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Maple Forums on the UBC web-site

Does any Japanese Maple meet these requirements?

UBC Maple Forum - Thu, 19/10/2017 - 05:40
We have a very small back yard but I think we are set on getting one focal point tree. I wonder if any meet these requirements...

- 10-12' would be perfect, not to exceed 15'
- upright
- not super dense leaves
- Fall color overall orange. Can have reds, pinks and yellows but overall more orange
- Summer color celery (lighter) green or red/purple
- Not XL leaves - I think would look odd with such a small yard
- would prefer light grey whitish bark but dark bark ok too. Don't like green or...

Does any Japanese Maple meet these requirements?

Splitting bark in Maples, once thought to freeze damage, now linked to Herbicide Glyphosate

UBC Maple Forum - Thu, 19/10/2017 - 02:51
Be careful using products containing the herbicide Glyphosate like Roundup, around Woody trees and shrubs, because it is linked to splitting bark in many varieties of Acer including Acer palmatum. It was thought that splitting bark was due to freeze thaw, until it started showing up in warm climates like Georgia and Florida. Now the herbicide Glyphosate is linked to weakening the bark making it more prone to splitting. Homeowners and growers alike should take notice.

Some of the most...

Splitting bark in Maples, once thought to freeze damage, now linked to Herbicide Glyphosate

Make your own container mix- A must read

UBC Maple Forum - Sun, 15/10/2017 - 10:50
If you make your own container mix this is a must read, in my opinion. Those who buy and store your components in bulk, you will want to read the first section (actually if you are a consumer of bulk components, it's good knowledge to know some warning signs of toxic medium)

For everyone else who buys bagged components for your soil mix, you may want to start reading the second section "Mixing Up Potting Mixes", but note the following important mention from the first section:
"Also,...

Make your own container mix- A must read

Maple Society Web Site Problem

UBC Maple Forum - Mon, 09/10/2017 - 16:55
Hi, jus a quick word, in case anyone is trying to sign up for seed distribution or the Symposium and tour:

As of 9 Oct Evening GMT there is a problem with the site, the address links aren't working right.

I'll post again when the site is back up, should be shortly.

-E

The best fertilizer for Japanese maples

UBC Maple Forum - Sun, 08/10/2017 - 19:40
A wise man (Mr Shep aka Jim) once told me that we tend to over fertilize our maples when they are young and then don't give them enough as they get older.

This started my in-depth research into finding the best fertilizer for Japanese maples.

For me, a great fertilizer must provide healthy roots and a dense healthy canopy. The growth must be true to form (proper leaf color, size, and a short length between leaf pairs). It should promote healthy growth all along the branch and not just at...

The best fertilizer for Japanese maples

Conjunction junction amazed by the function

UBC Maple Forum - Fri, 29/09/2017 - 17:42
Went to visit my friend Elpiedio to take in the beauty of his old container grown maples as they drop their leaves and reveal the majestic branch structure. I was amazed to see how this tree has grown together, quite old and still functioning quite well. Removing the conjunction junction is not an option as you would lose the entire canopy.

Fall colours 2017

UBC Maple Forum - Sun, 24/09/2017 - 20:11
Fall comes earlier this year in the UK
First pic today all the others from last weekend 16/09/17

Jpn maple Autumn leaf brown-out

UBC Maple Forum - Sun, 24/09/2017 - 04:38
Hi!
Every fall without fail my Jpn maples start to color, and then the edges go crispy and brown.
Spring and summer leaf outs go well.
I live in western, ma.
Thoughts?
Thanks! Debviolet

Acer shirasawanum - PLEASE HELP!!

UBC Maple Forum - Mon, 18/09/2017 - 04:26
Quick Backgrounder:
I bought this tree in 2008. In 2017, it isn't taller than 3 feet.
It was in a container for the longest time and experienced some stress related to low light conditions and occasionally not being watered enough. It's leaves would develop a bit of a spotted curled up brown condition in early fall. For several years I wondered if it had verticillium wilt but think it's okay; the low water, in a container conditions might have accounted for the curled up leaves. Then I...

Acer shirasawanum - PLEASE HELP!!

Home Depot mystery tree

UBC Maple Forum - Sat, 09/09/2017 - 18:31
So I went to the Depot yesterday to pick up some potting soil. I happened to notice some new additions to their JM stock. There were about six or seven trees all about 5 feet high, green,healthy and all marked with same information. It was definitely different than anything I have now and for $35 I couldn't pass one up.

The hang tag identifies them as Acer Palmatum with a picture of a red dissectum. The receipt says it's an Acer Dissectum Green. The back of the hang tag has a Plant Code...

Home Depot mystery tree

Japanese maples for containers

UBC Maple Forum - Sat, 09/09/2017 - 06:03
Hello - I'm new to the UBC Botanical forum, but have enjoyed a number of visits to the UBC gardens over the years (I live near Victoria). I have a small balcony, in full sun, and would dearly love to grow a green-leafed Japanese maple in a container, so need one that is dwarf and not prone to sun scorch. I tried a lovely Viridis this year, but it definitely scorched altho' it was marked as sun tolerant. Any recommendations? Many thanks, Jill

Kurui Jishi Growth Rate

UBC Maple Forum - Thu, 07/09/2017 - 16:32
I moved much of my garden last year and had many plants and trees that were simply too large to transplant. One of them was Okushimo, which had become a pretty decent sized tree.

I wanted to replace it at the new garden with a similar cultivar and chose Kurui Jishi on the basis of similar leaf form and the fact that it was reputed to be a dwarf form. It has grown almost a meter in a year! Does that sound like a mislabelled tree or just transplant vigour in new (to the plant) soil?

FWIW I...

Kurui Jishi Growth Rate

Several leaves are wilted on my Acer pseudoplatanus 'Esk Sunset'

UBC Maple Forum - Tue, 05/09/2017 - 10:24
Hey guys, My Eskimo Sunset Japanese Maple has been in the ground for 3 years and has been doing well. The tree gets full sun from the morning until about 1:30 in the afternoon and then it gets dappled light. This spring I recently noticed that several leaves have wilted. I can't recall if the tree has done this in the past. Does the tree look okay or is there a problem? I also notice some white coloration on the tree trunk. Is that anything?

Thanks.

Unsure on my Acer!

UBC Maple Forum - Mon, 04/09/2017 - 19:23
Hi all,
Myself and my partner are not 'garden people' but we fell in love with vibrant red acers! So we decided to hunt one down for the front garden. We found our favourite one slumped and in need of some TLC in the corner of a local garden centre last summer and went ahead with planting it.

We planted it in a very large terracotta pot with a mix of top soil a multi purpose soil and added root powder. We also topped the soil with stones to prevent insects and bugs from getting into it!...

Unsure on my Acer!

2017 Maple Symposium Signup

UBC Maple Forum - Mon, 04/09/2017 - 17:25
Hi,

Sign up for the 2017 Maple Society Symposium and Tour has been slower than expected, with only a few participants from mainland Europe so far. This edition of the triennial symposium is in Roscoff, Brittany, France.

If you are planning to sign up, we would appreciate your doing so rapidly, so that we can accurately calculate financial exposure.

Let me remind you that you don't need to be a Maple Society member to attend.

It's a great looking program and tour, detailed information is...

2017 Maple Symposium Signup

Damaged Acer Palmatum Mikawa Yatsubusa

UBC Maple Forum - Fri, 01/09/2017 - 18:12
Dear Forum,

the potted Acer Palmatum Mikawa Yatsubusa I had issues with twice (see below) has become quite worse; several twigs and one larger branch saw all leaves shriveling up. The shrivel-zones are at the "back" of the tree (facing a terrace window). The other two trees, potted after purchase in April 2016 with the exact same soil from the exact same batch are doing ok by comparison (more wind, more sun, inner city terrace situation).

First issue from...

Damaged Acer Palmatum Mikawa Yatsubusa

Japanese Maple -Semi No Hane - What's wrong with it

UBC Maple Forum - Thu, 31/08/2017 - 22:24
I planted a Semi No Hane Japanese maple earlier this April from a Japanese Maple Nursery.
Facts about the tree:
*In San Francisco
*Sun from 9:30am-4:30pm.
*Some wind, but nothing strong, since its next to a fence and blocked by house.
*I water it once or twice a week depending on my moisture meter

However my maple has been slowly loosing it's leaves and looks so sad. I called the nursery and showed them pics and they said I'm not giving it enough water because the leaves are falling off...

Japanese Maple -Semi No Hane - What's wrong with it

Need advice: Fireglow J. Maple dropping leaves

UBC Maple Forum - Sun, 27/08/2017 - 18:45
I have a Fireglow Japanese maple that I purchase at a local landscape supply and planted back in late June. Since transplanting it has slowly shed leaves. The leaves that remain appear healthy. Any insight on what's going on? I'm assuming it will be ok and is just some relocation shock, but just want to make sure. Here are some pics.

Maple ID

UBC Maple Forum - Fri, 25/08/2017 - 16:09
Hi,

I'm just back from a school trip to Britain, and while leaving Hampton Court, I spotted this maple just outside the main entrance. I had thought of Acer platanoides 'Princeton Gold' (Emery has just posted a photo in another thread) but the leaves seem less cut out than the photos I've seen on Google.

The photo itself is not so good, I couldn't climb up the tree and the weather was soooo sunny (I love the English weather when it's like that) that it's a kind of backlight picture.

But...

Maple ID

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