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

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9
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4answers
4k 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 ...
6
votes
1answer
55 views

Why is my flowering crab stunted?

I have two flowering crab apples planted 2 yrs ago beside each other (20 ft apart). When they went in they were identical. However for two years the one has flourished and the other is anemic, such ...
12
votes
2answers
711 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 ...
18
votes
4answers
495 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 ...
9
votes
1answer
500 views

Damaged Tree Heather: can it survive?

I have a tree heather (Erica arborea) in my rockery (acid soil) which I grew from a seedling about twenty years ago. Until it was severely damaged by a prolonged freeze-up last winter, it was about ...
10
votes
3answers
488 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 ...
10
votes
3answers
816 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 ...
10
votes
2answers
629 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 ...
8
votes
1answer
279 views

Should the aerial roots be trimmed on my ficus tree?

I have a couple 3 foot tall ficus trees which have some thin aerial roots descending from the branches. I keep both indoors, and they do not get a lot of sunlight. However, when I purchased them 2 ...
10
votes
3answers
1k 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 ...
8
votes
3answers
6k 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 ...
9
votes
2answers
1k 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 ...
6
votes
1answer
1k views

How I can persuade an olive tree to flower?

I have an olive tree that was a mail order gift about four years ago. Unusually for mail-order florist "living plant" deliveries, this one has survived more than a few months! It came with two olives ...
16
votes
2answers
955 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 ...
10
votes
1answer
1k views

Moving lemon and satsuma trees?

I have a lemon and a satsuma tree in my yard that I planted roughly 2 years ago. So they are still fairly young. I planted them in a bad location and realized that in a few years they are going to end ...
10
votes
1answer
235 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 ...
12
votes
2answers
937 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 ...
11
votes
2answers
1k 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" ...
12
votes
1answer
1k 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 ...
12
votes
1answer
450 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?
11
votes
1answer
773 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?
19
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 ...
20
votes
2answers
816 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 ...
2
votes
3answers
427 views

How to protect against my neighbour's trees

My neighbor has planted a row of pine trees along our boundary. The trees (perhaps 10 of them) will grow to 14m tall, yet are barely 4m from my house (and 2.5m from his). The ground is heavy with ...
11
votes
2answers
114 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 ...