Water the Orchid only when the soil in which it grows, dries out completely. That is why it is impossible to say clearly "Watering the Orchid once a week." Because the rate of drying of the soil depends on many factors (substratum composition, pot size, lighting, humidity, etc.). Incorrect will be watering when dry only the top layer of soil. Do your best to adapt and to know for sure whether the dry soil in the pot with the Orchid. This can be a weighing of the pot, check with a dry long twig, etc.
Water the Orchid in the pot until until the water begins to flow through the drainage holes in the bottom of the pot (the pot also needs to be arranged good drainage of expanded clay, pieces of bark, Styrofoam or pebbles). The excess water from the drip tray to remove, otherwise it can cause decay of the roots of the flower.
For watering orchids , use only warm water (30-38°C).
Because orchids are very sensitive to salts contained in tap water, water the flower only soft water. That is, skip the water running from the taps, through the filter. Or even when planting orchids in a pot, add plenty of peat substrate (it needs to be about 20% of the total substrate). Orchids growing in such soils, well processed hard water. There is another method: take equal proportions of tap water and distilled, and mix – water. And yet the best way – filter. Ideal for orchids, assured the growers is rain water. It is only important to recruit her in an ecologically clean area.
Watering orchids or morning, or evening. In the daytime it absorbs little moisture, and at night does not absorb at all.
Watering orchids dip. Take a basin or bucket with warm water (30-35°C, not higher) and lower back a pot of flower. Leave on for 20-30 minutes. Remove and allow to drain water.
The most efficient method of irrigation, the growers believe the so-called "hot shower". This method is wholly simulates tropical rains, i.e. the natural conditions of the terrain of growing orchids. Practice shows that the "hot shower" provides a good capacity of green mass and more abundant and frequent flowering. In addition, this method is a good prevention against pests.At home it is best to do a "hot shower" orchids in the bathroom. The recommended water temperature 45-50°C, the strength of the jet should not be very intense in order to avoid breaking off the tender young shoots, and stems. After the shower, let the plant rest. About an hour later, all the leaves and sprouts gently wipe off (dry) with a soft cloth, do not leave water in the axils between the leaves. Pay attention to the fact that excess water does not stagnate in the core of the varieties of Vanda and Phalaenopsis, because they have only one growing point and if it starts to rot from the stagnant water, the plant will not grow and will soon die.