For questions about trees: selection, planting, care, diagnosis, pruning, etc.

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3
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1answer
159 views

How should I care for a new Mimosa tree growing out of an old Mimosa stump?

We lost an old Mimosa to borers and it fell over in a wind storm. This spring it started a new growth out of the cut stump.It looks healthy but is growing RAPIDLY and it does not have much space. We ...
5
votes
2answers
143 views

What's this seed? Maple? Sycamore?

The seeds pictured below fall around my neighbourhood every Autumn (Southern Hemisphere - New Zealand). The seeds are blown over quite a vast area and I haven't been able to identify the tree(s) ...
6
votes
1answer
151 views

What is this tree with ovate-elliptical, serrate leaves, and racemes of small berries?

Asking from northeast New Jersey. Sorry I couldn't get a better picture of it - I'm hoping this is enough to identify it. These pictures were taken from below the tree branches. The tree is in the ...
6
votes
1answer
147 views

Can anyone identify this seed/fruit and what tree it has come from?

I was given this seed/fruit by a friend who found it on a walk through the countryside. I have no clue what plant it is from and want to plant it. I'm from Ireland but I'm pretty sure it is not a ...
3
votes
1answer
83 views

Is it possible to graft together a self-pollinating cherry tree?

Earlier today I asked this question: How do you tell if a tree is male or female? because I've been looking into fruit trees and learning about what is needed for them to bear fruit. So based on this ...
7
votes
1answer
2k views

How do you tell if a tree is male or female?

I was reading through some of the questions on fruit trees, because I've been thinking about getting some blueberry bushes and cherry trees, and I see a lot of people mentioning that the trees don't ...
3
votes
2answers
123 views

What small pines and deciduous trees are suitable for terrarium culture?

I am building a terrarium for some ex-Oregon family members. I really want to capture Oregon with its moss, ferns, trees and of course pine trees. I don't know of really any small pine trees that ...
4
votes
1answer
125 views

What is this tree with alternate leaves, and large green fruits?

I was told it was an almond tree, but after looking almond trees up, I don't think that's what it is. The green drupes turn yellowish/brownish and partially split open and drop. When I open them, ...
6
votes
2answers
209 views

How do I kill this salt cedar?

The front yard of my New Mexico (USDA zone 7a) house has a salt cedar (Tamarix ramosissima), which is growing like a huge bush. Its salt uptake appears to be preventing anything else in the vicinity ...
4
votes
1answer
123 views

What is causing yellow spots with 'hair growth' on the underside of the leaves on my tree?

I've slowly been bringing this tree back from some devastating summers 5 years ago where several large branches died. I've been diligent about pruning and feeding. For lack of a better description, ...
2
votes
3answers
189 views

Small Baby tree growing its roots right next to the base of my house. Should I be worried? [duplicate]

Should I pull out the tree? It stands at roughly 10 feet tall. With green colored branches. The stem of the tree is indeed brown and wooden. I have no clue how deep the roots are. Will the roots ...
4
votes
4answers
430 views

Why is my new Acer tree dying?

I recently bought a small red Acer and moved it into a more permanent pot. It's about 2 1/2 feet tall and since I've moved it, the leaves have have started to brown and shrivel like a dead leaf would ...
1
vote
1answer
228 views

Why is the leaf on my avocado tree drooping? [duplicate]

I have had an indoor avocado tree for a couple of months, but it doesn't look like the pictures on Google. One leaf is almost touching the tree. The new leaves on top are fine but when others appear ...
2
votes
2answers
99 views

What zone 5 trees and shrubs produce the most pollen?

Is some pollen more likely to provoke an allergic reaction than others? We are thinking of planting a tree or shrub like a smoke bush (Cotinus) and would like to know if this means more sniffing in ...
3
votes
3answers
120 views

Are my Emerald Arborvitaes recoverable?

I bought 31 thujas a couple of months ago and some of them are really struggling. I installed a drip line a week ago, but am wondering if these trees are completely dead. Here's a bunch of pics: ...
5
votes
2answers
430 views

What is the name of this tree and is it dangerous for our daughter?

We have two identical big trees right behind our property in Southern California that just started dropping their pods and seeds into our yard and we're having a hard time to keep our two-year-old ...
3
votes
3answers
464 views

What kind of tree is this and what's wrong with it?

The developer in my neighboorhood was so kind as to plant trees in everyone's yard. But after 3 or 4 years all but one or two (so probably 180 or so) look scrawny and pathetic. I know nothing of ...
4
votes
1answer
227 views

How do I get rid of root suckers in my yard from my neighbor's big tree?

My neighbor has a tall very leafy tree. The leaves are kind of heart-shaped, or larger at the top than at the bottom. They are arranged on the stem. I am finding little mini trees growing all over ...
4
votes
3answers
411 views

How do I remove oak seedlings which sprouted in my garden?

I have an oak tree at the bottom of my garden and it has produced small trees due to fallen acorns in the grass. I need to remove them. How do I do that?
3
votes
2answers
247 views

Will Arborvitae regrow to their usual shape after being partially eaten by deer?

I planted a bunch of Arborvitae in my yard and last winter the deer ate the bottom portion of 2 or 3 of them. I did some Googling to see if they'd grow back, and while most sources say that they will ...
4
votes
3answers
159 views

How large can potted patio trees grow in the US northeast?

I have a large sunny patio that I would like to shade with the largest potted trees that I can grow practically in the northeast of the U.S. (New England, 6a). What trees are suitable and how large ...
3
votes
1answer
166 views

What is this small tree with purple leaves and small green fruits?

I'd like to get one of these for my back yard but I'm not sure what kind of tree it is... anybody know?
2
votes
1answer
61 views

What should I do about a newly planted avocado tree that stopped growing?

The new avocado tree that I bought isn't growing well since I planted it in the ground. Should I put more soil around it to build the ground up?
3
votes
1answer
74 views

Why does my apple tree not bear fruit?

I currently live in southern Massachusetts. When an apple tree in my backyard blossoms and the little apples begin to show, they all disappear and begin to fall on the ground. FYI, there are also ...
4
votes
1answer
91 views

Is inosculating trees for shape practical for the home garden?

I've recently discovered a very cool method of tree training in which saplings are trained to a rigid form, and fused (inosculated) at certain points, to become a desired shape. If I follow the basic ...
3
votes
2answers
210 views

How do you know when a tree has died?

A tree trust planted 2 trees for me along my fence-line. One hasn't budded at all this spring, the other tree has a few small leaves on one of the lowest branches. I have a lot of ...
3
votes
4answers
135 views

What's this gash on a Maple tree?

What's this gash on a Maple tree? It seems almost "infected" compared to the "normal" splitting I see on the other Maple tree right now. NOTE: It's been raining all day. That second photo is ...
3
votes
1answer
111 views

What variety of plum tree do I have? [closed]

I bought house in central Oklahoma 4 years ago. It has a plum tree that sits alone in front yard. 2 years ago it produced the best plums I've ever had but none since. I've tried to find out why which ...
2
votes
2answers
72 views

What is this tree seedling (White Oak, something else?) from Piedmont Region, MD?

I'm gradually trying to get invasives removed from our property, replacing with natives to this area. I believe this is a tree seedling, and I think it's white oak (which would be good for this area). ...
4
votes
1answer
114 views

What conditions cause trunk sprouts on oak trees?

I asked a similar question here, but something annoying is catching my attention. Almost all of the pin oak trees in my area are sprouting up and down the trunks like crazy this spring, many of them ...
2
votes
1answer
46 views

How do I treat a rose tree that appears to be in shock but still has rose hips and has plenty of root suckers?

I have two Sunny Knock-out rose trees that were transitioned from pots to sunny landscape areas in the front of my home. The trees appear to be in shock. If not for the Sucker roots extending above ...
2
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0answers
53 views

What is eating my orange trees? [closed]

I have 3 navel orange trees in my backyard and the leaves are being eaten by something. What is it that is eating the leaves, and what can I do to prevent this?
5
votes
2answers
94 views

Is it possible for a transplanted baby Maple to grow into a Bonsai tree?

My understanding is that a real Bonsai tree is already very old living in a crevice somewhere, naturally tiny then transplanted. In 50 years living in these pots, what would these Maples look like ...
2
votes
2answers
70 views

What should I do with a wind-harmed tree that will not regrow leaves?

This tree was planted in May 2011 in Dallas, Texas. Unfortunately the month or so following were some of the windiest we've had and all of the leaves it had at the time were blown off and the tree ...
1
vote
1answer
135 views

How can I save my dying palm tree?

My palm tree started to become yellow in the last couple of months and I don't see any improvement. I've tried with some spike fertilizers for palm trees, but didn't seem to help. Here are some ...
1
vote
1answer
65 views

What plant will grow to about 3' in the shade from a pepper tree and oleanders?

Is there a low light plant, that will grow under a pepper tree, and between two oleanders, that grows about 3-5 feet tall, in southern California?
3
votes
1answer
62 views

What kind of trees can be kept in an apartment?

I live in an apartment and I want to have some indoor trees in my apartment. We have a large window that faces to the north-east and has curtains. What kind of trees can be kept in an apartment?
2
votes
1answer
60 views

How to heal this needled plant?

This little guy is suffering and I'm not sure how to help him out. Any ideas?
6
votes
2answers
952 views

Can a lemon tree become an orange tree?

I feel stupid to ask this, as there are many posts on Google about this, and I can't tell, if people are writing these stories for fun or it is real. Some claim that if you have a many old lemon ...
6
votes
1answer
78 views

How close should a maple tree sapling be to marked utilities?

Last summer I planted a maple sapling in my yard. I foolishly did this without calling 811. This month I have other work to do and had my utilities marked. When the marking was done I discovered that ...
2
votes
2answers
83 views

Lack of Blossom and Fruit on my Plum Tree!

I have a plum tree that is meant to be self pollinating. I have had it for four years, but when I bought it it was 5 years old. The first two years I had an abundant crop of plums. But for the last ...
2
votes
1answer
77 views

Which indoor plant/tree is this?

Can anyone tell me the name of this indoor plant/tree?
3
votes
4answers
2k views

How do I make Emerald Green Arborvitae grow as fast as biologically possible?

I'm buying a bunch of these babies below to create a privacy screen in my backyard. I'm getting young ones and want them to grow as fast as I can make them grow. Is there anything I can do to make ...
5
votes
2answers
136 views

I do not want to mow the lawn, how can I have a lawn without having to mow?

I have a lawn, but I limit my mowing. Plants do not grow well in the sandy soil. Weeds grow extremely well. The climate is moist, humid spring, summer and fall. Winter is snow and ice. Groundcover ...
5
votes
2answers
103 views

How should I stabilize a tree with a malformed root ball?

I recently purchased a tree from a local nursery. It was originally in a 15-20 gal pot. The trunk of the tree was not centered in the pot. Instead its was an inch or two away from the edge. As a ...
0
votes
3answers
226 views

Identifying a Tree

I'm wanted to buy and plant some trees myself and want to copy my neighbor's tree. I'm having a hard time identifying what type of tree it is. Does anyone know by looking at it?
5
votes
1answer
353 views

Oak tree - arborist says needs to be removed?

I have a very nice oak tree in my backyard that is about 100-150 years old. The tree is in a good visual shape and we trim it about every two years. However, there is a wound on tree's stem, about 25 ...
2
votes
1answer
67 views

Can the top of a tree be trained to form an espalier-line?

I have planted 2 apple trees and 2 pear trees into espaliers (horizontal lines, simple shape). I picked the perfect branches for the first bottom lines. However, two of the trees have long flexible ...
4
votes
1answer
83 views

root cut off from large tree

I have a large ornamental tree in my garden.( I have just bought the bungalow). While I was out a large root(about a foot diameter) which was causing a wall to fall over was cut off. The leaves ...
3
votes
1answer
86 views

What are the limits to growing plants hydroponically?

I'm working with a group of artists, educators and engineers to develop new methods for STEM teaching in classrooms and museums. Right now, we are trying to design a room-sized model of the carbon ...