IAN'S PLANT OF THE WEEK

Rhododendrons and Azaleas

Rhododendrons and azaleas are garden "gems".  The large colourful blooms can brighten that special shady area on your property. They are forgiving plants, but there are some things that are essential to keep them happy and healthy. 

Both require acidic soil which can be achieved by incorporating compost and peat moss into the planting area.  An annual mulching of pine needles will help to keep the soil acidic. Adequate moisture in the soil is essential especially in the heat of the summer.  A gentle misting of the foliage will help to keep the leaves from undue stress.

The most important decision is site location,  Rhodos and azaleas require "dappled sunlight" in a protected area, out of the effects of drying winds.This is very improtant, especially in the winter months.  Plants should be protected with a burlap screen in winter if the winds are a factor.  

There are approximately 1000 species of Rhododendrons with over 28,000 different cultivars registered to date.  The choices are endless, but it is important to purchase plants that are hardy for your zone. One popular and hardy Rhodo is the PJM series.  They can grow to 4 feet, come in various colours and their evergreen leaves trun to a burgundy colour in fall.  

The Northern lights series of Azaleas are also popular, having bright, intense colours, growing up to 6 feet and are very hardy for our zone 5.  Some gardeners shy away from trying to grow Rhodos and azaleas, thinking they are too "fussy", but given the right location, soil and a little care and attention, their efforts will be rewarded with a truly beautiful display of unique colour from these graceful plants.