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Mikawa yatsubusa: Your growth rate?

UBC Maple Forum - 6 hours 15 min ago
Hello Everyone,
We have a Mikawa yatsubusa that was planted two years ago, that is doing VERY well. No complaints. When we got it, it was a 3 yr old graft container grown plant that was pretty small that I planted in the ground in the Spring of 2008. Here's the question. How much do yours grow per season? Our dwarf Mikawa yatsubusa is growing anything but slowly. Basically once is starts in late March/Early April it does not stop until mid-September. It gets about 1/2 day sun (afternoon),...

Mikawa yatsubusa: Your growth rate?

Is this still frost damage?

UBC Maple Forum - Wed, 28/07/2021 - 21:09
Hi guys,

Is this still the frost damage we've been talking about in this topic?

Will my Sode Nishiki survive this?

Seems to me some kind of fungus? Or dieback or something like that? Leaves are OK though... well... they are hanging on :)

Coral Bark Leaf Verigation and Deformation

UBC Maple Forum - Wed, 28/07/2021 - 15:13
Having read all the posts and looked at all the pictures concerning the "Sango Kaku" I have a question. Does anyone have leaves that look similar to these that I have posted. During this plants first year, the leaves were smaller and a uniform light green yellow throughout the summer. I transplanted the maple this spring, removing as much osmocote as possible and ending up with a nice mulch/sand mix, that was followed by a fish emulsion fertilizer.

The new growth began with red...

Coral Bark Leaf Verigation and Deformation

Protection of black pots

UBC Maple Forum - Sat, 24/07/2021 - 03:30
Hi all,

I bought about 30 acers this year, so my wife is mad at me.
I put them in black standard rubber/plastic pots, because buying expensive ceramic pots would probably have lead to divorce.

Now I'm wondering: if the sun is on these pots... can it hurt the roots/the plants?
And if so, what is a a cheap/good way to protect them (other then putting them in the shade)?


Japanese Maple Tree

UBC Maple Forum - Tue, 20/07/2021 - 23:19
We have a beautiful Japanese Maple tree in our front lawn. This season the leaves are brown and yellow. I can see some green/ white patches on the shoots/ trunk of the tree.. I am enclosing the pictures. I would really appreciate if you can guide us what needs to be done so that we can protect this tree.


Propagation of Japanese Maples

UBC Maple Forum - Tue, 20/07/2021 - 14:10
I am new at graftig JM. This my first attempt. I started in late February with Acer rootstock. Took care to sterilize equipment, made veneer side cut and made great effort to match cambium layers of scion with acer. I only used grafting tape. It appeared I had one of ten to take. However later in March /April the leaves from that scion fell off and scion appears to be dead. I then tried Summer grafting usinf the veneer method and the summer graft technique I will call "bark graft"...

Propagation of Japanese Maples

Air root pruning pots

UBC Maple Forum - Tue, 20/07/2021 - 13:48
Hi all,

Does anyone have experience with air root pruning pots? Are they better to grow maples in or does it make little to no difference than regular pots?

Thanks in advance!


Is this normal JM growth?

UBC Maple Forum - Tue, 20/07/2021 - 00:40
I traded for 3 JMs, one red and two green. I'm not sure of their variety. The two greens have been putting on a lot of growth, but it doesn't quite look right. Initially, the leaves were just white with contrast on the veins but otherwise normally shaped. My redbuds did this as well, and they're growing in the same experimental media which I assumed was just lacking nutrients so I added a slow release pellet fertilizer.
This fertilizer fixed my redbuds and the leaves came in nice and green...

Is this normal JM growth?

Moonrise or Autumn Moon?

UBC Maple Forum - Mon, 19/07/2021 - 19:53
Hi all, can I have a few expert opinions please? I have 2 Acers both labelled as Moonrise. They are so different in colouration…though kept in similar lighting. This is leading me to think one of them may actually be Autumn Moon. One has always been very bright orange turning very red in parts in sun. The other has always been very green with bright red only on new growth. I have read so many different descriptions of both that often contradict. I thought I’d tap into the expertise of the...

Moonrise or Autumn Moon?

Need help identifying tree (maple?)

UBC Maple Forum - Mon, 19/07/2021 - 09:33
I’ve attached some pictures. Don’t know what else to say about this tree.

How to save a crisp deshojo?

UBC Maple Forum - Sun, 18/07/2021 - 20:52

This week has been really hot in the UK, and my small deshojo (in pot, not in full sun) has now most of its leaves very dry (from bottom to top)

I suspect it was not moist enough, so I've now watered it and not put it in full shade to see if it can recover.

Is there a chance for it to recover? What do you think I should do to give it the most chances to survive?

Thank you

Japanese Bloodgood

UBC Maple Forum - Sun, 18/07/2021 - 20:33
My Japanese Bloodgood is losing all of its seed I'm in zone 5B Newfoundland Canada it seems like every year they drop around this time July wondering if those seeds would be viable or what my problem is

Bought an “unknown”, please help!

UBC Maple Forum - Sun, 18/07/2021 - 17:34
Hi everyone, thank you for all the helpful discussions and photos as I have started to plant Japanese maples here in Ohio. I bought a tree labeled as Unknown, and was hoping someone could identify it. Photos are attached (plus one with my dog who laid down in front while I was taking pictures!). The tree is bushy and has a gold sheen to it that isn’t captured in the photos so well, similar but maybe with a bit more green than Ogon Sarasa and Iijima Sunago. Thank you for looking!


UBC Maple Forum - Sun, 18/07/2021 - 17:08
I’ve had the first tree for about 3/4 years and it’s doubled in’s been in a full sun location which hasn’t been ideal in July and August. I’ve just moved it under the canopy of an Ash tree now that the weather has got hot..I think it will be happy there..

The other tree I’ve had 2 years and that one is about 80cm.

Sango Kaku coral bark

UBC Maple Forum - Wed, 14/07/2021 - 16:10
My Sango kaku coral bark Japanese maple has some leaves that are yellowing and some even drying up. It is in a small nursery pot but does get frequent watering. What could be causing the leaves to fall off and change colour at this time?

Mulch disks?

UBC Maple Forum - Wed, 14/07/2021 - 10:36
So I’ve seen these coconut mulch disks for winterizing and others that are rubber for weed protection and so forth. I saw them on mr.maple but not sure which they used and for what purpose.

anyone have experience with them? What are our thoughts?


Ukigomo ‘Floating Clouds’ disease or —?

UBC Maple Forum - Wed, 14/07/2021 - 07:11
I planted this beautiful maple spring 2020 in a spot formerly occupied by a forsythia. It get’s full morning sun but after about 1pm is shaded by a large fir. It started beautifully in spring with very white leaves and then … stasis. The leaves didn’t grow much bigger, and upon close inspection they look deformed—some of them have a bubbled texture, and since spring despite a very few new leaves it has slowly gotten slightly sadder looking. I try to keep it watered but not over watered (I...

Ukigomo ‘Floating Clouds’ disease or —?

hubbs red willow maple

UBC Maple Forum - Mon, 12/07/2021 - 03:26
The ends of the leaves on my hubbs red willow maple are brown and curling. It did this last year and still seems to be ok but it worries me. It seems to be getting enough water and gets a decent amount of shade. I have read that japanese maples will get brown on the leaves if they get wet and then the sun is on them which could account for some of it but not the entire tree.
Has anyone else experienced this?

Is my Sango Kaku stressed?

UBC Maple Forum - Sat, 10/07/2021 - 18:49

This year my Sango Kaku behaves a bit strangely.
It opened in Spring with yellow leaves as expected, but it seems to have skipped most of the 'green' stage.

As you can see in the pictures below, all the top and side leaves have turned more orange/red. And there are some marks like a tan i.e. parts of leaves not exposed to sun (or shaded via a leaf above) are greenish.

Spring in the UK was a bit late and a bit weird (frost, lots of sun, then lots of rain in particular)

Do I need to...

Is my Sango Kaku stressed?

Summer gold leaves brown spots

UBC Maple Forum - Sat, 10/07/2021 - 16:59
I seem to be getting a lot of brown spots on the leaves of my summer gold. Anyone any idea what could be causing this. Could it be too much water as we have had a lot of rain ?


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