What do you see on your garden walks? 2012

[Hoy]

Ferns are remarkably drought tolerant! They can seem completely dessicated but revive when they get water. Th rochebrunianum is one of my favorits too!

[RickR]

Miscanthus 'Gold Bar' seems to be hardy in zone 4, at least for the last four winters...  Not sure if it will ever get very big, though.
              

As is the Cinnamon vine (Discorea batatas) complete with bulbils, and climbing on a Meader persimmon.
              

Three cultivars of Japanese Forest grass...
Hakonechloa macra 'Albo Striata'
        

Hakonechloa macra 'Aureola' and 'All Gold'.
        

Aster sericeus.  The second photo also shows the silver seed stalks of Echium russicum.
        

Part of a garden, showing Jeffersonia dubia, Brunnera 'Jack Frost', a couple of hellebores, Hakonechloa macra 'All Gold', a couple species impatiens (balfourii and glandulosa) and a cultivariant of Chamaecyparis pisifera 'Sulphurea Nana'.
              

[cohan]

Some nice colours and textures, Rick!
I can't quite tell from the photo, what sort of plant is Miscanthus- a grass?
The 'cinnamon yam' I think was said by Richter's Herbs to be hardy for at least one grower in z3 in Alberta; I killed one a couple of years ago, but can't quite remember how/why -- I don't think it was winter, maybe it took me too long to find a permanent spot for it and it expired in the small pot, long before winter...lol I'll have to try again when I have a spot pre-prepared! Do you harvest the tubers?

[Spiegel]

Rick, is the Miscanthus 'Gold Bar' a  named form of Miscanthus zebrinus?  I have the latter and they are remarkably similar.  Miine is at the 5' mark and doing well.  It seems hardy so far (4 winters, but not what I call normal winters as far as cold goes).

[RickR]

The pic of the Gold bar miscanthus isn't very indicative of the genus.  Most of the species cultivars normally grow 3-6ft.  Gold Bar hasn't shown up here until the last several years, and I haven't seen any hardly any larger than mine yet. Certainly no flower heads.  I use to have a few different kinds, but they take up so much room that I now only still have 'Flamingo'.  It's kinda behind with the white fluff in the far right in this fall 2011 photo.
          

Zebrinus is a Miscanthus cultivar, too.  Both come from Miscanthus sinensis, and Gold Bar is a section originating from M. sin. 'Strictus'.  Zebrinus leaves are more than half green with yellow horizontal bands.  Gold Bar is 50% or less green, with the remainder yellow, less vigorous, more compact, and shorter.  Unlike Zebrinus, I am not even sure if it flowers.  At least, you never seen pics of it flowering.

In my zone 4 climate, Zebrinus is hardy, but in some winters, clump will reduce severely.  Consequently, division is seldom needed.  With most miscanthus cultivars, plants must be divided every 3-5 years if you want to keep the size in check.  Gold Bar is thought to be less hardy.

[Lori S.]

Rick, what are the trees you are showing in your photo above?

[RickR]

Rick, what are the trees you are showing in your photo above?

Pic taken 30 Nov 2011.  From left to right:
Pinus sibirica
Chamacyparis pisifera thyoides 'Heatherbun'
Pinus strobus 'Densa'
     (senna seed pods above)
Thuja occidentalis 'Warreana Lutescens'
Pinus strobus 'Wintergold' (foreground branch)

[Lori S.]

Wow, very nice, Rick!  The Chamaecyparis and Pinus strobus are especially striking!  
I wonder if the Chamaecyparis would do OK here?  Has anyone out there tried it?  
I noticed that some sites refer to a cultivar called 'Heatherbun' (one word) as Chamaecyparis thyoides, an eastern North American species... a different plant from yours, I take it?

[RickR]

I looked in the World Checklist of Conifers and you are correct, Lori, and the thyoides cultivar is what I have.  Note that the official description is round-topped, which mine was for many years, and I had contemplated taking it out many times because of the bland outline, but never got around to it. After 13 years it is getting some character, and I like it much more.

I have tried a couple other C. thyoides dwarfs here in zone 4, without much success.  The tree is native to wetter areas in the east.  Back in 1996 I bought a dwarf named Chamaecyparis pisifera 'Glauca Nana'.  Well it was hardly a dwarf, and when it coned I discovered it was not that species at all, and was actually this blue form of C. thyoides (the tree).  Every year it winterburns, and some years very severely, but it always recovers nicely.  It kinda has an alpine look for us here in the "flatlands".  Here it is in the center of the photo.  Peaking up in the foreground is the Qinghai spruce (Picea crassifolia).
        

I neglected to comment on the Cinnamon vine.  Four years ago someone offered me some bulbils in a trade.  I planted them in a few places, and I only noticed them emerge in one area, and they didn't return the following year.  I though I had lost them all.  But now this season I found this one in a another of the places!  So I am far from using it as a edible crop.  I suspect the Apios americana I received this year will react similarly, as I have no constantly moist areas for it to be happy in.  From what I here, that may be a good thing (!).  

[Hoy]

Chamaecyparis thyoides is hard to get here, however I grow several other of the genus. The problem is, they are no dwarfs any longer! Neither are the other conifers I have.

Cunninghamia lanceolata has no hurry but has reached almost 3m now.  Metasequoia glyptostroboides is far quicker. I can't see the top any longer although the stem is very slender. Also the Sciadopitys verticillata has increased the growth speed and is 4-5m tall and very slim. The picture lies. (The dead tree is a birch I have killed - it was getting too big)

     


I got this redwood (Sequoia sempervirens) as a cutting some years ago. Wonder how it looks in 1000 years  Taxodium distichum isn't yet like those I encountered in Florida! The Wollemi pine (Wollemia nobilis) is my last acquisition (from Kew Garden). This Aussie has survived 2 years outside till now!
 
     


Had a walk in a forest of Monkey Puzzle trees (Araucaria araucana) in Bergen last week!

 

[cohan]

Some nice trees, Rick and Trond! I have very few spots where I'd like to plant anything taller than about 5-7m. I did stick a few Acer rubrum seedlings in the edges of the natural forest here, and have a couple spots where native birches are dying that I might be able to put something- I have seeds of Honey Locust (I think? forgetting the Latin just now.. seeds are  a few years old, hoping they'll still germinate...),, there are no pea trees at all here- I don't count Caragana arborescens as a tree, regardless of what the specific name says, and wouldn't want it on my acreage...

[McDonough]

This is my favorite topic on the forum, so many good things to see and learn about here.  I can't tell you all how many times I started to prepare a posting here, then ran out of time and thought to myself "I'll post something next weekend", and on and on it goes.

So here are some garden walks scenes from last weekend and this weekend.


Left:  garden scene with one of my selected Epimedium hybrids that has red leaves all season long, brighter red in late summer.  Pulmonarias and Corydalis lutea surround.
Right:  great late summer foliage on Pulmonaria seedlings, red-brown tinged leaf tips on Cypripedium parviforum var. pubecsens.



Left:   Gentiana clausa, regular blue form, from along the Nashua River about 1 mile from my house.  In cultvation, it grows larger and more floriferous.
Right: Gentiana clausa alba, a robust white form, now a mature plant 30" tall x 30" wide, each stem with 4 verticillasters or whorls of bloom.



Left:   Kirengeshoma palmata is still going strong, although foliage got tatty with 6 weeks of drought.  The flowers are a late season delight.
Right: Kirengeshoma koreana, planted as a perennial nursery fine last year, is still small, less that 2', with enlarging yellow egg-like buds that have stayed as buds forever, and the first thick waxy bloom opened today (my photo is from last weeks while still in bud). I wonder is this species will stay smaller, it certainly is much later blooming.



Left:   Ariseama seed fruits are setting, this one in an impressive extra-robust form of Arisaema triphyllum x tashiroi.
Right: Two seed cones on Arisaema sikokianum, still green and maturing, amazingly surviving the fall of an ancient massive Sugar Maple just 2 meters away and surviving the trampelling of two tree cutting crews to do the cleanup.



Left:   Agastache - 4' tall hybrids from High Country Gardens that have been in splendid full bloom for months.
Right: Patrinia rupestris, all those that were planted on enbankments seeded into low-lying paths, for more moisture perhaps, very pretty toothed foliage and abundant yellow flowers late in the season.

[RickR]

That's the thing about dwarf woody plants, Trond.  They may be half or less the normal size, but they never stop growing.  You're showing a lot of interesting normal sized species, and I never tire of that most excellent Sciadopitys.   And those Monkey Puzzle trees are AWESOME !!!

I've heard that the Wollemi pine isn't taking to human cultivation very well in general.  A lot of individual growers (not production growers) seem to be having problems.  Kudos to you, Trond!

Honeylocust (Gleditsia triacanthos [inermis]) are nice trees, and with the "no leaf raking" in the fall, I've wondered why they are not chosen more.  Nectria canker is supposedly a problem, but not in my area. 

My neighbor just had an old River birch removed.  I was kibitzing with him while the deed was being done, and ended up having the guy come over and remove my big Green ash.  (With the Emerald Ash borer only 40 miles away and closing, it's only a matter of time before it dies anyway.)  Now I have a rare opportunity: room for another full size tree!

Mark, that red epimedium is a show stopper.  It might be too red for me, but I can see how the general public would go ga-ga over it!  I was at another chapter member's garden last week; their kirengeshoma was seven naked sticks.  Mark, those Arisaema sikokianum fruit heads are enormous!    I grew some from seed once.  For reasons unknown, they all succumb the third winter.  Wouldn't mind trying again sometime...
Did I mention yet that my Agastache aurantiaca (planted in 2011) never returned this year?  I hadn't cut it back at all for winter, as per your advice.

[Todd Boland]

Great show Mark!  Rick, I am really taken with the Aster sericeus...and all those conifers are stunning.  I have a few 'dwarf' chamaecyparis which are no longer so dwarf as I like!  Money puzzle have been tried outside here but only survived one winter, and that was with lots of protection.

Just survived Tropical Storm Leslie...hit here this morning with 75 mph winds...lots of fallen trees all over the city and I lost electricity for 11 hours.  My garden was spared thankfully but I have yet to see the damages at our Botanical garden...tomorrow will reveal all.

[Spiegel]

Just a few things in the garden.  Zauschneria has started blooming in a natural crevice on the back side of the cliff.  Seeing that makes all the work cleaning out the crevices and preparing them worthwhile.  In the upper crevice garden daphne and astragalus are reblooming.