Plant ID forum: Tree Lupin (Lupinus arboreus)

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Name: Lynn
Dallas, OR (Zone 8b)
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valleylynn
Nov 2, 2011 8:24 PM CST
Can anyone tell me what this is? It looks like it is starting to grow a wooding trunk. I know what I hope it is.


Name: Suzanne/Sue
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Calif_Sue
Nov 2, 2011 10:18 PM CST

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Lupine?
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Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Nov 2, 2011 11:21 PM CST
You might be right Sue, but it is growing in such an odd form, like a small seedling tree with a woody stalk. It came up this summer. I've never had a lupine grow like this.
Name: Myriam
Ghent, Belgium (Zone 8a)
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bonitin
Nov 3, 2011 12:51 AM CST
Sorry I'm of no help, but the leaves are very pretty! Interesting plant, I would also like to know what it is! Smiling
Name: Lin
Florida (Zone 9b)
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plantladylin
Nov 3, 2011 6:04 AM CST
Lupinus arboreus (Bush Lupine) seems to have woody stems: http://www.botany.hawaii.edu/faculty/carr/ofp/lup_arbo.htm

Scroll down this page for a good photo of foliage: http://wildflowerfinder.org.uk/Flowers/L/Lupin(Tree)/Lupin(T...
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Name: Janet Super Sleuth
Near Lincoln UK
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JRsbugs
Nov 3, 2011 6:47 AM CST
There is a blue form of Lupin arboreus, the Tree Lupin, I have had a self set in my garden but last winter about killed it off although I found a small root survived it hasn't grown. I have however got a self set in the front garden growing which apparently suits it better, it's currently about 6 feet tall! No flowers on it yet though, it started to grow last year and has really taken off this year with a vertical stem and side shoots coming off at about 45 degrees. I just took some photos so will download them and post them later. The young stems are purplish like yours Lynn, the leaves look the same maybe not quite as blue but colour can vary in different conditions.

I had a photo of the fowers once but must have lost it in my 2008 computer crash. Rolling my eyes.

http://www.robertsplants.co.uk/lupinus-arboreus-blue-tree-lu...

There's a white form too!

http://www.plant-world-seeds.com/store/view_seed_item/1653?i...
[Last edited by JRsbugs - Nov 3, 2011 6:50 AM (+)]
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Name: Janet Super Sleuth
Near Lincoln UK
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JRsbugs
Nov 3, 2011 4:55 PM CST
Here's mine Lynn, although I haven't seen this one flower it's likely to be from the blue flowered one. It's very similar to yours, but you would be best waiting to see the flowers to be sure which it is. Last year it looked a little different with a stem which laid over sideways, this year a strong stem has shot up vertically from near the bottom.

Thumb of 2011-11-03/JRsbugs/6a47df Thumb of 2011-11-03/JRsbugs/39f527 Thumb of 2011-11-03/JRsbugs/96ece8
Name: Lynn
Dallas, OR (Zone 8b)
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valleylynn
Nov 3, 2011 6:24 PM CST
Hurray! You guys are awesome. That is it. A bird must have brought it in. Sure was a big surprise when I noticed this tiny little seedling starting up in one of my raised beds that has peonies and Blackberry lilies. I have never seen one of these around here though. Can't wait until next summer when it will hopefully bloom.
Mine is also growing off to one side, good to know it might start sending growth straight up. It is already branching. Lovey dubby
Name: Janet Super Sleuth
Near Lincoln UK
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JRsbugs
Nov 4, 2011 7:12 AM CST
Same here Lynn, I hadn't seen any around me either but there's two big garden centres not too far away so maybe someone has one in their garden and mine got brought by a bird. It is exciting to see an interesting plant growing unannounced in your garden I agree!
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Nov 4, 2011 9:30 AM CST
I am very excited about it. I will have to learn more about it. Thumbs up
Janet how long do your live? Are yours winter hardy?
Name: Janet Super Sleuth
Near Lincoln UK
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JRsbugs
Nov 4, 2011 10:50 AM CST
Mine had been growing for a few years Lynn but it wasn't in the best of places, I found the top more tender parts of the foliage died back over winter with it shooting out on the woody stem as far as it got, but the original plant never grew as tall as this one. As mine is in it's second year now and still not flowered I would expect flowers next year so yours might not flower next year. By the looks of the woody stem at the bottom of yours it might have been there last year unnoticed. Your seasons might be longer too so it might flower more quickly.

Mine did withstand the previous to last hard winter which was bad but not as bad as last winter, we had 7 weeks with temperatures below freezing even in the day and down to -17C (about 1F) at night and not much above freezing in the day for some time after. I looked today, there is a bit of a woody stem with a couple of leaves on which looks different to the original plant but the woody stem is broken now at the base, it's in very sandy soil which might help but other Lupins are often not long lived so it's a good idea to grow some more from seed just in case and I guess that one was at it's life end. I'm surprised I didn't have more self sets but I had other ordinary looking Lupins setting around nearby and that plant wasn't too close to my ordinary Lupins so I'm a bit befuddled by that, almost as if the ordinary ones crossed with the tree Lupin if that's possible. I know bees would carry pollen from one to the next assuming two were in flower at the same time but the self sets were close to the tree lupin. I'm really pleased I have one growing again! They might take a few years to germinate or the correct set of temperatures, whichever I'm very pleased, we often don't value a plant so much until we are close to losing it.

I read somwhere that the tree Lupin is hardy to 20F which I think might be right in some soils but in sandy soils plants can often survive to lower temperatures. The yellow one is native to western US in California, wiki says -12C (10F) with them living for up to 7 years.

http://en.wikipedia.org/wiki/Lupinus_arboreus

They are in Oregon too.. and naturalised in southern England, I'm not far off southern!

http://www.pfaf.org/user/plant.aspx?latinname=Lupinus+arbore...

Aha, I have at least one that looks like the flower on this ID site here, they do cross! I gave one of the self set plants to my neighbour and his is like that too!

http://www.ispot.org.uk/node/37648

I must have been lucky to get one which was the original Lupinus arboreus. Now the question arises Lynn, do you have a Lupin which could be a cross with L. arboreus and had thrown back one like the species?
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
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valleylynn
Nov 4, 2011 12:11 PM CST
Funny you should ask. This is growing in that same raised bed. Not sure where this plant came from either, as I didn't plant it. It appeared to be a Russel's type Lupine.
Thumb of 2011-11-04/valleylynn/94b383
Name: Janet Super Sleuth
Near Lincoln UK
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JRsbugs
Nov 4, 2011 12:48 PM CST
I have one just like that too Lynn, a Russel's hybrid! It's a long lived plant, I've had it for over 10 years and it just keeps going, also made a couple of self sets around it which look much the same. I also grew some from seed years ago called 'Lulu' which is a dwarf in red and pink shades, some are nicely scented. Some of those disappeared but have set other plants so I still keep a few going. My Megachile willughbiella bees and some bumblebees love them but the Megachile males are not happy with other bees feeding on them! Hilarious!

Now I'm wondering if the tree lupin is a throw back from the Russel Hybrid!
Name: Janet Super Sleuth
Near Lincoln UK
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JRsbugs
Nov 4, 2011 12:54 PM CST
I found where the Russell hybrids came from, Lupinus polyphyllus crossed with others .. mine is in a semi-shaded spot so probably keeps moist which it likes, but this year we had little rain.

http://en.wikipedia.org/wiki/Lupinus_polyphyllus

Surprise surprise!

He spent two decades single-mindedly trying to breed the perfect lupin, crossing L. polyphyllus with L. arboreus and one or more annual species (maybe L. nootkatensis).




Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Nov 4, 2011 1:25 PM CST
Very interesting. I will now have to observe and document with photos just what this seedling does. Great sleuthing Janet. Thumbs up
Name: Charleen
Barnesville, Ga. Zone 7b-8 (Zone 8a)
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Ridesredmule
Nov 4, 2011 1:56 PM CST
Wow!! Wish I had them birds flying here!!! Rolling on the floor laughing Rolling on the floor laughing Rolling on the floor laughing Rolling on the floor laughing Beautiful Girls...
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Nov 4, 2011 3:00 PM CST
May when it blooms and sets seed Charleen, I can send you some seeds. Thumbs up
Name: Charleen
Barnesville, Ga. Zone 7b-8 (Zone 8a)
Walk in Peace / I'm Charley's Mom.
Miniature Gardening Mules Tip Photographer I sent a postcard to Randy! I was one of the first 300 contributors to the plant database! Plant Lover: Loves 'em all!
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Ridesredmule
Nov 4, 2011 4:29 PM CST
O.K. That would be great!! Group hug Group hug Lovey dubby
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Nov 4, 2011 5:48 PM CST
You'll have to remind me. Thumbs up
Name: Charleen
Barnesville, Ga. Zone 7b-8 (Zone 8a)
Walk in Peace / I'm Charley's Mom.
Miniature Gardening Mules Tip Photographer I sent a postcard to Randy! I was one of the first 300 contributors to the plant database! Plant Lover: Loves 'em all!
Charter ATP Member Garden Ideas: Level 2 Seller of Garden Stuff Butterflies Birds Region: Georgia
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Ridesredmule
Nov 4, 2011 6:45 PM CST
Like the blind leading the blind. Girl. My memory ain't what it used to be but I'll try.... Rolling on the floor laughing Rolling on the floor laughing Rolling on the floor laughing Group hug

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