Top Questions About Mandarin Trees

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Questions About Mandarin Trees

Asked by
Anonymous on
April 12, 2011

Q. Fertilizing Mature Citrus Trees

How do I know which citrus fertilizer is best for our 15+ year old orange and lemon trees? The greenery is plentiful and healthy looking on all trees except our mandarin orange, which is losing leaves like crazy. Do I choose a food with low nitrogen to improve the flavor and juiciness or high nitrogen? Low phosphorus or high?

Answered by
Nikki on
April 13, 2011
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Asked by
malestrom on
January 13, 2013

Q. I Have Struggling Citrus Trees

Well established orange and mandarin next to each other. This year they are really struggling even though they have had mulch added for the first time in years. Loss of leaves is obvious. I have a wild passion fruit that has sprung up nearby. Should I get rid of this?

Answered by
AnnsGreeneHaus on
January 14, 2013
A.

How deep was the mulch? More than 3-4 inches can smother a plant. Did you put mulch around the trunk?

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Asked by
cazzmear on
May 29, 2013

Q. My Fruit Tree Did Not Bear Any Fruit This Year

I have a Miho Satsuma Mandarin tree that I have had for 2 years. It had fruit last year but, this year it bloomed but all the blooms fell off. The leaves are all green and growing. Why did this happen?

Answered by
AnnsGreeneHaus on
May 29, 2013
A.

Possible it's weather related or lack of pollination. This article might help; https://www.gardeningknowhow.com/edible/fruits/apples/no-fruit-on-apple-trees.htm

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Asked by
Anonymous on
March 15, 2014

Q. Rootstock

I have a Satsumma Mandarin tree. Almost a year now the rootstock started growing and it is much taller than the grafted part. Will this delay the growth of the grafted tree and lessen the fruits?

Answered by
Nikki on
March 15, 2014
Certified Expert
A.

Yes, you should remove the rootstock growth. It does rob the graft of nutrients and will eventually kill it, if left to grow.

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Asked by
Peter Smyth on
October 3, 2014

Q. Moss or mold on orange and mandarin trees

The orange tree was planted about 3 years ago and has moss or mold growing on trunk. The mandarin tree about 30 years ago has moss or mold on trunk and branches. Is the moss/mold dangerous to trees and how and when do I get rid of it? Thanks.

Peter Smyth

Answered by
theficuswrangler on
October 5, 2014
A.

There's a big difference between moss and mold. Moss can and does grow on most trees, and is harmless. Mold is usually a sign of some disease or damage on the tree. It sounds like you could use the help of a professional to see if you have a problem, and what to do about it. You can contact a registered arborist in your area, or you can call the nearest botanical garden who will either advise you, or connect you with the local master gardener program.

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Asked by
Curt on
March 17, 2015
Phoenix, az

Q. Dried leaves on a young mandarin tree

My mandarin tree, about 2 years old, has dried curled-up leaves. I was wondering if I am over or under watering it?

Answered by
Downtoearthdigs on
March 17, 2015
Certified Expert
A.

Here is a link to proper care of your Mandarin tree.

To much water may be your issue, but inspect your plant carefully for any insect damage or disease.

https://www.gardeningknowhow.com/edible/fruits/tangerine/mandarin-orange-tree-care.htm

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Asked by
Sofiatanph on
April 5, 2015
Northgate SA

Q. japanese mandarin tree

I was about to cut off the thorny part of my Japanese mandarin tree when I noticed small fruit growing out. I have attached the photos of the tree with the small fruit, which has a texture like that of a peach. Do I have to cut it and start over? The lower part of the tree is ok, with no thorns. I’m quite confused. Please help

Answered by
shelley on
April 5, 2015
Certified Expert
A.

How old is this tree?

The thorns are not necessarily a red flag. Many young citrus trees develop thorns to protect their delicate vegetation. As the tree matures, it should grow thorns less frequently. This article will explain the thorns in more detail:
https://www.gardeningknowhow.com/edible/fruits/citrus/thorns-on-citrus-trees.htm

Is this the first time this tree has started fruiting? If no, has it ever fruited successfully? If yes, then it may be too early to judge on the fruit. If the fruit, after full development and ripening, turns out abnormally then you may want to consider that the rootstock may have overtaken the scion. Almost all citrus trees sold are grafted trees. The desired tree is grafted onto a very hardy but inferior fruit tree. This insures the superior fruit have a strong root system. But, sometimes, mostly due to damage to the scion (the good tree), the rootstock takes over. Once the rootstock takes over, the only thing to do is to remove the tree and start over.

This article will explain more:
https://www.gardeningknowhow.com/ornamental/trees/tgen/can-grafted-trees-revert-to-their-root-stock.htm

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