Platanthera dilatata, also called as Tall white bog orchid, Bog candle, Boreal bog orchid, Leafy White Orchid, White Rein Orchid, Scentbottle...
Platanthera dilatata, also called as Tall white bog orchid, Bog candle, Boreal bog orchid, Leafy White Orchid, White Rein Orchid, Fragrant white bog orchid, Scentbottle, Habenaria dilatata, Limnorchis dilatata, Orchis dilatata, Piperia dilatata, is a species of the genus Platanthera. This species was described by John Lindley ex Lewis Caleb Beck in 1833.
IDENTIFY PLATANTHERA DILATATA - TALL WHITE BOG ORCHID
Platanthera dilatata is native to Komandor Islands to U.S.A. It is found growing in cold, calcareous fens, cedar and tamarack swamps, meadows, and marshes, typically in sunny spots of Alaska, Alberta, Aleutian Is., British Columbia, California, Colorado, Greenland, Idaho, Illinois, Indiana, Kamchatka, Labrador, Maine, Manitoba, Massachusetts, Michigan, Minnesota, Montana, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, Northwest Territorie, Nova Scotia, Nunavut, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Saskatchewan, Utah, Vermont, Washington, Wisconsin, Wyoming, Yukon at elevations of 0-3100 meters above sea level.
Tall white bog orchid is a large sized, cold growing terrestrial which reaching 11-130 cm in height with stout, erect leafy stems that arising from fleshy, tuber-like roots. The leaves are 3 to 6, principal, smooth, lanceolate to elliptical, 3.5-32 × 0.3-7 cm, becoming smaller as they ascend the stem, alternately attached and sheathe the smooth stem.
Bog candle bloom in summer from the erect, terminal, 30 to 60 cm long, 10 to 70-flowered, racemose inflorescence. The flowers are resupinate, rather showy, conspicuous, white, very fragrant, with a spicy scent reminiscent of cinnamon or cloves.
PLATANTHERA DILATATA - TALL WHITE BOG ORCHID CARE AND CULTURE
Cultural information should only be used as a guide, and should be to be adapted to suit you. Your physical location; where you grow your plants, how much time you have to devote to their care, and many other factors, will need to be taken into account. Only then can you decide on the cultural methods that best suit you and your plants.
Light:
Platanthera dilatata are best positioned in an area that attracts partial sunlight as they will thrive better in shady spaces. These plants can be planted in full sunlight on condition that the substrate is prevented from becoming dry in summer.
Humidity:
Tall white bog orchid needs the humidity level of 50-70%. Too dry air has a negative effect on the development of the plant: its growth is inhibited, and the leaves begin to turn yellow and dry out. The higher temperature, the higher the humidity should be, and the higher the humidity, the more often and longer it is necessary to ventilate the room where the plants are contained, otherwise the probability of rotting and various kinds of fungal diseases.
If the humidity levels are consistently too low, consider buying a humidifier to increase the humidity level. Another way of increasing humidity is by setting your plants on trays filled with pebbles or gravel and with water, but plants should not be in contact with the water.
Temperature:
Bog candle grow best at summer days average of 22-25 °C, and nights average 17-19 °C, with a diurnal range of 5- 8°C. Winter days average 14-16 °C, and nights average 9-11 °C, with a diurnal range of 5-7 °C.
Substrate and growing media:
Platanthera dilatata tolerate in almost any soil and situation, even well-drained though damp position. They are best planted in moist well-drained soil of clay, chalk or loam within an acidic, alkaline or neutral PH balance. At the time of planting you may wish to supplement native soil with a generous amount of compost to maintain good moisture levels in the summer and to promote better drainage during the winter. You can use many media such as pumice gravel, coarse sand , loam and clay (max 5 %) , peat, fen soil , sphagnum , coco peat, oyster shells . Organics preferable less than 20 %.
Repotting is done once in two to three years in autumn, winter and spring when still dormant, or in late spring when growths have reached maturity.
Watering:
Tall white bog orchid require consistently moist soil to thrive and so therefore it is vital to water plants regularly throughout active growth and during prolonged periods of dry weather. Do not let your plants dry out at any time of the year, even during autumn and winter. Soil may not be too wet in full summer, risk of anaerobic soils. Warm compost with standing water is very dangerous! Rainwater is advisable, otherwise good quality tap water chlorine poor. Good oxygen rich water is essential.
Watering is directly dependent on the temperature of the content, the higher it is, the more often it needs to be watered. When watering, excess water should flow freely from the pot, since stagnation of water both inside the pot and in its pan can very quickly lead to rotting of the roots and the lower part of the plant.
Fertilizer:
Bog candle is an easy strong growing orchid, that needs more fertiliser as other species, so one may use a good quality chemical fertiliser in growing phase, dissolved in the water as a surplus. However, fertilizer will not be superfluous, so timely dressing contributes to better flowering and development. As basic fertiliser you can use slow release grains once a year, 10 grains per mature plant in spring when shoots break through the surface.
Rest period:
During the winter, Platanthera dilatata persists in rhizome form and develops new shoots in the spring. They are the very cold-resistant and do not require any special protection in winter. It is possible to propagate by seed or by division once the plants are well-established. Highly proliferative, these orchids will quickly form colonies of several hundred head following the successive growth and dormancy cycles.
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