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

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2
votes
1answer
87 views

Can these two trees be identified by photo.

I would like know what these tree are. They are located in San Diego county California. The trees may not be native. Thanks, Jon.
4
votes
4answers
148 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 ...
3
votes
1answer
71 views

How fast does a Thuja hedge grow after being burnt?

A fire destroyed about 40cm of the upper part of my Thuja hedge. I have 2 questions: Should I cut off the burnt branches to help regrowth or can I leave it as it is? How long will it take to grow ...
6
votes
1answer
105 views

What kind of tree is this?

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
117 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
56 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 ...
10
votes
2answers
1k views

What kind of landscaping plants do livestock avoid eating and need minimal attention?

I'd like to plant plants/trees/shrubs along the sidewalk on the roads to improve the landscaping and general appearance. However, I live in Gurgaon, India and it is common to see livestock (cows, ...
7
votes
1answer
1k 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 ...
10
votes
3answers
1k views

How deep to dig for a new flowering pear tree?

Last year I planted 3 flowering pear trees. For those who have never heard of the tree (or do not grow these trees) they look like this: For 2 out of the 3 trees it was very simple to plant the ...
6
votes
2answers
3k views

How do I keep oak trees from sprouting?

I have a lot of nice sized oak trees. I have pin, black, and chestnut. Every once in a while one of them puts out sprouts all over the trunk and starts looking like a green pillar. How do I keep that ...
3
votes
2answers
73 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
92 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, ...
4
votes
1answer
112 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, ...
12
votes
3answers
13k views

Can I grow a pistachio tree from seed?

I live in Las Vegas, Nevada. So I know I have the right soil and conditions to grow pistachio trees. But can I just plant a pistachio seed and grow a tree or do I have to go buy the tree?
6
votes
2answers
150 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 ...
8
votes
3answers
182 views

City wants to remove our White Pines - how should we respond?

We planted White Pine trees 4 years ago they now stand 3 foot high. The city would like us to remove them because they are 6 foot from the street and sewer lines. We feel these trees will never ...
3
votes
1answer
25 views

What's the most hardy red fleshed apple for the Pacific Northwest?

I had two wonderful red fleshed apples in Birch Bay, Washington. We've moved to St. Helens, Oregon and I can't find any here. I'd love to replace them. Does anyone know where I might find these and ...
2
votes
3answers
168 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 ...
3
votes
1answer
100 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
1answer
49 views

How should I transfer swamp oak seedlings from pot to ground?

I have an interesting project going on. I was visiting the 911 Memorial site in NYC last fall. There are many swamp oaks planted on the grounds, and in the footprint of where the twin towers stood. ...
4
votes
1answer
179 views

What is this leaf miner / tenter in my small bush/tree?

I have a small bush/tree. I don't know exactly what it is. What I see is the new growths folded over onto each other, and connected together. When I pull them apart, I can find tiny white worms with ...
4
votes
1answer
146 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 ...
11
votes
2answers
253 views

Hexagonal bush?

I have seen the pictured bush today when hiking around Las Palmas de Gran Canaria. From a distance, hexagonal patterns are visible: Adjacent branches grow in an almost perfect 45° angle relative to ...
4
votes
3answers
360 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?
2
votes
3answers
69 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: ...
1
vote
1answer
59 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
74 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
459 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 ...
5
votes
2answers
365 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 ...
2
votes
2answers
106 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
100 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
83 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
50 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
58 views

Which indoor plant/tree is this?

Can anyone tell me the name of this indoor plant/tree?
4
votes
2answers
965 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
73 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 ...
3
votes
1answer
62 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 ...
3
votes
4answers
111 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 ...
4
votes
1answer
72 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
369 views

Ginkgo Biloba growth rate

For years I dream to plant a Ginkgo Biloba. And the other day I found two ones in a shop. The first one was really cheap, but really little with its head having been cut off... it was something like ...
3
votes
2answers
189 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
2answers
424 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
353 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?
3
votes
1answer
704 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?
2
votes
2answers
63 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 ...
2
votes
2answers
56 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). ...
5
votes
1answer
758 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?
11
votes
3answers
3k views

Can I move a self-seeded oak tree into a pot to keep it small?

An oak has self seeded in our garden. Has got to about a metre tall and seems happy. We don't have anywhere near enough space for an oak but seems a shame to kill it. Can we move it to a pot to keep ...
2
votes
1answer
63 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
92 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 ...