Imagine stepping into your garden and being greeted by a riot of vibrant colors, each bloom more dazzling than the last. That ...

What's the best way to fight spider mights on an Alberta spruce? How can you encourage bats to migrate to a new bat house? OSU Extension Service experts offer advice.

Dwarf rhododendrons typically produce more blooms than their taller counterparts. Here are 14 dwarf rhododendron varieties to consider adding to your garden this year. Want more gardening tips?

Learn what powdery mildew on plants looks like and what causes this fungal disease. A garden expert explains the best treatments for powdery mildew.

DEAR JANET: The leaves on my rhododendrons on the north side of my home in Northwest Arkansas are turning yellow and have brown spots. Do you have any suggestions to remedy this?

Same rhododendron in different temperatures. When you step outside on a cold winter’s day, have you noticed how rhododendron leaves change their appearance? Usually, they are glossy and full ...

Remember the curious fact that all azaleas are rhododendrons but not all rhododendrons are azaleas. While most azaleas are deciduous and lose their leaves in winter, rhododendrons usually are ...

Uniquely, rhododendrons roll their leaves inwardly when the temperature drop below freezing; the colder it is, the tighter they roll. This protects them from wind exposure that dries out the leaves.

Instead of losing leaves, rhododendrons lose the water in their leaves during cold temperatures. The process is called thermonasty!

Rhododendron sinogrande, native to China and Tibet, has leathery, bright, dark green leaves that can measure 2 feet long and a foot wide. From Japan, R. yakusimanum is a compact shrub, to 3 feet tall ...