Rhododendron is a plant of the Heather family, uniting more than six hundred species of predominantly evergreen, shrubs, and occasionally small trees.
Rhododendrons love partial shade, which many flower growers simply do not know about. Planting bushes in open areas of your garden, you can wait for years for flowering, which never comes. The place for planting rhododendrons should be protected from the prevailing winds and direct sunlight.
Rhododendron needs high humidity, and wilting of flowers may be due to the fact that the plant is standing next to heaters or in the sun. Leaves of rhododendron turn yellow.
Rhododendron does not tolerate lime - defend the water before watering and exclude fertilizers containing lime.
Well-permeable soils with a fairly high humus content are suitable for rhododendrons. Peat soil or a mixture of peat and sand is best suited for this purpose. A general requirement for all soils is an acid reaction of the environment. Rhododendrons grow well and develop at pH 4-5.
Watering and spraying rhododendrons should be done with soft acidified water. Water can be acidified with acetic, oxalic, citric acid.
The optimal summer watering rate is 1 time in 5-7 days. If it is very hot, then water more often. At the end of summer and early autumn, watering is reduced to 1 time in 10-12 days.