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

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4
votes
1answer
108 views

Why are my avocado's leaves drying out from the edges?

I recently moved into a house in the South SF Bay Area in California, with three large avocado trees. I've noticed that the leaves on one of these trees is drying out from the edges: Here's another ...
4
votes
2answers
55 views

Questions About a Sycamore Maple

I just bought a house that has a Sycamore maple in the backyard. My questions are: What is the life span for this particular type of tree? when is a good time of year to trim the branches and a ...
3
votes
1answer
57 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 ...
2
votes
1answer
27 views

Crepe Myrtle and Pink Magnolia Trunk Question

I have a question about two of the trees in my yard. I have the same issue and question about crepe myrtles and pink magnolias. I have two of each in my yard and they all have multiple trunks coming ...
10
votes
5answers
5k 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 ...
2
votes
2answers
52 views

How can I revive a Meyer Lemon Tree with no leaves?

Here is what my Meyer Lemon Tree looks like: No leaves anymore. Is there a chance that it will ever revive itself?
3
votes
3answers
193 views

How to stimulate basal growth in a tree?

On my street lots of trees have a big burl at the base. Is there a technique to "encourage" trees to develop it?
2
votes
1answer
29 views

White spruce problem (yellow needles)

I bought this small spruce for Christmas (the label said it will grow up to 1m tall), it's a Picea Glauca 'conica'. I recently replanted it in a bigger container, because it looked quite ...
4
votes
1answer
56 views

Is there a way to straighten an older tree that started crooked?

I have a pecan tree that is about 6 years old that is growing about 5 degrees off vertical. I've tried to stake it several times but to little effect. Currently I have a ratchet strap trying to pull ...
6
votes
5answers
2k 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 ...
3
votes
1answer
71 views

Have I damaged my apple tree by cutting off a root?

I have just had an asbestos garage removed, and am having a shed put up in its place. The concrete base to the garage was cracked right through by my apple tree roots, the concrete has been removed ...
6
votes
2answers
2k views

Is there a way to save this half-dead evergreen tree?

I just moved into a home and this tree is planted in the yard. Half of it seems to be in good shape but the other half has no leaves and seems dead. I'm not sure what, if anything, I can do to save or ...
5
votes
1answer
107 views

Is it possible for an almond tree to grow in a tropical country?

I have been searching in Google, but I got neither information or reference regarding this issue. I'm wondering is it possible for an almond tree to grow in a tropical country such as Indonesia? If ...
12
votes
7answers
3k 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 ...
4
votes
2answers
79 views

Where, when, and how can I plant magnolia trees?

I'd like to plant a magnolia tree at the edge of the garden where it meets the concrete of an adjacent parking lot. There is clear morning sun. Light from the South and West is somewhat obstructed by ...
4
votes
1answer
56 views

What is this shrub/tree with small green drupes in southern Texas?

I'm hoping someone can help me identify this shrub/tree. We recently purchased this property and are still trying to figure some plants out. We live in deep south Texas, zone 8/9 but there are many ...
4
votes
2answers
58 views

Bonsai from tree cuttings

Is there a way to make a bonsai from a normal tree cutting (not from a bonsai cutting)? I was just thinking for instance of making a bonsai maple from a normal size field maple, or ash, etc. What ...
3
votes
2answers
121 views

How should I deal with my willow tree that has been butchered by the council?

This willow tree was pruned, and cut back to stump. I believe that whoever was cutting the tree didn't know what he was doing. Today we returned home and were hugely shocked. The willow tree was ...
4
votes
2answers
69 views

Growing trees from seed & cuttings

I would like to learn and compare the different methods to grow trees from seeds. I found a good website (http://treegrowing.tcv.org.uk/grow), and one book, but the latter seems to be good for ...
3
votes
2answers
32 views

Is it too late to plant my avocado plant in soil?

I have had my avocado plant in water for 6 months now on my window sill and it has grown to be about 30cm. However the bottom leaves are hanging and have slight brown spots, the second set of leaves ...
4
votes
4answers
190 views

Can trees be propagated from cuttings without roots or leaves?

It's well known that many tree species can be propagated by taking stem cuttings. It's also well known that many tree species can grow new stems and leaves after having the trunk cut. My question ...
8
votes
2answers
2k views

How do I prune a cherry tree to keep it short?

I've just planted a new cherry tree, and I would like to keep it short enough to be able to harvest the fruit with nothing more than a step ladder. Seeing as I've just planted it, I feel that I ...
5
votes
2answers
51 views

white material on roots of apple tree?

When I dug up a young apple tree to move it to a sunnier location, I noticed some sort of white material on the roots. Is this cause for concern?
5
votes
3answers
172 views

What is this large, woody plant with compound leaves, found in zone 6a?

In the early summer of 2014, I was on vacation in Pine Grove (PA), and saw this large plant by the side of the road. It is huge. For scale, the pokeweed in the pic is about 7' tall. This weed is ...
3
votes
1answer
35 views

Index of photoperiods

I planted a Sequoiadendron giganteum (Giant Redwood) sapling today, and I was wondering how many hours of daylight the little guy needs. I found this answer, which mentioned photoperiods of different ...
12
votes
3answers
21k 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
1answer
51 views

How often can I harvest coppiced black-locusts?

I would like to coppice some black locust trees (Robinia pseudoacacia) for fence post production. The conditions are fairly good. This is USDA hardiness zone 6b, with good clay based topsoil, and ...
20
votes
5answers
3k 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 ...
3
votes
2answers
176 views

Is dolgo crabapple a dwarfing rootstock?

Emerald Spire crabapple is produced by grafting onto Dolgo crabapple stock. I know that apples are commonly grafted onto crabapple rootstocks to dwarf them. On a Dolgo root stock the tree nominally ...
4
votes
2answers
81 views

Can I allow a pine tree to share root space with a group of birch trees? If not, which should I cut down?

I have a group of birch trees, with a pine growing in the midst of them, in my front yard. My friend is telling me the pine must be cut down to save the birches. I see her concern, however: I think ...
5
votes
2answers
197 views

How can I help my young mulberry tree grow a thicker stem?

I have my young mulberry tree, which is a little more than a year old. I grew it from a seed, and have it indoors in a large pot at the moment. It is growing tall and thin, needs a stick to support ...
3
votes
2answers
53 views

How should I deal with carpenter ant damage on my old almond tree?

I have an almond tree on a house I purchased. The tree looks very old and the large bulk of it didn't have much green - looked very dead. It was growing sideways and near the base of the tree some new ...
3
votes
3answers
74 views

Can I use 12-6-9 fertilizer sticks for a Ficus Bonsai?

I have a bunch of plant food sticks described as "compound organic and inorganic NPK 12-6-9 fertilizer with micronutrients for ornamental plants". I wonder if this is suitable for a Ficus (Ginseng?) ...
6
votes
1answer
124 views

What does 'standard' mean when referring to shrubs and vines?

I often see shrubs and vines for sale labeled as 'standards'. What does that mean? Examples: Roses Rose of Sharon Trumpet Vine Wisteria And so on.
18
votes
4answers
581 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 ...
5
votes
1answer
77 views

What is the name of this tree? - currently a bonsai

I'm trying to find the name of this tree. It's currently a bonsai and isn't doing very well, indoors or out. It came with no identification and very basic instructions like "don't let it dry out." ...
9
votes
1answer
538 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 ...
6
votes
3answers
388 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 ...
4
votes
1answer
40 views

Should I remove brown, cap-shaped Birch Polypore mushrooms from my tree?

I learned from this question that my birch tree is infested with Birch Polypore mushrooms. For two reasons, I'm wondering if I should remove them. First, even though they grow because the tree is ...
6
votes
2answers
3k 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 ...
-2
votes
1answer
66 views

Why is my lemon tree losing leaves after I gave it tomato feed?

There are pale blotches on the leaves of my lemon tree. There are no pests or mites, but all leaves have fallen from tree. I have tried a tomato feed with no results.
2
votes
1answer
47 views

What is the best growing temperatures for an avocado plant?

I live in a very warm climate (Phoenix AZ) and I was wondering what the best growing conditions (temperatures) are for an avocado plant? Are the extreme heat summers here to much for an avocado? We ...
3
votes
1answer
80 views

Is it really that important to prune deadwood from trees? If so, why?

It seems like every time we bring arborists onto a property, the first thing they want to do is to remove all the deadwood from the tree canopies. What are the reasons for doing this, and is it really ...
1
vote
1answer
404 views

How can I save my dying palm tree?

My palm tree started to become yellow in the last couple of months and I don't see any improvement. I've tried with some spike fertilizers for palm trees, but didn't seem to help. Here are some ...
4
votes
2answers
349 views

Bay Leaf Tree (Laurus Nobilis) with severe scale

I'm new to gardening as I have just bought my first house. I inherited a very large (about 6m tall) Bay tree that is severely sick. I took a sample to my local garden center and I was told that it ...
5
votes
2answers
83 views

Can I water indoor fruit trees with aquarium water?

I have kiwi, lemon, orange, mandarin and avocado trees, grown from seed from normal fruit which I have eaten. I also have an aquarium with turtle. I've treated aquarium water with ReptoSafe and ...
4
votes
1answer
61 views

How do I take care of my very small Kaffir lime tree?

What is the general care of Kaffir lime (Citrus hystrix) trees? I have a very small tree that I'm growing as a houseplant. How do I care for it? Does it need a bigger pot?
5
votes
3answers
206 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):
3
votes
1answer
55 views

How close to a mature douglas fir can I place a septic tank and leach field?

I have two mature douglas fir trees (40') on my lot. How close to them can a septic tank or leach field be placed safely to avoid root invasion?
5
votes
1answer
54 views

How should I prune a common fig for best productivity?

Figs have a unique fruiting cycle, fruiting on old wood first, all at once, then on new wood for the rest of the season. What's the best pruning system for these, to maximize production? Is it best ...