Holly Bushes

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  1. What is causing the black stained leaves on holly bush?
  2. My Holly Bushes are not "looking so good" after the winter
  3. Holly bush distress
  4. holly bush with dead branches
  5. We have 2 holly bushes about 8 feet tall that have yellow leaves falling off
  6. Can I Safely Cut Roots Sticking Above the Ground on a Holly Tree?
  7. My holly bush was frost bitten what should I do?
Asked by sugar bear on March 19, 2012
What Is Causing the Black Stained Leaves on Holly Bush?

The black stained look is on the glossy side of the leaf. Only a small speck or two show on the back side of the leaf. The leaves are falling off. The berry buds and flowers are plentiful. The weather has been erratic with heat in the 80s this past week. We have not had a deep cold spell for a while. The tree is in the center of our recently replaced deck. I would also like to know how to keep it healthy. Thanks for your help.
Carol

ANSWERS
Nikki
Certified GKH Gardening Expert

This sounds like either tar spot or sooty mold. Sooty mold is normally a result of a pest infestation. These articles will help: http://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-problems-holly-leaf-spot-or-holly-tar-spot.htm
http://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm

Neem oil can be used to treat both. Here is more information: http://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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Asked by wilson on March 30, 2012
My Holly Bushes Are Not “Looking So Good” After the Winter

My four year old female holly bushes are not looking so good after I took the winter tenting off of them. There seems to be a lot of dead leaves, over most of the bush. . . . are they completely dead? Should I prune off all of the dead leaves (which is most of the bush?) Any suggestions?

ANSWERS
Nikki
Certified GKH Gardening Expert

Yes, you can prune out the dead growth. In fact, you can cut the plant back by a third of its growth to help rejuvenate it, though this will affect berry production but if it's looking poorly anyway, this shouldn't be an issue right now.

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Asked by douglas road on April 1, 2012
Holly Bush Distress

We have two new holly bushes, which were planted last year, that are showing signs of distress. Some of their leaves are turning yellow, and my wife has noticed a large number of flies and bees on its blooms. Do you have any advice on the problem?

ANSWERS
Nikki
Certified GKH Gardening Expert

If you have had a lot of rain and the drainage in the area is not good, it can cause problems with leaves. Is the ground swampy? If the ground stays wet, the roots can't "breathe" and falling leaves or yellowing would be a sign of this. Too much water causes iron chlorosis. This article will help you fix the problem: http://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-yellow-leaves.htm

The insects are likely visiting for pollination.

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Asked by deegriz2000 on April 6, 2012
Holly Bush With Dead Branches

I have two holly bushes within 3 feet from each other. One is doing wonderful and the other one is thin and has a lot of dead branches.   The first one is full and beautiful and healthy. What is the difference? Can I prune the dead branches?

ANSWERS
Heather
Certified GKH Gardening Expert

The second one that is not doing well may have a fungus or pests (or both). You can remove the dead branches, but I would treat the plant with a pesticide and a fungicide to treat both possibilities. I personally like neem oil as it is both a pesticide and a fungicide and is organic.

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Asked by azscbums on April 7, 2012
ANSWERS
Nikki
Certified GKH Gardening Expert

If you have had a lot of rain and the drainage in the area is not good, it can cause problems with leaves. Is the ground swampy? If the ground stays wet, the roots can't "breathe" and falling leaves or yellowing would be a sign of this. Too much water causes iron chlorosis. This article will help you fix the problem: http://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-yellow-leaves.htm

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Asked by jwhitney on April 11, 2012
Can I Safely Cut Roots Sticking Above the Ground on a Holly Tree?

I have roots sticking out above the ground and need to do something to lower or remove them. I don’t want to kill the tree if I can avoid it.

ANSWERS
Nikki
Certified GKH Gardening Expert

This article, which would apply to shrubs as well, should help with suggestions: http://www.gardeningknowhow.com/ornamental/trees/tgen/exposed-tree-roots.htm

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Asked by jlradeer on April 14, 2012
My Holly Bush Was Frost Bitten What Should I Do?

The other night it we got frost and the new growth of my holly bush has turned brown. Should I cut the tips off or leave it alone? It looks like just the new growth has been affected.

ANSWERS
Heather
Certified GKH Gardening Expert

Yes, new growth is much more cold tender than mature growth as it has not had time to toughen up. If it is brown and the stems are brittle, then you can remove it. If the stems are still pliable, I would leave it as it may still regrow leaves.

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