Questions tagged [trees]

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

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32
votes
3answers
4k views

How can I revive a tree that's been stripped of bark?

I've got what I think is a cedar tree in my backyard that is missing most of its bark on one side from the ground to about 4' up. (Thanks to my puppy who is a shredding machine.) The branches next to ...
27
votes
5answers
4k views

What is a fast-growing deciduous tree for shading house in summer? (Long Island, NY)

My town recently took down a large 80 year old maple tree that sat on the south side of my house. Unfortunately that tree provided much-needed shade and now I have already noticed very high ...
26
votes
7answers
1k views

How is an Avocado plant started?

I find ourselves buying one or two Avocados twice a week. It's one of these things that I've been wanting to do for a long time: grow an avacado plant. What is the ideal climate or exposure to ...
25
votes
4answers
6k views

Is staking young trees helpful or harmful?

I frequently see small trees staked with some support twine or rope, presumably to aid against strong winds. However, I've heard or read somewhere that staking small trees can actually be harmful, ...
23
votes
3answers
116k views

Can I cut off exposed tree roots without harming the tree?

Large trees often have roots protruding out of the ground around the base of the trunk (such as the ones that can push up sidewalks next to the tree). When is it safe to cut those roots (that might be ...
21
votes
6answers
590 views

How can I naturally encourage birds into my garden?

We love having our garden filled with birds, thus we have put up a variety of bird feeders. We also make lots of water available for the birds. The result is a 2½ year old that can identify about ...
19
votes
2answers
7k views

Will dumping paint destroy a nearby tree?

One of my neighbors complained that another neighbor killed a tree in front of her home by dumping paint in the soil. (Never mind that his trees are fine and there seems no way the paint could be ...
19
votes
1answer
105k 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 ...
18
votes
7answers
30k views

Will I get lemons from a tree grown from a lemon seed?

I have planted seeds of a lemon and want to know, if I have to graft the lemon plant so I can get lemons? Or will they in time grow without grafting?
18
votes
3answers
9k views

Will a cedar tree grow new limbs?

I've got a cedar tree that divided into two smaller trees, and the previous owners tried to keep the twin trunks together by tying a rope around them. The rope eventually strangled one of the trunks, ...
17
votes
7answers
5k 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 ...
17
votes
5answers
6k views

Should I remove the tree roots coming from the neighbouring garden?

When I was digging out* a patch to grow veggies earlier in the spring I found big roots in the soil unconnected to anything in our garden. It looks like they're coming from some kind of palm trees ...
17
votes
1answer
4k views

Best help for a tree with stunted growth?

I have a few trees on my property which are at least five years old (sorry I don't know the kinds yet). Compared to other trees in neighboring lots, planted at the same age at the same time, they are ...
17
votes
2answers
7k 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 ...
17
votes
1answer
66k 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.
17
votes
1answer
2k views

What are the ideal soil conditions for planting giant sequoia saplings?

I've already germinated giant sequoia (Sequoiadendron giganteum) seeds for 6 weeks. What's the ideal soil conditions for planting the saplings?
16
votes
5answers
108k views

How far (on average) do tree roots extend out from the base of the tree?

I a looking to plot out my new garden site for next year and am wondering how far I need to be away from some nearby trees. The trees are a few different types (apple, oak, pine etc.) and anywhere ...
16
votes
5answers
12k views

Can I grow a fruit bearing pistachio tree?

I live in Zone 7 in Northwest Texas. It's pretty dry here and the soil is mostly hard clay. I'm very interested in growing fruit bearing pistachio trees, but haven't been able to find any local ...
16
votes
3answers
3k views

Is it possible to indefinitely limit the growth of trees, hedges, and shrubs?

Now that I've lived in my very nicely landscaped first home for over 10 years, I have several "overgrown" trees, hedges, and shrubs (mostly, but not all evergreens) in my landscaping, and at this ...
16
votes
4answers
28k 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 ...
16
votes
2answers
487 views

What is this Vine-type plant growing on my Jacaranda tree?

I have a vine-type plant that is growing on areas of my Jacaranda tree (me + the tree live in Australia). It has little leaves. The roots of the vine grow on the outer-layer of bark on the tree. Does ...
16
votes
2answers
2k views

How do I prevent the seeds on my Japanese Maple from falling off?

I have a 6 ft tall 'Bloodgood' Japanese Maple in my yard. It gets a lot of afternoon Californian sun, but the leaves are a nice color and are healthy. I wanted to collect some seeds this fall (to try ...
15
votes
6answers
18k views

How to deal with suckers on a Bradford Pear Tree?

I have two Bradford Pear Trees at the front of my yard. They were planted ~1997. (The HOA requires all lots in the development to have them.) Little sprouts that keep popping up from the ground ...
15
votes
2answers
170 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 ...
15
votes
2answers
5k views

Will it kill my potted tree if I use tree fertilizer spikes?

I recently bought some tree fertilizer spikes to feed my potted dwarf kumquat and lime trees. After I got them home, I read the following warning on the side of the box: NOTE: Never apply within 30" ...
15
votes
2answers
7k views

Should trees be staked when they are planted?

Horticultural practices do change and research can be a driving force. It wasn't too long ago that standard practice to stake a new tree was a six foot T bar and and a strand of wire. Should all ...
15
votes
1answer
1k views

What are these red cocoons in my trees leaves?

The tree In my garden as lots of red cocoons on its leaves, I assume these are insects, do I need to be concerned or are they harmless?
15
votes
5answers
1k views

What is this cone-shaped tree?

This tree is growing in a garden in Johannesburg, South Africa. I'm pretty sure it's evergreen (turns out it's not). I'm not sure whether or not it is indigenous to this area. Click on pictures for ...
15
votes
1answer
2k 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 ...
15
votes
1answer
348 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 ...
15
votes
1answer
421 views

How are Japanese Maple Trees cultivated?

I have mature Japanese maple trees in my yard that are extremely fertile. I find dozens, if not hundreds of saplings all over the yard. Some have even grown several feet tall. Is there a way I can ...
15
votes
1answer
248 views

Please help me identify this tree with irregular leaves

I found this tree growing on a farm on the outskirts of Johannesburg, South Africa. p.s. The pink fabric is not part of the tree :p
14
votes
3answers
42k 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?
14
votes
1answer
1k views

What are these brown, cap-shaped mushrooms on my birch tree?

I live in Massachusetts and have several birch trees in my yard. One of them has brown, cap-shaped mushrooms growing in groups up and down the trunk. As you can see, the tree has a big crack in the ...
14
votes
3answers
11k 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, ...
14
votes
3answers
16k views

How should I prune this overgrown pear tree?

I have a pear tree, which is very zealous. Whatever it decides to do, it does in excess. First in the spring it sends out all sorts of new branches--all of them vertical. I snipped them off after they ...
13
votes
3answers
5k 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 tree ...
13
votes
3answers
330 views

What are the best practices for keeping trees healthy in a construction area?

I frequently see trees that are in construction areas where roots have to be pruned or grade changed. What practices are most likely to keep trees healthy in the long term where there is root or ...
13
votes
3answers
1k views

How to deal with invasive Ailanthus (Tree of Heaven)

My neighbors have a great tall Ailanthus (Tree of Heaven). Apparently, before I moved into my house, so did our yard. We now have an enormous stump and a bazillion new shoots that come up from ...
13
votes
3answers
4k views

How can I control Viburnum Beetle on my Snowball tree?

I have a mature Snowball tree (Viburnum opulus) that is stripped of its leaves and severely weakened several times a year by the viburnum beetle. The Royal Horticultural Society recommend several ...
13
votes
1answer
816 views

Why does my lemon tree have multi-colored leaves and strange-looking fruit?

The leaves on my lemon tree are yellow and white, and the fruit doesn't look normal.
13
votes
3answers
2k 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 ...
13
votes
2answers
845 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 ...
13
votes
1answer
3k views

Is there a traditional method/style for pruning a Chocolate Silk tree?

I have a containerized Chocolate Silk (a.k.a. Summer Chocolate) tree that is two years old (i.e. it was planted in its present container from a branchless and rootless stalk two years ago). It has ...
13
votes
1answer
1k 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 ...
12
votes
4answers
6k views

Any way to save a large tree that's starting to split/crack down the middle?

I have a large tree in my front yard and last fall I noticed a crack down the middle. Six months later, it appears the crack is getting larger (see pictures below). Is there any way to save the tree, ...
12
votes
2answers
1k views

Help identify this tree

Hello botanists and the like, I was hoping for some assistance identifying a quite striking tree. This particular one is in Commonwealth Park, Canberra, Australia - but it doesn't seem like a native....
12
votes
4answers
2k views

Why shouldn't I water a Blue Spruce tree during and after transplanting it?

I live in Massachusetts, Northeastern United States, in Hardiness Zone 6, where the temperatures get down to −10°F (−23.3°C). We're getting to the coldest time right now, although so far this year has ...
12
votes
2answers
711 views

How does tree sap go up

How does tree sap go up very tall trees? I would guess capillarity probably plays an important role; I read online that the production of sap generates CO2 which helps building pressure, but I would ...
12
votes
1answer
538 views

What is a good method for planting Ball and Burlap trees?

This is when the tree is dug (usually using a tree spade), and the root ball is wrapped in burlap for short term storage. It can be in a wire basket, usually if the ball is large. The burlap is ...