at all times of the year, excepting midsummer when they are in full growth. The best success is secured in spring when the buds begin to swell. From the end of August to the middle of September, if there have been abundant rains and the ground has been well soaked, is a very good time to move the plants. They may be planted late in autumn when circumstances compel it, but there is likely to be a considerable percentage of loss. Their roots are very susceptible to injury from exposure to the air, and the utmost vigilance should be exercised to keep them covered and moist.
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