Arisaema 2010

16 posts / 0 new
Last post
Bowden
Title: Member
Joined: 2010-04-08

My Arisaema heterophyllum is large as well, 4-5' tall.  It seeds around quite a bit, here is a photo of seedlings growing amidst a clump of Deinanthe bifida.  I'll have to dig them out and find them a better spot. I'll post a photo when the mature plants are up.
My Arisaema amurense is the green flowered form.  I've never noticed seed heads, but maybe the young plants come from bulb offsets. This year the leaves look a little odd -all crinkled.
My clump of Arisaema ringens is becoming quite impressive, I've had it about 12 years.  I think it's at its most dramatic before the leaves have completely unfurled, but I didn't get the camera out in time.

Mark McD
Title: Moderator
Joined: 2009-12-14

Paul wrote:

My Arisaema heterophyllum is large as well, 4-5' tall.  It seeds around quite a bit, here is a photo of seedlings growing amidst a clump of Deinanthe bifida.  I'll have to dig them out and find them a better spot. I'll post a photo when the mature plants are up.
My Arisaema amurense is the green flowered form.  I've never noticed seed heads, but maybe the young plants come from bulb offsets. This year the leaves look a little odd -all crinkled.
My clump of Arisaema ringens is becoming quite impressive, I've had it about 12 years.  I think it's at its most dramatic before the leaves have completely unfurled, but I didn't get the camera out in time.

Paul, that's one mighty impressive clump of A. ringens!!! :o  How old is that clump?  One of my favorite species.  I had the all green and white flowered form for many years, but it NEVER increased, then it perished suddenly one year, in an area of the garden I struggle with voles/moles tunneling.  A couple years ago I received the stunning black-rimmed form, which is the one to get.  Just checked and it has sprouted, poking it's nose through the soil.

I grow a several forms of A. amurense, a couple forms are in flower now.  Every year, they make very showy red-orange seed heads, some older photos uploaded here.  Regarding some of your plants having leaves looking odd and crinkled, that is worrisome, I wonder if your plants are getting the rust that can afflict Arisaema.  This year, a number of my Arisaema are heavily infected, on an amurense form, and on sikokianum. :(

Interesting that you're getting A. heterophyllum youngsters but haven't noticed any seed heads (hard to miss, usually bright orange-red), so maybe as you say, they are offsets?  It's good that your getting young ones, I worried that I would eventually lose mine, because it refused to set viable seed for nearly 10 years then suddenly condescended to make seed last year, which are coming up now.

Mark McDonough
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at aol.com
 

RickR
Title: Moderator
Joined: 2009-09-21

And the Smilacina berries are quite hefty too.  Our wild Smilacina racemosa  produces berries readily, but the large spray you have pictured doesn't happen here.  Oh, the Ariseama are nice too.  Heehee. ;D

Rick Rodich    zone 4a.    Annual precipitation ~24 inches
near Minneapolis, Minnesota, USA

Bowden
Title: Member
Joined: 2010-04-08

Mark,  The A. ringens clump is about 10 years old.  I'm don't know what makes it so happy.  An A. sikokianum right next to it only lasted about 3 years.
My A. heterophyllum does make seed heads.  I donate them sometimes, other times I've let them fall to the ground, hence the seedlings.
I think I would have noticed the Arisaema amurense seedheads, but maybe I missed them.  I looked at the undersides of the crinkled leaves and don't see any of the orange spots that I read on the internet indicate rust.  Do the spots appear later on?  I'm wondering if the leaf could be damaged by aphids.  Sometimes when I accidentally dig up an Arisaema corm (is it a corm or a tuber?) planting or moving a plant nearby, I find the corm covered with grey aphids.  Now that we have the forum I can post a picture if I find this again.

Hoy
Hoy's picture
Title: Member
Joined: 2009-12-15

At last my first Arisaema this year chose to flower weeks later than normal. Species is unknown but it is from China I presume!

Trond
Rogaland, Norway - with cool, often rainy summers  (29C max) and mild, often rainy winters (180 cm/year)!

Pages

Log in or register to post comments