The key to growing a successful azalea bush means that you will have to take proper care of it, which includes using a good fertilizer. Azaleas are beautiful shrubs that bloom lovely, delicate flowers. Their colors can appear in different hues of pink, purple, white and red.
If you plant your azalea bushes in the right type of soil, they can often grow perfectly well without the addition of fertilizer. However, if you live in an area where your soils are not particularly rich in nitrogen, you will have to invest in a good fertilizer, which you can purchase at your local nursery or home improvement store.
The best type of fertilizer you can apply to your azaleas is a liquid type that is slow release and rich in nitrogen. However, a good, well balanced, slow release granular type of fertilizer is also a good option, so long as it is adminstered directly into the soil and doesn't come into contact with the plant's foliage.
Always avoid over-fertilizing your azalea bushes. Doing so can lead to a myriad of problems, and you should always follow the instructions on the label of your fertilizer's bottle. Using it once every two or so weeks should be enough. Be sure to administer fertilizer to your azalea plants only after a rainfall or watering, as doing so prior to rainfall can lead to the rain washing away the substance.
Generally speaking, the best time to give your azalea bushes fertilizer is during the late winter or early spring season. However, if you live in a colder region, do not apply any type of nitrogen rich fertilizer to your plants at any time after late June, as it can lead to several problems. You may want to also consider a fertilizer that is high in phosphorous, as it can encourage the growth of flower buds earlier than usual!