Growing conditions for rhododendron. If you have alkaline soil grow rhododendrons as container plants or see our page on more tolerant species and cultivars. Rhododendrons and azaleas have shallow fine hair like roots. These roots do not tolerate water saturated soil conditions but do require moist soils. Whats wrong with my rhododendron.
To grow your own rhododendron plant your shrub in mild weather and care for it regularly. Buy plants that are a deep green not yellowed not wilted and well watered. When shopping for rhododendron or azaleas pay attention to when they flower. Early varieties can blossom in march late ones into july or even.
Location and site preparation are the keys to success with rhododendrons. Brown spots on the leaves. We make a small commission if you buy the products from these links at no extra cost to you. When choosing plants for your own garden emphasis should be on plant health hardiness and disease resistance.
When to plant rhododendron will depend on the usda zone in which it grows. The ideal soil ph for growing rhodies is in the range. Most southerners have either acid clay soil or alkaline clay soil. As for mineral soils rhododendrons prefer sandy and well drained soils since they are acid.
They are surface rooters with compact and dense roots so the fertile layer of soil does not have to be very deep. Proper soil preparation is also necessary for the health of this acid loving plant. Rhododendrons require the proper mix of sun and shade but acid soil is also a must for plants of this genus. Growing rhododendron is an exacting task but with the right soil and location the rhododendron bush will provide an optimum performance.
Check the soil in the container with your finger and avoid. They appreciate a spot with dappled shade or at least protection from hot afternoon sun and strong winds. Rhododendrons especially the evergreen kind prefer crumbly peaty humus rich and sharply drained soil. Rhododendrons prefer well draining acidic soil and thrive in dappled shade with mild temperatures.
Rhododendrons hate both because clay drains slowly and roots rot. Rhododendrons and azaleas thrive in moist well drained soils high in organic matter. This is why theyre hard to grow here. Rhododendrons need moist acid loose well drained soil that contains a good bit of organic matter.
Before planting dig in plenty of neutral or acidic organic matter. Soil preparation is best accomplished in autumn before planting the rhododendron in spring. This post may contain affiliate links. Composted tree bark leafmould decomposing pine or spruce needles or composted chopped bracken.