Azalea Plants

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  1. Azalea With Yellow Leaves
  2. Azalea Disease on Leaves
  3. Azaleas With Yellow Leaves
  4. Azalea Spotting
  5. Any Ideas as to Azalea Losses?
  6. Organic Spray for Azaleas
  7. Lemons as Fertilizer
Asked by Anonymous on November 20, 2010
Azalea With Yellow Leaves

My azalea has been extremely healthy all summer but now has lots of leaves turning yellow and falling off. HELP!!

ANSWERS
Heather
Certified GKH Gardening Expert

Did you fertilize it recently? The are easily burned by fertilizer and this is known to cause sudden leaf drop in the plants.

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Asked by Anonymous on November 27, 2010
Azalea Disease on Leaves

I have a number of Azalea plants in pots that I’ve had for about 11 years. I keep them under shade cloth in the summer in an easterly direction and in the winter I put them in a round garden on my front lawn. They love it there and they always flower beautifully. I live in the central wheatbelt of Western Australia and our summers are very hot and winters are cold and frosty. This does not seem to worry them at all, but this year they have what appears to be a white to grey appearance on the outside of the leaf and on the under side little black spotted things. Please can you help, as I said the summer doesn’t worry them as long as they are under the shade cloth, and of course, kept watered and the cold frosty mornings when we have them in winter doesn’t bother them.

ANSWERS
Nikki
Certified GKH Gardening Expert

The problem could be attributed to the azalea lace bug. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azalea-lace-bug.htm

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Asked by Anonymous on December 12, 2010
Azaleas With Yellow Leaves

I planted 13 azaleas in my front yard about 5 months ago and now the leaves are turning yellow. Why?

ANSWERS
Heather
Certified GKH Gardening Expert

It sounds like either a nutrient deficiency or a drainage problem. Have your soil tested, then amend the soil accordingly and make sure that the plants are not in standing water

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Asked by Anonymous on December 23, 2010
Azalea Spotting

I planted 5 gallon-sized azaleas last spring. Now they have yellow leaves with some brown spotting and they’re easily pulled off the plants. How can I cure this problem?

ANSWERS
Heather
Certified GKH Gardening Expert

It sounds like a fungus, likely Leaf Spot Fungus. This article will help you:
https://www.gardeningknowhow.com/plant-problems/disease/plant-leaf-spots.htm

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Asked by robert on December 30, 2010
Any Ideas as to Azalea Losses?

I am on Wadmalaw Island SC. I have about 30 well established large azaleas and about 20 small “suzikis” (sp) About two years ago some of both varieties started getting yellow leaves and then dying branch by branch. I saw no obvious pests, and cut out the branches. The bush died anyway. The problem has slowly spread bush by bush from the first area. Any suggestions?

ANSWERS
Heather
Certified GKH Gardening Expert

Unfortunately, I suspect that it may be Phytophthora Root Rot. This article will have more information:
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/phytophthora-root-rot-azaleas.htm

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Asked by betty on January 5, 2011
Organic Spray for Azaleas

I want to know how to make an organic spray for my Azaleas, which have lace bugs.

ANSWERS
Heather
Certified GKH Gardening Expert

This article has recipes for homemade sprays:
https://www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm

I like neem oil myself. You have to buy it, but it is organic, safe for people, pets and good bugs and very effective. Here is more information:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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Asked by Anonymous on January 10, 2011
Lemons as Fertilizer

We had a hard frost and I now have some rotten lemons. I vaguely remember hearing something about using lemon peels as a fertilizer for something – maybe azaleas? Could I use these whole lemons in some way? I live in Sacramento, CA where winter can have freezes but the temps are usually 40-50s. Summers are dry with 90-100s for a couple months. Any suggestions would be great. I can just add them to the compost, but have lots of azaleas and would love using them as fertilizer for them if that were possible.

ANSWERS
Nikki
Certified GKH Gardening Expert

Azaleas love acid, and lemons are high in acid, so they would make good fertilizer. I would not put the lemons on the ground as is though, as this could attract vermin and possibly burn the soil. Instead, I would compost them first before applying them to the azaleas.

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