We have a Ponkan tree that we planted when it was about a year old. It grew just fine until this past winter when the temps were at record lows. Now, in March, our little tree is leafless and the branches appear dead. However, there are a few green buds coming out of the trunk about two inches from the ground. Do you think this means the tree is okay? Is there anything we can do? Perhaps trim off all the branches?
If you see green buds, this means that the tree is still alive and can recover, though it may take some time. I would not do anything just yet to the tree. Give it some time and see if perhaps some of the higher branches have also survived. After a month of so, you can trim away branches that have not shown any signs of life.
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?
You want lower nitrogen and higher phosphorus. These articles will be of interest to you:
https://www.gardeningknowhow.com/edible/fruits/citrus/fertilizing-citrus-trees-best-practices-for-citrus-fertilizing.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-thick-rind.htm
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?
How deep was the mulch? More than 3-4 inches can smother a plant. Did you put mulch around the trunk?
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?
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
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?
Yes, you should remove the rootstock growth. It does rob the graft of nutrients and will eventually kill it, if left to grow.
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
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.
My mandarin tree, about 2 years old, has dried curled-up leaves. I was wondering if I am over or under watering it?
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