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

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2
votes
2answers
292 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 ...
4
votes
3answers
548 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 ...
7
votes
2answers
1k 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
2answers
8k 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
751 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 ...
4
votes
1answer
1k 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
201 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?
2
votes
1answer
135 views

Which indoor plant/tree is this?

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

How do I control fire ants in the mulch around my tree?

I live in Houston, TX, USA and fire ants are a nearly year long concern. I have had success treating mounds with Orthene as they appear. However, I had a Siberian Elm in my backyard that was ...
6
votes
1answer
116 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 ...
4
votes
1answer
138 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 inch-...
4
votes
4answers
361 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 ...
5
votes
1answer
197 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 ...
4
votes
2answers
667 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 aggressive-growing,...
4
votes
2answers
2k views

Does an Eastern Redbud tolerate partial shade?

I'm thinking of replacing an ugly evergreen shrub in my front yard with a flowering tree of some kind. The location on which I'll be placing the tree is overshaded by some very large old oaks, so I'm ...
5
votes
2answers
698 views

My tree has root damage: how can I save it?

I cut a few of the roots around my tree. My tree is now in shock: the leaves are curling and it's losing some of them. The tree itself is drooping. Is there anything I can do for my tree?
4
votes
1answer
2k views

Can I grow chestnuts or hazelnuts indoors? If yes, how?

Can I grow chestnuts or hazelnuts indoors? If yes, how? If not, how can I grow them outdoors?
3
votes
2answers
187 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 ...
3
votes
2answers
177 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). ...
6
votes
1answer
2k views

Pruning a mimosa

I have a mimosa and I have to prune it. I'd like to be less invasive and do this "operation" in the best way. Which is the best weather to prune mimosa? Which is the best time to do it?
2
votes
1answer
78 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 ...
5
votes
1answer
417 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
84 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 ...
3
votes
2answers
151 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
188 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
229 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 ...
2
votes
0answers
89 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?
6
votes
2answers
179 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 ...
12
votes
2answers
4k views

How should I prune an overgrown peach tree?

I have just moved into a home with a peach tree that appears healthy, but overgrown; it has clearly not been pruned in many years (although I have cut out some of the branches that made it impossible ...
6
votes
1answer
65 views

Why is my flowering crab stunted?

I have two flowering crab apples planted 2 yrs ago beside each other (20 ft apart). When they went in they were identical. However for two years the one has flourished and the other is anemic, such ...
9
votes
1answer
622 views

What are some good tree suggestions for providing some shade for the house (Seattle, WA)?

There's been another question asked about trees for shading a house, but I have some different criteria (plus a different climate). I'm planning on landscaping an area that's next to my house that's ...
13
votes
2answers
144 views

What are some tips on planting large plants?

When planting large plants, like trees or large shrubs, I've always dug a hole larger than the root ball, filled it with water, and then suspended the root ball in the water and used my hand to ...
9
votes
1answer
944 views

How can I remove a bush whose roots are breaking concrete?

In our backyard there is a bush growing up the side of a wall, using a drain pipe to crawl up. Its trunk has grown to be relatively thick (~ 10 cm) and it is now causing the concrete to split on the ...
13
votes
1answer
286 views

What is the risk of soil contamination via leaf mulch/compost?

Soil in the city I live in is quite often contaminated with nasty things like arsenic and lead. Levels are sometimes twice or more what's considered acceptable. For this reason, people usually ...
2
votes
1answer
290 views

Pine tree spitting something when I get close

I was walking in the woods behind my house yesterday. It had rained in the morning but was pretty dry when I went out. I put my hand up to a large pine tree (without touching it) and to my surprise, ...
4
votes
1answer
160 views

What is the name of this flowering tree?

I need help to identify the following tree. It is commonly seen in Hong Kong. However,I can't find it when searching for it under the common trees in Hong Kong. What is the name of the tree?
6
votes
1answer
88 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
85 views

How to heal this needled plant?

This little guy is suffering and I'm not sure how to help him out. Any ideas?
3
votes
4answers
26k 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 ...
0
votes
3answers
981 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?
6
votes
1answer
395 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 ...
4
votes
1answer
204 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 ...
7
votes
1answer
2k views

What kind of flowering tree is this?

These flowering trees are found in Shenandoah Valley, Virginia. Can anyone identify what they are?
10
votes
3answers
949 views

Is there a way to prune or train my tree to grow more horizontally?

I lost a beloved diseased dogwood tree that had made a wonderful space in my yard by growing long stretching horizontal branches that made a canopy of sorts. About a year or two I replaced it with ...
3
votes
2answers
116 views

List of Native trees [closed]

I reside in Pune (India). I am trying to get a list of native trees which can be planted on a hill near our house. I tried to google the list but couldnt find one. Can somebody please help with it? ...
1
vote
1answer
284 views

What do healthy red maple saplings look like?

Last year I had to cut down a red maple tree. I was able to save three of its offspring. One is ~2' tall and I moved it from where it volunteered behind a bush to the middle of the yard. Another is ~...
3
votes
1answer
393 views

How deep are the roots of a Dwarf Southern Magnolia tree?

How deep do the roots of this tree go? I understand they are quite shallow. Is this correct?
6
votes
3answers
5k views

Root system of an evergreen tree

We have evergreen trees that are approx. 55 feet tall. I am not sure the name of this type of evergreen, but is has short needles and the branches fall like a canopy and produce very small pinecones. ...
4
votes
1answer
336 views

Can woodpeckers damage a pecan tree enough that it won't produce?

A couple of Red-bellied woodpeckers have been paying regular visitors to my pecan tree this winter. Is this an indication of possible insect infestation on the tree? Is it possible they could damage ...
3
votes
1answer
324 views

Will removing the above-ground roots of an oak tree compromise its safety?

I have a large oak tree with above ground roots that grow towards my house and the other way. Will removing the roots endanger the safety of the tree in case of heavy storms. Part of the tree ...