As soon as the bale of a plant is completely penetrated by roots it is time to give it more space. The same applies when roots begin to grow out of the pot. The new vessel should be three to four centimetres taller. If it is too large, the plant concentrates rather on setting up new roots than on the desired flower and shoot formation. White sites at the surface of the soil are a sign that the plant needs fresh soil. This is a result from too hard water or too much fertilizer.
After two to three weeks, the plants can be fertilized. For this, you can use liquid fertilizer. Plants enjoy it to be sprayed with a fine mist of water now and then. With this, dust stays away, and the leaves can absorb humidity. The spray should have room temperature, just like the water for watering.