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

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4
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2answers
167 views

Can I cover the roots of my cherry tree? [duplicate]

Possible Duplicate: Raised bed around tree. Do I need to protect the trunk? I want to put a circular bench around my cherry tree but need to make the ground level. It's not level due to ...
5
votes
1answer
220 views

Trimming back a Meyer Lemon tree

I have a Meyer Lemon tree that I brought inside for the winter and am now ready to bring outside. The problem is that there's no good place inside where it would get 100% sunlight, instead only part ...
5
votes
2answers
2k views

How to care for a large redwood?

I just bought a home in the CA bay area. My front yard is dominated by a large redwood tree that seems in good health. I really love the way it looks. By large I mean 5-6 stories in height, planted ...
5
votes
2answers
5k views

Are my autumn blaze maple trees dying?

We live in Oklahoma and planted some autumn blaze maple trees last fall. They seemed to come out of dormancy fine and the leaves were nice and green. We planted them in an area that stays pretty ...
4
votes
1answer
140 views

How to recover a stressed hemlock?

I have a well-established hemlock tree in my yard that has started producing large quantities of cones. This is apparently a result of it being "stressed" (according to a nursery worker and a ...
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?
4
votes
1answer
163 views

What kind of broad-leaved tree is this?

This tree seems like a good addition to a garden/landscaping project, but I've never seen it before. Leaves are turned down. I don't know if that's an aberration for this particular plant or ...
3
votes
2answers
1k views

Tree roots are removing the tiles of my flooring. What to do?

I have a mango tree in my backyard. Recently we are seeing that our flooring tiles in room towards my backyard has started protruding because of the roots underneath. I dont want to cut the tree. Is ...
7
votes
2answers
277 views

Tilling soil around a tree for a raised bed. How much is safe for tree?

The trees are Northern Arizona cedar trees about 1'-3' in diameter at trunk base, have a canopy of 15'-25' in diameter and I wanted to to put in trunk-surrounding raised beds that are 5' in diameter, ...
7
votes
1answer
1k views

Raised bed around tree. Do I need to protect the trunk?

I wanted to put in some raised beds that are about 1' deep above ground, and that wrap circularly around a Northern Arizona cedar tree. Do I need to plastic or a rock/cage around the tree trunk to ...
12
votes
5answers
2k views

What is the best shade tree to shade the front of my house?

What type of tree(s) should I plant to provide the best shade on a two-story house? I would like to provide as much shade as possible on the red square below: The part I'm most concerned about is ...
2
votes
1answer
471 views

How should I go about straightening up my baby trees?

We just had a house built, and in the front and back yards are baby trees. The trees are supported by a large, narrow piece of wood fastened to the tree trunk. A few weeks ago we had a terrible ...
2
votes
1answer
279 views

Chinaberry stump

I had a 30 ft chinaberry removed that the previous owner left for me, four months ago. It had multiple split trunks at the bottom that made every arborist that looked at it concerned, and it was ...
8
votes
1answer
474 views

What is this tree with green spherical fruit?

I have searched everywhere and cannot seem to identify the type of tree this is.
5
votes
1answer
528 views

What is this tall tree with needle-like leaves?

Somebody saw this tree in a park (in Galicia, in northwestern Spain) and asked me to try and identify it. Here are 3 photos of the tree (click on each to enlarge):
3
votes
1answer
559 views

What is this tree with oval leaves and yellow flower?

I'd like now what this tree is in order to find out how to prune and whether or not the shadow of a rubinia close by is a problem as I have the impression the tree is weak (at least it was the case ...
1
vote
1answer
200 views

How can I make my seedling jacaranda recover

I've grown a jacaranda tree from seed a few months ago. It was developing ok until a few days ago when I found it in a really bad condition. I guess it was the cold weather (I'm in South America and ...
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 ...
3
votes
1answer
216 views

What is this small tree?

What it this small tree? It is growing in the woods so I can't get a wide shot. It grows about 15' tall and wide, with wide, arching branches. The leaves all have round shiny indented bumps scattered ...
3
votes
1answer
48 views

Could I have prevented an Emerald Ash Borer infestation?

Our city sent us a letter informing us that the ash tree in our parkway was infested with the Emerald Ash Borer insect. The city removed the tree a few weeks ago. Is there anything I could have done ...
5
votes
3answers
202 views

What are the green shoots coming out from under my tree?

I just moved into my first house, :) and I have two big bushy trees in the front yard. (I'm unsure of the identification for them. Anyone know?) At one time it looks like they were lanscaped, but ...
4
votes
1answer
110 views

Perpetually unhealthy tree. Suggestions? [Pics]

I'd like some help figuring out what the cause of my unhealthy tree is in addition to suggestions on how to fix it. The tree is at least 3 years old; I've lived in the house 2 years and each year it ...
10
votes
2answers
526 views

Does urinating at the base of a tree help it grow?

I've been reading about tree fertilizers and urea constantly comes up as a good source of nitrogen for trees. Let's say your dogs always pick the same tree to urinate on every day. Would that tree be ...
4
votes
2answers
387 views

What's the difference between a redwood and a sequoia?

I was under the impression they were the same thing, but I have a friend who insists they're two different trees. What's the difference, and what's the relationship between the two?
4
votes
2answers
94 views

Are some varieties of Paulownia sterile?

Is it true that some varieties of Paulownia are sterile? And if so, where are they sold?
5
votes
1answer
231 views

What is this woody plant?

I just dug up this tree (I think it is a tree), and I wanted to know if someone could help me identify it. Click for larger images. This woody plant was growing in Illinois near some marshy land ...
4
votes
1answer
333 views

What is the root span of Dwarf Southern Magnolia 'Little Gem'?

I can't seem to find any consistent information on the root structure of these guys. We were given one as a housewarming gift and would like to get it into the ground as soon as possible, however I'm ...
3
votes
2answers
745 views

Is it okay to grow English ivy on the base of a tree trunk?

In one place in the yard, there is a carpet of ivy under a black walnut. Would it harm the tree in any way to let the ivy up to the base of the branches? I would like to do this so that the whole ...
8
votes
1answer
185 views

Are there any tips for helping unhealthy trees?

My new yard has a lot of trees, probably 20-30. There are apple, pear, peach, pine, plum, and a few others. Most of them are fairly old (50+ years). Some of them don't seem to be very healthy (dead ...
5
votes
1answer
509 views

Mushrooms in mulch: that's OK, right?

We gave up on grass for much of our front yard after a disastrously hot and dry summer last year. (I couldn't morally live with the idea of soaking the yard with enough water to keep the grass alive, ...
8
votes
1answer
964 views

How can I love a Silver Maple?

I'm reading this question What is the average lifespan of most maple trees? and the answer mentions: Silver maple 100 years (I cannot imagine why you would want to plant this species) followed ...
4
votes
2answers
93 views

How do I start tree seeds?

I've got some thornless honeylocust seeds (about 20). They've been stratified, and I'm ready to plant, but I'm not sure what the best approach is. I haven't started trees from seed before. Will they ...
4
votes
3answers
1k views

What is the best species of grass to grow around a black walnut tree

I love my black walnut tree. I almost love it as much as I hate it, but it's beautiful. However, grass refuses to grow around it even though my wife and I are adament about cleaning up leaves and ...
10
votes
1answer
17k views

What is the average lifespan of most maple trees?

In general how long do maple trees live? Does the lifespan vary a lot according to species? I'm thinking of planting a few in my yard and I'm wondering how long they will be around.
2
votes
2answers
354 views

What is wrong with this Norway spruce?

This Spruce tree is very odd. I have a few questions about it. First of all, how did the branch segment pictured below grow there? It grows right out of the smaller trunk into the larger one, without ...
4
votes
2answers
986 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 ...
4
votes
3answers
205 views

Why is the ground moving around my tree?

Quick question. There are 3 tree surgeons in my local area and none are available today... I have a tree which is about the height of my house. If I wrap my hands around the trunk the trunk is about ...
4
votes
1answer
1k views

Is it a good idea to build a paver patio near a large established tree?

I would like to build a paver patio next to a large tree that has a 3" wide root at ground level. I do not want to damage the roots of the tree, so it seems like my only option is to build a raised ...
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
85 views

Can multiple arborvitaes be made to grow uniformly to the same height?

Arborvitaes grown in rows often grow unevenly with some growing twice as much as others of the same age and with the same care. Is it possible to prevent this, and make all the trees in one row look ...
7
votes
1answer
134 views

What problems can come from a tree with its graft union 5 inches above the soil line?

I planted a grafted apple tree in a pot and shortly thereafter realized the graft union is about 5-6 inches above the soil line. My gardening books and online searches recommend the union be no more ...
5
votes
1answer
344 views

What is this tree with dark, broad leaves?

Well, the new house has a mystery tree. Our initial guess was some form of a broad leaved ligustrum. It appears to be evergreen - no leaves have been lost yet although the neighboring peaches have ...
8
votes
2answers
296 views

Is an olive tree frost resistant?

Is an olive tree frost resistant? I have a small olive treet planted in a flower pot. There are small flies that put their larvae into the soil. Usually they are gone when the flower is outside for ...
4
votes
1answer
770 views

What is the best way to keep a tree growing straight?

When most trees get over ten feet tall, they seem to be trying to grow every way but up. Staking would be impractical because of scale, and pruning often helps but does not force the tree to grow up. ...
5
votes
1answer
420 views

Can I get rid of sap stains on my mulberry tree?

My mulberry tree was leaking sap earlier and it left ugly black stains down the trunk. The tree has deeply furrowed bark. Can I remove this?
6
votes
1answer
431 views

Is it possible to graft fruit/flowering trees onto a well established jacaranda tree?

I have a large jacaranda tree in my front yard (perhaps 30-50 yrs old). I recently pruned a few branches that were about 2" thick. You can see one fresh cut in the picture below and there are a few ...
9
votes
1answer
394 views

What causes spruce branches to drop their needles?

I have a spruce tree that has a problem. Every year, some branches suddenly drop all of their green needles and die. I would like to prevent this, but I don't know what the cause is. What causes this ...
6
votes
1answer
971 views

Why didn't my maple leaves change color in the fall after transplanting?

I just bought and planted an October Glory maple sapling with a trunk about 1.5" in diameter. I did everything the nursery worker told me to while transplanting it: I dug a hole twice as wide as the ...
8
votes
1answer
984 views

How to tell a nectarine tree from a peach tree?

Nectarines are actually peaches with an active recessive gene (e.g. similar genetics to red hair in humans). Commercial nectarines are cultivars with this gene. Although it is relatively rare, in ...
5
votes
2answers
684 views

What time of year to mulch/feed trees?

This answer recommends putting down a layer of compost mulch in the fall in order to slowly feed the tree. (In addition to the unmentioned weed control and moisture regulation.) It makes sense to me ...