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

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Can I graft a Navel or Valencia orange tree onto an established citrus tree?

I have a mystery citrus tree that bears sour and almost inedible small oranges. This tree is about 10 years old. I'd like to cut-off its branches and graft on branches from a Navel or Valencia orange ...
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63 views

Identification of tree with trilobate leaves

Can somebody help me identify this tree found in Sicily? It is a fairly big tree (8-10 m) with a broad canopy and trilobate leaves. Fruits are also shown in the picture. thanks!
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2answers
178 views

What is this white flowered tree?

Could anyone identify this white-flowered tree please (planted in the UK), I was told the name and I think it begins with an 'S' but I can't remember it
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167 views

How should I care for newly planted saplings on a slope?

Me and couple of my mates are trying to plant few trees on a hill slope before the wet season (monsoon) sets in India (early June). The hill has been devoid of trees due to excessive felling in last ...
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271 views

Which end is up when planting a mango seed?

I have a seed that has already germinated. I've had it in water for a day and it has already grown some in the water. One end has a slight purple color to it, the other one is long and white. Which ...
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127 views

How to best care for mature trees?

I've got several mature trees in my yard. I just moved into the home and for the last two years not a lot of care was given to the trees. As a first step I've removed all the trees that were scattered ...
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428 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 ...
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1answer
236 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 ...
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66 views

Why does the tree trunk grow in diameter?

Why does the tree trunk grow in diameter even though you cut the roots and tips of branches?
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105 views

How can I manage a weeping willow with a broken branch?

I have a very mature weeping willow in the front garden which was well balanced and with the recent storm one of the main branches broke off. I noted that branch had a weakness, due to rotting from ...
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75 views

How to grow an olive tree?

I would like to grow a small olive tree in my balcony. Preferably I would not like my tree to grow larger than 2 meters tall and gives me nice organic olives. Length can also be controlled by the size ...
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909 views

What is the name of this tree found in Switzerland?

What is the name of this tree? They are quite common in Switzerland. The second picture refers to Lugano. Here a couple of pictures in summer (with leaves):
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182 views

Can this tree be an eucalyptus tree growing in Central Europe?

I have this tree in my garden. The previous owner, who planted it, told me it is a kind of eucalyptus. When rubbing a leave between the fingers it indeed has the smell I know of eucalyptus-sweets. 3 ...
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590 views

How far apart should I space Thuja 'Green Giant'?

If I wanted to plant several Thuja plicata x standishii 'Green Giant', how far apart should they be placed, or does it matter? Some evergreens seem to like being planted close together (and growing ...
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2answers
576 views

Do I need to change the irrigation for my Shamel Ash trees?

I have three Shamel Ashes in my yard, all planted at roughly the same time and all irrigated in the same way. Despite professional care they haven't shown any substantial growth in over a year. If ...
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1answer
68 views

How can I determine the variety of an apple tree that hasn't fruited?

Perhaps 10 years ago I planted several apple trees on my farm. These may have been bought at the local blue or orange store and I've long since forgotten the varieties planted. I didn't keep such ...
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415 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 ...
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742 views

Remove beautiful Weeping Willow or grind the roots?

We have a beautiful weeping willow that is wreaking havoc everywhere. It grew incredibly fast and its roots are traveling into neighbors yards, which makes them very unhappy. We lose a lot of limbs ...
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192 views

What options except cutting the tree down do I have if a fir tree is growing too high?

There's a fir tree that is now about seven meter tall and continues to grow and will reach something like 20 meters height. The tree is too close to buildings and too close to plants and so the shadow ...
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2answers
14k views

Why is my pine tree turning brown?

I have 4 pine trees (not sure the type but they look like Christmas trees) in my back yard. They were planted at the end of May by the people that we bought the house from. One of them has turned ...
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1answer
92 views

What type of fruit tree is this?

This tree is growing in Escambia county(in panhandle of Fl). It is, roughly measured by comparing to our 6ft tall fence, about 10-12ft tall. It is growing in my neighbors yard but it grows over the ...
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34 views

Can a newspaper layer underneath mulch be harmful to trees

To help control weeds in garden beds between my plants I have put newspapers down on the ground and added a layer of mulch over this. I have also done this where there are trees in the garden beds (...
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55 views

Tree roots in storm drain

A 12" square catch basin collects water from my driveway and transports it under the lawn to adjacent stream about 150 ft away via 4" corrugated buried pipe. They used corrugated covered w/stone (vs ...
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134 views

What are these trees in the front of the picture?

Here are the trees I'm wondering about: They are growing in Hong Kong. They have moderate length leaves pointing downwards, and are twice as tall as road signs. They look like young palm trees, ...
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385 views

Should I plant a Common Hackberry tree in my front yard for shade?

My front yard (in Northern New Mexico, zone 7a) is in desperate need of a shade tree. The soil is relatively poor and there's not a lot of water. I'm making a list of trees that I think would work in ...
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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 ...
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150 views

Relocating an apple tree - when should this be done?

A long time ago (about ten years), I put some apple seeds in the ground, and now I have an apple tree. The only problem is that it is too close to the neighbour's house, and might do some damage to it ...
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89 views

What to look for in a good electric chainsaw?

I will need it for clearing large tree limbs and small trees, mostly for storm cleanup in a medium sized yard surrounded by mature, healthy trees. I am looking for recommendations for safety and ...
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92 views

Leafiest Tropical Tree

I currently live in tropical country Philippines and I would like to plant or graft the most leafiest tree serving 2 purpose; first to have a better shade, like I said we live in a tropical climate ...
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545 views

What is this white fuzz on my oak tree?

Do you have any idea what this is on my oak tree? We are in the middle of a drought in Central Illinois and I've been seeing this on the back of my leaves.
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454 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 ...
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2k views

What are the odds of getting a shea tree to grow in South Carolina, USA?

What are the odds of getting a Shea Tree to grow in South Carolina, USA? Temperatures here in SC range from mid 30s (occasionally around 40) Centigrade in the summer to -10 at the coldest days of the ...
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110 views

What Would Be A Good Shade Tree for Oakville, Ontario, Canada?

Shade Tree questions I'm looking to get a new tree for our backyard to provide a bit more shade throughout the summer. I did some searches around and on this site, got some ideas, but would still ...
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64 views

What methods can be used to apply an antifungal to the interior of a tree?

Diseases such as the Blue Stain Fungus infect trees from the inside out due to inoculation by host insects. Are there any effective/standard methods for applying antifungal compounds to infected trees?...
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135 views

Pruning overgrown pear tree

I just moved to a new house and discovered I have a few fruit trees. At the end of fall I found a pear on one... Looked to me like a Bosc pear but not sure. I want to bring it back and hopefully enjoy ...
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1answer
74 views

Propagate an apple tree

What is the best way to propagate an apple tree? I'm thinking the best way might be to cut off a small twig and splice into another tree, but what kind of tree would be good for this?
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797 views

Need some help identifying a plum tree

Location: Maine Fruit: very small - blue/purple, small, oblong Blooms: small, white Leaves: small Tree: more bush like - no single trunk, 4-5 main branches split off at base at ground 10' tall/...
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484 views

What are these red “quills” on my willow tree?

I just noticed several clusters of red "quills" which sort of look like small buds on the main trunk and the two largest lower branches on my weeping willow tree. The little growths are red and ...
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2answers
14k views

How can I get lemon trees to bear fruit?

I have a couple of lemon trees (small plants really) in my garden. But they seem to grow at an awfully slow pace.They are about 2 years old & about 3/4 ft in height. I have seen pictures of lemon ...
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1answer
191 views

Landscaping to Reduce Visual Size of Home

We are building 2-story home (~2300 sqft) in a neighborhood of mostly 1-story homes, and typically less square feet, and no large attached garage. Needless to say, with the extra square feet, and ...
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49 views

What tree is this?

What is this tree? It looks a bit like a lavender but it doesn't really have a scent (and it's a tree!).
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29 views

Camellia losing its leaves

I had two camellias planted in November (spring) by my landscaper, from the same nursery. They've been fertilised the same at planting and watered the same, and are only 3 feet away. One is losing ...
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131 views

What is this small tree found growing from a wall?

I've found this plant growing in a crack in the wall. I then put it in a pot and is growing fast. Can anyone help me identify it, I live in Buenos Aires, Argentina. This is how it looks now (2016-2-...
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99 views

What is this tall tree growing in London?

Can anyone help me identify the following tree? Any help would be gratefully received. *Note: This may be a similar, or identical, species to another tree I am trying to identify. See this question....
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1answer
149 views

How much should I water an avocado plant guided by a moisture meter?

I have a moisture meter that registers readings from 0.0 to 9.9 (driest to wettest). I cannot find a listing for a potted avocado tree. Can you give me info as to what percentage is optimal for the ...
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1answer
381 views

When to transplant spruce tree sprout from a small bucket

I have a small sprout (30‒40 cm) of some species of spruce tree that is native (or at least welcome) to the Rocky Mountains of North America (purchased from the local Fish and Game Department’s nature ...
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1answer
179 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 tree-...
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648 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):
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143 views

How much water should I give to a 20 foot Italian Cypress tree?

I have an Italian cypress tree in my backyard which is about 20 feet tall. How much water should I give it? Also, how frequently should I water it? I should point out a big caveat. The tree is ...
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113 views

Will the roots of my Columnar Yew Tree damage a foundation that's only three feet away?

I have a columnar Yew which currently is about 18 - 20 feet tall with a spread of about 6 feet. What is the root system like for these trees and what effect will/can it have on the foundations of the ...