If you see your rhododendron leaves turning yellow, review each and every element of the plant’s care. This will ensure that the leaves do not lose moisture during the winter. Evergreen shrubs -- those that do not lose their leaves in the cool seasons -- offer year-round color and texture.

Therefore, they need frequent watering. Anywhere you cut them on their stem, they will branch out. I often wondered why some of these trees seem to keep their leaves into early winter and some keep their leaves right through until the next spring. Rhodies are picky about the soil you plant them in and about how much water they like. Rhododendrons attempt to protect themselves from winter dehydration by curling their leaves, allowing them to hang down.

Deciduous azaleas (that lose their leaves in the winter) differ from rhododendrons in that they can actually be sheared into a hedge. Although rhododendron leaves tend to curl during cold weather, it may not always protect them from winter burn. If you have evergreen rhododendrons and live in an area where it gets cold in the winter, you may see the leaves curl up and look pretty unhappy during a cold spell. The leaves are just trying to conserve water in the cold, dry air. Treating Your Broad-Leaved Evergreens. So there is a chance that your tough rhododendron may recover. The hardy leaves of the rhododendron can lose their lovely appearance due to several diseases attacking the garden favorite. Rhododendrons do not have taproots like trees: their roots grow very near the surface. Deciduous azaleas (that lose their leaves in the winter) differ from rhododendrons in that they can actually be sheared into a hedge. But in the coldest weather they can’t use it—their metabolism shuts down. If it has been in for a long time you may see new roots forming near the soil surface. Preventing Rhododendron Cold Damage. Curled Up Leaves. Here’s a great how-to video on how to prune your rhododendrons: If you’re pruning evergreen azaleas, you can shear them after they flower. Rhododendrons are favored for their large, paddle-shaped leaves that create a showy specimen in your garden all year long.

Gardeners looking for shrubs that hold their foliage in … Do not use membrane and bark as rhododendrons dont like this.

If you get a normal autumnal rainfall (which is usually pretty high in places suited to rhododendrons), you won’t really have to do anything. However, a winter garden can appear skeletal as deciduous shrubs drop their leaves in preparation for winter dormancy.

1. The adults cause cosmetic damage by notching the leaves of rhododendrons. Replant at the correct level. Cover the rhododendron plant with an anti-desiccant spray before the first frost arrives. By keeping them closed, there is no net transfer of water into or out of the leaves. Anywhere you cut them on their stem, they will branch out. Even in a climate with mild winters, drying winter winds can … This water based product seals the leaves and stems so that moisture is not released from them. In general, rhododendrons require little pruning. Do not let piles of mulch bury the plant. Their leaves then grow back in the spring.In warmer climates or unusually warm winters, deciduous azaleas may retain some of their leaves through the winter. Evergreen shrubs -- those that do not lose their leaves in the cool seasons -- offer year-round color and texture. Vine weevils and rhododendron.

Anywhere you cut them on their stem, they will branch out. Here’s a great how-to video on how to prune your rhododendrons: Most Azaleas on the other hand (under the same Genus of Rhododendron) will lose their leaves at the end of the season. The foliage will naturally turn red in fall in this group of rhododendrons, but it is an evergreen meaning the leaves should stay on all winter. What's been eating or sucking sap from my rhododendron leaves? These nocturnal black flightless insects are more damaging at the larval stage as white grubs in the ground (see above). This happens just before winter or in summer drought. But then, much to my surprise, it started to grow some brand new shoots from the bottom. Rhododendrons and Azaleas have long been the go-to plant for northwest gardens.