ORCHIDS ASIA provides a range of orchids like Dendrobiums, Arandas, Arantheras, Mokaras, Vandas, Cattleyas, Phalenopsis, Oncidiums, Cymbidiums and other intergenerics. Plants in small, medium, and blooming sizes are available
CATTLEYA, POTTINARA, BRASSOLAELIA INTERGENERICS
CATTLEYAS and LAELIAS These orchids are the most exotic of orchids with large blooms and are chosen for corsages.In nature there are about 50 species each of Cattleya and of Laelia from Central America, growing through the Amazon region to the south of Brazil. They cross between many genera to have a wide range of hybrids with some names called Pottinara, BLC's, Brassavolas, Sophronitis, Laelia hybrids to name some.
The plants produce strong 'pseudobulbs' topped with one or more leathery leaves.Each year a dormant bud at the base grows into a new shoot. This thickens to produce the current year's pseudobulb.The flowers arise from the axil of the current year's leaf where a protective sheath usually develops, and come in a range of colours from white and pink to green and purple, depending on the parentage and genera. Some have good fragrance and form flowers in clusters.
Temperature and Humidity:
The plants like a photoperiod and rest for flowering inducement.Minimum night temperatures of 10 -15 C, depending on the plants' origin, are needed, but growth in summer is rapid at temperatures up to 26 C. A humid atmosphere, with cross airflow is beneficial.
For best results, the normal maximum is 50% of full daylight or 2000-3000 foot candles.Too much shade or too much are detrimental as leaf burn or darkened leaves may occur.In hot weather shade sufficiently to ensure that the leaves are cool to the touch.If you are growing in the home give a bright situation but not direct sunlight, behind a net curtain, from April to September.
Watering and Fertigation:
Water twice weekly and fertilise fortnightly with a recommended NPK orchid fertiliser.From March to September the compost should never be allowed to dry out completely.From October to February, no fertiliser is needed, but water the plants when the compost appears dried out. It is better to underwater as the plants can stand neglect more than over watering. During blooming it is better to feed high P and high K feeds once or twice.
Compost and potting:
A medium bark mix will do well with added polystyrene spheres or perlite to keep it open.Cahrcoal can also be added to the mixture. New compost will keep the plant growing for two to three years before it turns acid and the plant needs repotting. Don't repot until the plant roots are likely to go over the sides of the current pot and the best time to repot is when the new roots are just beginning to appear at the new shoot's base.