IN THE GARDEN: Rhododendrons with sad yellow leaves should look much better come spring. November 10, 2023 at 7:00 p.m. by Janet B. Carson ...

Q: My rhododendron has slowly been turning yellow since planting it 3.5 years ago. It gets full sun. My yard has a lot of clay in it, but I planted a lot of good soil around its roots at its planting.

Question & Answer Protecting Rhododendrons from Winter Winds Q. I planted a new rhododendron a couple of months ago, and the leaves are already turning yellow and curling up this winter. The plant is ...

Q: This year the leaves on my mature rhododendrons are turning yellow and falling off. I have no idea what could be causing this or how to prevent it. —Barbara Sterner, Wescosville A: There are ...

Yellow mottling along the leaf margins may indicate an excess of potassium. ... Rhododendrons and azaleas prefer slightly acid soils. Fertilizer is best applied soon after flowering in the spring.

With more than 1,000 varieties, rhododendrons can be found in most places in the country. Here are some tips from the American Rhododendron Society for keeping plants healthy.

Ones to watch out for are the yellow rhododendrons, which tend to need at least Zone 6 or higher. I tend to pick plants that are hardy to at least minus 15 degrees.

I would like some tips on how to improve the health of my rhododendrons. They were planted three years ago and seem to be declining now. — Robert Hansen, Highland Park RELATED: TRENDING LIFE … ...