The entire maintenance measures are essentially limited to the coordination of the growth factors with the general weather situation. The temperatures should have approximately the following values (occasional short-term fluctuations of 2-3 ° are acceptable):
K: tags +13°, at night + 10 ° C,
T: tags +16-18°, at night + 15-16 ° C,
W: tags +21°, at night +19-21 °C.
Provided that the care takes place in the greenhouse, the temperature can be significantly influenced by precipitation and wind. Greater temperature drop when clearing up at night must be taken into account. With long-lasting cloudy, In cold weather, special care should be taken with moisture. No excess moisture may be present in any temperature range at night. Any necessary watering must take place in the morning hours. Fogging of water in the afternoon to increase the humidity in the warm section is still possible, when the heating ensures that the plants dry out by the evening. The lower the temperature, the less moisture, this is the motto for the orchids to be kept cool.
Cattleya/Laelia: Temperatures moderate, to prevent premature onset of shoots = day + 16-18 ° C, at night + 12-15 ° C. Avoid dry balls at all costs.
plants, which buds show, keep a little more humid, to ensure good development of the same.
Cymbidium: Moderately moist, definitely not too wet; Keep plants with buds normally moist, never keep warm, because otherwise there is a risk of losing the buds due to yellowing. Humidity is also essential for dormant plants.
Paphiopedilum: Only slight restriction of humidity. Temperatures within the three ranges as generally stated, slightly increased for plants in the bud stage for perfect flower formation.
Phalaenopsis: Consistently high temperature, no rest period, no excessive drying out, otherwise there is danger to the plant; Bud formation should take place under the strongest light, otherwise yellowing is inevitable.
Dendrobium: Complete rest within the temperature ranges, Differentiated heat depending on the origin, Moderate to low humidity, Humidity sufficient,
Protection against red spider and thrips.
Hartbulbige Oncidium, Odontoglossum and similar orchids need little heat and water.
Deciduous orchids, wie Calanthe, Catasetum u.a. are to be kept completely dry.
Paphiopedilum of the warmer section can – provided that they are transplanted without flowers or buds; Humidity afterwards low, frequent spraying or misting is required.
Under favorable conditions, the first signs of new root growth can be seen towards the middle to the end of the month. It's a visible sign, that the most difficult time has been overcome – pleasing for the keeper who is most closely associated with his plants.