Gardening and Landscaping Stack Exchange
Gardening and Landscaping Stack Exchange

Questions tagged [rhododendrons]

Flowering shrubs and trees, Genus "Rhododendron" species, varieties, cultivars, and hybrids, and includes Azaleas.

23 questions
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Can rhododendrons be cut back?

I have a situation where a row of rhododendrons in front of the house is overgrown and getting large. I was told by someone else that they need to be removed and replaced with smaller rhododendrons. Is that true, or can they be cut back?
Andre Lenotre
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Pine Bark vs Sphagnum Peat/Sand for Blueberries and Azaleas

I had a quick question, because I'm trying to figure up my mulch and fertilizer needs for this Spring. I had bought my father a couple of blueberry plants, among others, because that's what he wanted for his birthday. They've been in the ground…
Dalton
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Are there any plants I should not grow near my rhododendrons?

The author of this answer to this question mentioned that toxins in rhododendron leaves can prohibit growth in nearby plants. (This is a paraphrase, not a direct quote.) I have six huge rhododendron bushes that have a variety of bleeding hearts,…
Sue Saddest Farewell TGO GL
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What's the best way to deal with scale insects on Pieris Japonica?

I have a heavy infestation of bark scale on 4 mature rhododendrons and 3 pieris japonica. I applied dormant oil to the rhododendrons yesterday and would like to do the same to the pieris. However, the pieris is already in full flower - is it too…
kataob
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How should I prune a damaged Rhododendron?

I had a 6ft tall healthy Rhododendron that a tree decided to fall on. Now it has a big chunk taken out of the middle. Either side of the chunk is still 4ft or so but the middle goes right to the base of the plant. I'm not sure how far back to prune…
ethrbunny
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Repurposing this rhododendron

I've been gradually building a house on a site that has been fairly well dominated by wild, unchecked growth of various greenery over the past 15 years. Time has come to turn my attention to the garden / landscaping Part of the garden is planned to…
Caius Jard
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How can I help a rhododendron with yellowing leaves and a dead section?

I have a rhododendron which was healthy last year, and produced gorgeous white flowers. Today I noticed that many of the leaves are turning yellow, and a section appears to have died. There's plenty of new green growth, so perhaps it's just a…
Sue Saddest Farewell TGO GL
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Will buried rhododendrons stumps grow through a foot of soil?

We are going to be having soil brought into our backyard. We were wondering if cutting the rhododendrons plants down to the existing soil level, then burying them in at least one foot of soil above would stop them from continuing to grow and…
Matthew Walk
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Problem with rhododendron foliage

The rhododendron pictured below used to live in Vancouver BC, zone 8ish, and was cut back and moved a few years ago to the northern end of the British Columbia coast, about 30 miles south of the Alaskan border. Although the plant is not losing its…
Al Maki
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When, and how far, to prune down a massive overgrown rhododendron?

Our new home has several rhododendrons that look to have gone unmanaged for many many years. The largest, in the pictures below, has grown well over the roof. When should this get pruned? How far down should it get pruned at a time? What's the…
T-House
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Extreme leaf-falling from Azalea

I have an indoor Azalea which was perfectly fine before I went for holiday. I arranged for watering system, but, because of some mechanical problem, the watering was not good. when I came back, my azalea was dropping leaves vigorously. Which was…
Srijani Ghosh
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Mountain laurel or rhododendron?

Is this mountain laurel or rhododendron? Seems no one is sure. Grows in USDA hardiness zone 7b. Lower shrub limbs laying on ground typically take root and extend growth area. Plants easily make it to 6 ft (2m) height if not pruned. Blooms in…
Retired_military
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Rhododendron in complete shade corner -should I move it?

I am in a 5b zone and I have a small Rhododendron (~1.5'' high) that I planted there last year. I am having second thoughts about that and I am thinking about moving it. Update:The name of the plant is P.J.M Rhododendron Two questions: -how do I…
MiniMe
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What is this small insect with a rounded brown head burrowing into my rhododendron?

I caught this bug burrowing into the trunk of my rhododendron, and I persuaded it to exit its home. Here's a close up of said worm. I can't imagine it being other than damaging to my tree. Anyone know what it is? The location is Wellington, New…
Graham Chiu
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Young rhododendron with yellow and brown leaves

I have a fairly young rhododendron (at least two years). We planted it in the spring. For the past 2-3 months the leaves have slowly been yellowing and turning brown in spots. The soil is acidic, but to what degree I am not sure. I have not…
SethMMorton
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