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

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6
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1answer
234 views

How do I treat and care for trees infested with borers?

One of my apple trees recently started to look like it's dying (leaves dying when they shouldn't, bark peeling, lack of fruit, new branches growing and then quickly dying). My neighbor looked at it ...
9
votes
1answer
1k 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
1k views

What happens when a chainsaw chain meets a nail or piece of steel wire when cutting through wood?

Assuming any of the following: there's an unnoticed steel nail in a log used in some structure or there's an unnoticed steel nail in a tree body (often happens when people attach illegal ads to ...
3
votes
2answers
173 views

Which high-desert-friendly tree should I plant beside my driveway?

My property (New Mexico, climate zone 7a) has a patch of ground between my driveway and a fence that's begging for a tree to be there. It's about 11 feet wide. Apparently a tree was there before, as ...
9
votes
1answer
1k views

What are the best deciduous shade trees for Phoenix, Arizona?

I'm looking for a medium sized deciduous shade tree to plant in Phoenix, Arizona to shade part of my house. It needs to be deciduous so that it will let the sun through in the winter and provide shade ...
4
votes
1answer
124 views

Are these trees some type of poplar?

Here are a few pictures of some trees in my yard. I am trying to determine what type they are. I'm fairly certain they are some type of poplar tree. But I am not sure of the specific type. This is in ...
2
votes
1answer
2k views

Is it normal for palm trees to drip a brown gummy sap?

Our apartment in Tenerife has palm trees surrounding it and these trees are continuously dripping a brown gummy substance, we presume from their leaves, onto our tiled floor. We are informed that ...
5
votes
1answer
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, ...
5
votes
2answers
293 views

How do I get ready for a stump grinding, and how long afterwards should I wait to replant?

The city has cut down my dead ash tree and are coming to remove the stump (I believe by grinding). They have advised me to "remove landscaping features" so they aren't destroyed in the process. How ...
5
votes
2answers
578 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 ...
2
votes
1answer
108 views

My Emerald Arborvitaes are Yellowing on the Inside! [duplicate]

I live in Utah and the weather is getting a bit colder. About a month ago all my of trees were going very strong, all green throughout, but now they are starting to yellow from the inside out. This ...
6
votes
1answer
732 views

Cedar Hedge drying from the inside

We planted a cedar hedge this spring (4 months or so ago). The trees were fine this summer, some of them had one or two dried branches; nothing out of ordinary. At the end of the summer, some trees ...
4
votes
3answers
258 views

What's wrong with this Photinia fraseri tree?

I've got three Photinia fraseri trees in my yard in Tucson, Arizona. They were planted last May (2013) and now in September (2014), one of them is turning entirely brown and losing all its leaves (...
6
votes
2answers
126 views

Is early October too late to plant a Pussy Willow in southern Ontario?

I have a pussy willow that has rooted. It was part of a floral arrangement that I used to stage my condo while I was selling it. Now I have moved to a house with a garden so I would love to plant the ...
3
votes
1answer
691 views

Can the roots of a Redwood tree lift up the foundation of my house?

I have a large (80 years old) Redwood Tree in my front yard, approximately 10 feet from the house. My house is a ranch style house and I can see the roots of the tree go under the house in the front ...
3
votes
2answers
744 views

Which species is this Eucalyptus?

I noticed this spectacularly blue Eucalyptus tree growing in Seattle (USDA zone 8). It is partially shaded by a large Douglas fir and a building. Does anyone know Eucalyptus well enough to identify ...
4
votes
3answers
751 views

Should I remove the suckers from the base of my new tree?

I bought a new tree this summer. Lately I've been seeing this little sprouts coming out of the very base of the tree. Should I chop them off or leave them? What will happen to them over time? Also, ...
3
votes
1answer
243 views

Is it important to deal with gall wasps on oak trees? If so, what is the best method?

Gall wasps are a common problem here on the east end of Long Island. Oaks are a dominant species around here, and many clients rely on them for shade around their houses and yards. What should be done ...
3
votes
1answer
100 views

Should I be concerned about twisted galls on my lombardy poplar trees?

We have lots of large twisted galls on our lombardy poplar trees' leaf stems. I've heard that twisted galls on poplar trees are not a threat to the tree. So, I'm not worried about them killing the ...
5
votes
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 ...
5
votes
1answer
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 ...
2
votes
1answer
140 views

Will coppicing a Siberian elm tree get rid of bacterial wetwood (slime flux)?

Will coppicing a Siberian elm tree cure it of bacterial wetwood or slime flux? I know you can coppice Siberian elm trees and they will grow back (if what I've read about people trying to kill the ...
13
votes
1answer
1k views

How do I know if a fertilizer treatment is burning my trees?

I started using fertilizer spikes on my dwarfed citrus trees in small pots. (Details may be found in this question.) As suggested, I used half a spike for each pot and I put the spike as far from ...
0
votes
1answer
68 views

In graft hybridisation does a younger stock facilitate more extensive hybrid effects in the scion?

There are anecdotes and articles where one kind of tree fruit scion has been grafted to the stock of another kind, perhaps with an interstock, and properties like flavour and shape have been affected (...
4
votes
2answers
74 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 ...
6
votes
3answers
658 views

Do pine beetles kill healthy pitch pines, or is it safe to plant seedlings to replace trees killed by them?

We need to remove a number of trees that have been killed by some kind of pine beetle - presumably black turpentine beetle - on eastern Long Island. These trees had suffered injury from salt spray ...
5
votes
2answers
596 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 (1-...
5
votes
1answer
169 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 ...
5
votes
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
4
votes
1answer
293 views

Why Do Trees In Swampy or Wet Areas Change Color Earlier?

Not a gardening question per-se, but I believe this is the best exchange for it. It had been my observation here in the northern temperate zone that trees growing in low-lying, wet areas change to ...
4
votes
3answers
482 views

Can I cover mature tree roots with fresh wood chips?

We are having trees trimmed and the branches put through a wood chipper. Can we use the resulting mulch to cover exposed roots on mature trees as soon as the come out of the chipper?
3
votes
1answer
402 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 ...
6
votes
2answers
883 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) they'...
3
votes
1answer
166 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.
3
votes
1answer
115 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 ...
3
votes
1answer
406 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 ...
11
votes
2answers
4k 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, ...
11
votes
3answers
3k 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 ...
3
votes
2answers
494 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
309 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
175 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, ...
8
votes
3answers
333 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 ...
2
votes
3answers
256 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
200 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 ...
3
votes
1answer
96 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
208 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
1k 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
394 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
1k 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?
1
vote
1answer
2k 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 ...