Sign Up
Click on links below to jump to that question.
- Q.Why Have Some Leaves On My Contoneaster Lactus Hedge Turned White? - In last few days I’ve noticed some leaves (particularly at bottom of hedge) on my 6 foot cotoneaster lactus hedge ...
- Q.If I Cut The Top Off An Old Cotoneaster Will It Grow From The Bottom? - I have a very old cotoneaster that has no foliage on the bottom 3 feet. The top is very vigorous ...
- Q.Clover Growing Through Cotoneaster - I have a large excavated area, which has been planted out in cotoneaster to stabilise it. It has been invaded ...
- Q.Can You Please Tell Me What Is Causing This To My Cotoneaster? - It’s part of my hedge and 20 years old
- Q.Tom Thumb Cotoneaster Looks Good When Planted But Does Dies In A Short Time. Planted In Full Sun/partial Shade/ Well Drained Soi - l. This planting and dying has happened two years in a row? Although it is early in the season, it ...
- Q.My Cotoneaster Seems To Be Getting Smothered By Spider Webs, What Can I Do To Stop This? - The cotoneaster has been in our garden for at least 28 years and suddenly, this year, it is covered in ...
- Q.Why Is My Cotoneaster Dying? - My cotoneaster that you will see in my photograph has grown from a cutting that I took from my grandma's ...
Asked by
gailkilleen on
August 19, 2020
County Cork IrelandQ.Why Have Some Leaves On My Contoneaster Lactus Hedge Turned White?
In last few days I’ve noticed some leaves (particularly at bottom of hedge) on my 6 foot cotoneaster lactus hedge have turned/are turning white. Hedge is 8 years old and has always grown well. We live by the coast but hedge is sheltered by the house.
Answered by
BushDoctor on
August 19, 2020
Certified ExpertA.This looks to be an iron deficiency. I would check for deficiency or pH swings, which can cause deficiency-like symptoms.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/ornamental/shrubs/cotoneaster/how-to-grow-cotoneaster.htm
Was this answer useful?00
Join Us -
Sign up to get all the latest gardening tips!
- Asked by
Anonymous on
August 21, 2020Q.If I cut the top off an old cotoneaster will it grow from the bottom?
I have a very old cotoneaster that has no foliage on the bottom 3 feet. The top is very vigorous but arches over other plants and keeps them in the dark. It is in a relatively small border. If I cut off the top growth will the plant shoot again from the old wood?
- Answered by
GKH_Susan on
August 21, 2020
Certified ExpertA.It's tough to say whether the tree will sprout from the old wood at the bottom because the cotoneaster naturally shapes itself as you're seeing it now. My guess is it will continue to flourish at the top. However, those long branches can certainly be pruned back. I am adding links to a couple articles that may help:
https://www.gardeningknowhow.com/ornamental/shrubs/cotoneaster/pruning-cotoneaster-shrubs.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/damage-from-over-pruning.htmWas this answer useful?00 - Asked by
Anonymous on
September 18, 2021Q.Clover Growing Through Cotoneaster
I have a large excavated area, which has been planted out in cotoneaster to stabilise it. It has been invaded by white clover, which I cannot spray, as I do not want to kill the cotoneaster. Please, any suggestions how to eradicate the clover? Hand-pulling is not an option. Thank you.
- Answered by
BushDoctor on
October 1, 2021
Certified ExpertA.It would seem that the only, viable, option will be mulching! Heavy mulching can smother the clover, but do be careful about watering. Mulching will increase the time it takes the soil to dry out, so make sure that you compensate for this fact.
https://www.gardeningknowhow.com/plant-problems/weeds/getting-rid-white-clover.htm
https://www.gardeningknowhow.com/garden-how-to/mulch/best-mulch-for-garden.htm
https://www.gardeningknowhow.com/garden-how-to/mulch/using-inorganic-mulch-in-gardens.htm
Another option is to leave the clover. They will keep the Cotoneaster well fed with nitrogen, while keeping all other weeds away.
https://www.gardeningknowhow.com/edible/grains/cover-crops/cover-crops-for-clay-soil.htm
https://www.gardeningknowhow.com/edible/grains/cover-crops/living-mulch-ground-cover.htm
Was this answer useful?00 - Asked by
Anonymous on
February 19, 2022Q.Can You Please Tell Me What Is Causing This To My Cotoneaster?
It’s part of my hedge and 20 years old
- Answered by
GKH_Susan on
March 4, 2022
Certified ExpertA.It looks like lichens, which are often on trees. They are harmless and need no intervention.
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm
Was this answer useful?00 - Asked by
Anonymous on
March 30, 2022Q.Tom Thumb Cotoneaster Looks Good When Planted But Does Dies In A Short Time. Planted In Full Sun/partial Shade/ Well Drained Soi
l. This planting and dying has happened two years in a row? Although it is early in the season, it appears that the plants planted last year have not survived. Branches are dry and brittle. Could something in the soil be causing this problem. I like the plants but am hesitant to spend any more money replacing them.
- Answered by
BushDoctor on
March 31, 2022
Certified ExpertA.This will have two causes, mainly. Typically, moist soils will cause them to die, fairly, quickly. They prefer things on the dry side. When transplanting, it is necessary to allow the soil to dry out, thoroughly, between waterings. Keeping the soil moist with this plant will not be appropriate.
If this is not the case, and you know for a fact that the soil dries out thoroughly, then it could be a disease. There are many soil borne diseases.
You can take your soil samples to your nearest extension service, however. They can test it for you.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/test-soil-for-pests-and-diseases.htm
https://www.gardeningknowhow.com/extension-search
https://www.gardeningknowhow.com/ornamental/shrubs/cotoneaster/how-to-grow-cotoneaster.htm
Was this answer useful?00 - Asked by
Anonymous on
September 19, 2023Q.My Cotoneaster Seems To Be Getting Smothered By Spider Webs, What Can I Do To Stop This?
The cotoneaster has been in our garden for at least 28 years and suddenly, this year, it is covered in lots of spiders webs. The right hand side of the plant has started to die off and the leaves have gone brown and are falling off.
- Answered by
GKH_Susan on
September 19, 2023
Certified ExpertA.It's probably not garden spiders because they wouldn't hurt the plants. But spider mites, too tiny to see, can damage plants. Here is more:
https://www.gardeningknowhow.com/plant-problems/pests/insects/spider-mite-treatment.htm
Was this answer useful?00 - Asked by
Anonymous on
May 7, 2024Q.Why Is My Cotoneaster Dying?
My cotoneaster that you will see in my photograph has grown from a cutting that I took from my grandma's about 20 years ago. As you can see it has grown into a large tree that has always been beautiful. Suddenly this year it's leaves have disappeared and no berries have appeared. Can you give me some idea of what has happened to it please? An additional worry is that the same thing has happened to the fuchsia in front of it. As you can see in the photograph it has only it's very pale branches left. The same thing has happened to my other more mature fuchsia that is an another part of my garden that is not attached to the garden where my cotoneaster is. I do hope you can help me.
- Answered by
GKH_Susan on
May 8, 2024
Certified ExpertA.The cotoneaster must have been declining for years since it has been pruned so drastically. They may all be suffering from disease but we cannot tell by looking at the photograph. This information should help:
https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-scratch-test.htm
https://extension.psu.edu/cotoneaster-diseases
https://www.gardeningknowhow.com/garden-how-to/info/diseased-plant-disposal.htm
Was this answer useful?10
Do you know a lot about gardening?
Become a GKH Gardening Expert
X
Join Us -
Sign up to get all the latest gardening tips!