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Maple Forums on the UBC web-site

First ones to leaf out

UBC Maple Forum - Mon, 13/03/2017 - 21:58
And the winner is...

Acer tegmentosum:

View attachment 146850

Acer buergerianum is well on its way too, and among Acer palmatum, 'Little Princess' ('Mapi-no-Machi-Hime') is on the lead.

PS: We've had a few days of rather warm weather here after some strong winds ans pouring rain : it was 8°C-18°C on Saturday, and only slightly lower on Sunday and today. I heard about the snow in Eastern USA: crazy weather...

No stem or branch growth every year

UBC Maple Forum - Wed, 08/03/2017 - 02:14
Hello, I am wondering if someone can help me figure out why many of my maples (in containers) do not seem to be growing. Every year, the plants will put out leafage, some years better than others, but there is hardly any growth, or branching at all. I've attached a picture which demonstrates this. You can see some good stem and branch growth from years prior, but then in the past 3 or 4 years, not much has happened. What I end up with is very short, stubby shoots from each year's...

No stem or branch growth every year

Japanese maple

UBC Maple Forum - Mon, 06/03/2017 - 18:16
I am collecting Japanese maple .Does anyone know where I can find a nursery(local anywhere in lower mainland) to buy rare Japanese maple

East Coast

UBC Maple Forum - Tue, 21/02/2017 - 18:46
Thinking about our East Coast members and hoping they are OK after this horrific storm. Sound off when you can and let us know how you are! In our thoughts and prayers...

Request made

UBC Maple Forum - Sat, 11/02/2017 - 12:00
I am a new member of the maple society, please add me. Thanks

Likelihood of hybridization

UBC Maple Forum - Fri, 03/02/2017 - 00:40
Hi everyone, hope all are well.

I am very interested in learning about Acer genetics and which species can hybridize with each other. I know very little at this point, but there is some great threads on here with discussions pertaining to this subject, as many of you seem to have great knowledge on the matter. So I have a question: What are the chances that one of the Macrantha section maples would hybridize with the native Acer pensylvanicum, which are very prevalent in my neck of the...

Likelihood of hybridization

2017 Maple Symposium Itinerary

UBC Maple Forum - Mon, 30/01/2017 - 11:41
The itinerary for the 2017 Maple Symposium and post-symposium tour has been posted on the Maple Society web site:

International Maple Symposium 2017 in Roscoff, Brittany, France - 25/26 October | The Maple Society

Hope we will see many forum members here in October!


Acer rubrum 'Brandywine'

UBC Maple Forum - Sun, 29/01/2017 - 05:28
I'm searching for an Acer rubrum 'Brandywine' available in a small size such as a 1 gallon or a liner. I've only found wholesale only sellers and large expensive trees at far away retailers. I'm located in Atlanta Georgia USA. I'd be willing to purchase it as some scion wood, during March, as well if it were available. Also interested in Acer rubrum 'Somerset'. Thank you.

Seedling question - Is this an acer palmatum?

UBC Maple Forum - Thu, 26/01/2017 - 09:15
Hi all,
I have this 2 year old seedling, it was from a pack of seeds i bought on ebay named as Acer Palmatum.

However this seedling is notably different to almost every other acer palmatum seedling i have grown.

See for yourself. The one in question is on the right.

I am unsure it is acer palmatum! Perhaps some other acer variety? On the left, is a normal acer palmatum seedling to see the contrast. My different one seems so smooth on the edges and colour is a very dark rich green. Though...

Seedling question - Is this an acer palmatum?

When to transplant

UBC Maple Forum - Thu, 26/01/2017 - 04:55
Greetings from Appalachia, where it's basically been spring for the past two weeks, but will return to winter tomorrow (that's okay with me, I'm a snow lover).

I have a small, less than a meter tall, A.p. 'Shirazz', (I know there's been lots of controversy on the name, but that's what it was labeled as), that is in an area where a lot of water flows when it rains very hard. So much water, that a small area of the roots are totally submerged for a brief time, as the soil is quick to drain...

When to transplant

Fertilité of samares according to the varieties

UBC Maple Forum - Wed, 25/01/2017 - 12:23

Do you know if the seeds of the following varieties are fertile?
- ornatum
- katsura
- shirasawanum jordan

Thank you for sharing your experiment.

Trying to find info on Acer Palmatum Hamana Nishiki

UBC Maple Forum - Mon, 23/01/2017 - 00:12
I have the tag from the tree, but I cannot find anything online under this name. Is someone able to give me a push in the right direction? I've tried to attach a photo of the label but having difficulties. It says it is one of the Yatsubusa dwarfs....


Maple Resources

UBC Maple Forum - Sun, 15/01/2017 - 20:58
Hi all,

Some of you will remember that in the old forums, we had a section for links to maple-related web sites. I've moved some of these over as a "Resource" under these new forums.

General Maple resources are available here:
Maple Web Resources | UBC Botanical Garden Forums

Maple nursery listings are available here:
Note from @wcutler: I had to edit this, as the file hit the...

Maple Resources

Mr Hayashida's page?

UBC Maple Forum - Sun, 15/01/2017 - 05:17
Does anyone have a new link to Mr. Hayashida's maple page? It was at

But seems to have disappeared.



Japanese Maple Bark

UBC Maple Forum - Sat, 14/01/2017 - 23:19
i just trimmed a bottom branch on my weeping Japanese Maple. In doing so, I accidentally nicked the bark (approx 8mm x 3mm) on the trunk above the cut. I realize that Japanese maples are sensitive. Is there something I should put on the exposed part of the trunk?

good time to prune my Japanese maple?

UBC Maple Forum - Wed, 11/01/2017 - 21:34
I live in nothern California in the San Francisco/Oakland bay area and was wondering if this was a good time to prune my Japanese maples. I keep getting conflicting information, so i thoought I'd ask you folks who have given me great info in the past. Thanks.

Trimming Japanese Maples

UBC Maple Forum - Wed, 11/01/2017 - 21:30
What is the best time of the year for trimming Japanese Maples in the Vancouver area?

A leggy Acer palmatum 'Olsen's Frosted Strawberry

UBC Maple Forum - Wed, 11/01/2017 - 21:22
A friend recently gave me an Acer palmatum 'Olsen's Frosted Strawberry' that she'd picked up at a nursery. It's very leggy and I would like advice about pruning it to achieve a nicer shape. Or would it be better just to stake it? The first picture shows its natural state. In the second picture, I'm holding up the two long branches.

Almost all of the photos of this cultivar show only the foliage, so I don't have a clear idea of what the tree's shape should be. Could any of you post a photo...

A leggy Acer palmatum 'Olsen's Frosted Strawberry

Container fertilisation

UBC Maple Forum - Tue, 10/01/2017 - 21:11
With Spring coming up, the daffs and irises are already out, can I ask what others use for slow release fertilisation of container grown Acers.
This is more aimed at members from the UK and Europe as there have been discussions before but the products often recomended are not available to us over here (as far as I know).
I am guessing that most use one of the Osmocote slow release fertilisers, but which I and in which form, or does anyone use Fish blood and bone?


The BIG DREAM thread.

UBC Maple Forum - Mon, 09/01/2017 - 02:05
Ok so I have been thinking about this for a while. I have been collecting Japanese Maples for a couple of years now and have made the decision to turn my landscape into a Japanese Garden with an emphasis on maple cultivars. I say Big Dream because I see how much work, time, and money will be involved in my endeavour and I know some of you have already completed some or all of this process. I would like to know about your Japanese Maple garden. Your ambitions that have already come true...

The BIG DREAM thread.


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