13,520 Garden Web Discussions | Perennials

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logixsti(7)

I had the same question! I'm also zone 7b. I an thinking of just pulling them and putting them inside for the winter in containers as I've gotten such mixed answers as to their cold hardiness.

Pitimpinai - chicago should be a similar zone, if not the same, as us in 7b I would think. your friend had them outside all winter and they came back again next year? (for a few short years I guess?)

    Bookmark     September 17, 2014 at 11:14AM
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pitimpinai(z6 Chicago)

Yes, the microclimate in Chicago itself is much different from the surrounding area.
My neighbor planted it outside in front of her house. It came back a few years then died one winter. I also remember another friend planting it in her garden. Hers also disappeared after a few years.

    Bookmark     September 17, 2014 at 11:51AM
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laceyvail(6A, WV)

Uh Oh. You had the silver maple "pruned mercilessly." That almost always means that you had limbs hacked off all over the place. That kind of tree torture is common here and the result is a huge flush of very unstable and weak growth that is all but guaranteed to have limbs break and fall on the slightest excuse--wind, heavy snow or ice. Get an expert with proper accreditation to look at your tree and assess its safety.

then have it taken down ASAP

    Bookmark     September 17, 2014 at 7:00AM
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bernard_in_ohio(5b,6a)

Hello, laceyvail --

Thanks for writing to me.

Maybe I shouldn't have said "mercilessly."

After the main trunk, the tree divides into three equally giant limbs. One of those was threatening the house -- would have caused great destruction if...

On the advice of my contractor's arborist in August 2013, that mighty limb was removed right at the trunk. Another tree service had said, "Oh, no, you can't do that. The other two limbs will split apart. The tree will die."

The second arborist said, âÂÂLet me get my chainsaw.âÂÂ

The limb was removed, and the tree woke up in the spring fresh as a daisy. The wound was sealed and hasn't gone moldy or oozy or anything. For the rest, the tips of a few branches here and there were trimmed.

My house is safe(r), but the tree is still a monstrosity. Completely out of scale with my house. Depending on my mood, removing it bounces between my to-do list and my bucket list.

Cheers!

Bernard

    Bookmark     September 17, 2014 at 10:40AM
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rusty_blackhaw(6a)

B. grandis lasted a couple of years for me, but apparently even moderate winter cold here was too much for it.

Very nice plant though for a mostly shady border.

    Bookmark     September 17, 2014 at 8:41AM
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dbarron(z7_Arkansas)

I accquired it when I was in college (way back in the 80s) and know I transplanted some to my new home back umm say fifteen years ago. It since died out at parents house (but then it was untended and unwatered).
It seems pretty reliable here, though I have seen a late frost kill the tops once or twice (but it does resprout at ground level).

    Bookmark     September 17, 2014 at 9:14AM
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Campanula UK Z8

I am amending my suggestion here since transplanting, rather than division, can be done (carefully) at any time. Mucking about with pruning saws and trenching spades is a different proposition to merely relocating an entire plant......although even this would be far more than the amellus types can bear - spring is the ONLY time for dealing with either amellus or frikartii types.

    Bookmark     September 16, 2014 at 2:11PM
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sunnyborders(5b)

I love 'Alma Pötschke', AM, not least because I take the colour to be magenta and I don't take kindly to people trying to ban particular flower colours from other peoples gardens (as per Gertrude Jekyll).

Interesting comments, Campanula.

"When do I transplant Asters?"

Perhaps the first answer should be, as you indicate, "Which asters"?

There's evidently more latitude with some than with others.

I have used both New England asters and Frikart's asters for years. The former is extremely hardy here and the latter (at least in my experience) is definitely not. Individual Frikart's aster plants may last five or more years, but the large majority I've planted lasted a notably shorter period of time.

Wild New England aster is extremely widespread in North America (east of the Rockies) and it has also naturalized in Europe. On the other hand, Frikart's aster is a hybrid between Italian aster (Aster amellus) and Thomson's aster, both plants from mountainous regions of Europe and western Asia

    Bookmark     September 16, 2014 at 10:14PM
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ArcadiaCam(8b)

THANK you! That's it exactly. Thank you so much!

    Bookmark     September 16, 2014 at 3:40PM
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floral_uk z.8/9 SW UK

It's quite often seen as a house plant in places with colder winters.

    Bookmark     September 16, 2014 at 4:07PM
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Campanula UK Z8

I have been there - weak with greed and lust. boundless gratitude and massive thanks.

    Bookmark     September 15, 2014 at 6:36PM
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wantonamara Z8 CenTex

I hope for a safe arrival.

    Bookmark     September 16, 2014 at 3:30PM
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emerogork2(5)

" I think the Hollyhock-like malva you were looking at may have been the sylvestris malva. Your picture could be the moschatta malva. (I think)."

You got that right,...
Thanks.

    Bookmark     September 15, 2014 at 3:58PM
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green_go (Canada, Ontario, z 5a)(5A)

My sedums 'Frosty Morn' had been always leggy , floppy and ugly towards the middle of the summer. I was almost ready to get rid of it completely when I read an advice on gardenweb about cutting it back by 1/3 in June to make plants bushy, short and non-floppy. I tried it this year and I love the result. I will definitely try this trick next year with other sedums like Neon and Autumn Joy. Same with New England asters.
Here are 3 of my sedums 'Frosty Morn' now - full, short and attractive

This post was edited by green_go on Mon, Sep 15, 14 at 19:41

    Bookmark     September 15, 2014 at 7:39PM
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karin_mt(Zone 4)

Thank you all, for your continued kind words. Campanula, yes, exactly. Setting the garden (and home) within the larger context is always the tricky thing, right? Like, on one hand you want to have your way over the landscape, to tame it and mold it into more of what you like. But on the other hand, the cues really need to come from what's already around you otherwise it's either going to be a ton or work to fight nature, and/or it won't even look right when you're done. So the rock theme really plays well here.

GreenHearted, that's a great question. I have done the foundation differently on different stone projects here. I'm not an expert on this, but none of my walls have fallen down yet! (With the older ones being over 10 years old.) You are quite right, a dry-stacked wall is an inherently flexible structure and is very forgiving of expansion and contraction of the ground.

On this wall, I dug/scraped down to the subsoil layer, which is a very compacted, concrete-like substance. I didn't put down gravel or anything, mostly because the very idea of that pushed the project into the realm of unrealistic for my diy self.

Stonework does have a tendency to slowly sink into the ground. Rocks that used to be standing above grade are now below the level of the grass. I'm not sure how much a gravel foundation would help that. One of my walls has a gravel foundation and it hasn't behaved any differently than the others as far as I can tell.

Not sure if that answer helps or not! :)

    Bookmark     September 13, 2014 at 11:55AM
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greenhearted(5a IL)

That helps a lot, thank you Karin!

It gives me hope that I will be able to replicate this one day. I love the flush ledge around the wall too... you can probably get a wheel of the mower on it and not have to line trim.

The cinder block base for the steps is another great idea!

    Bookmark     September 15, 2014 at 11:33AM
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mori1(5b/6a)

The little "football" shaped thing is one seed.

    Bookmark     September 14, 2014 at 5:52PM
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lazy_gardens

Thank you.

    Bookmark     September 14, 2014 at 11:31PM
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sweet_betsy No AL Z7

I have had a half dozen of these for five or six years. In my garden of many pines and high, bright shade they have grown slowly. In fact, they were moved to a sunnier spot in year two and have done better. In my experience they have produced more rebloom each year and are quite lovely at the moment.

Since these were an impulse purchase by my husband and since I prefer the big-blooming "pride of Mobile" varieties that
are blooming machines in the spring, I have considered taking them out; however, these have not required pruning to keep them tidy (as the large varieties do).

This post was edited by sweet_betsy on Sun, Sep 14, 14 at 7:17

    Bookmark     September 14, 2014 at 7:07AM
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lilsprout

Mine has not done well. I too moved mine to a sunnier spot. Hopefully it will do better now.

    Bookmark     September 14, 2014 at 11:31PM
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dbarron(z7_Arkansas)

Lazy S is a great place...PD has unusual stuff and unusual prices (lol), and not necessarily very large plants.

    Bookmark     September 12, 2014 at 8:58AM
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gringo(z8 VA)

arbo_return.I haven't had the pleasure of ordering from either place..

dbarron. I noticed Jung seed has quite a selection of named Hellebore cv.'s. It's my understanding, you've got to be nearly a pro, to attempt starting those by seeds.

I think, much of what I may be wanting to purchase now, is not available until the spring, but is probably better for fall planting, in my area, in autumn.
Usually having a typically short spring growing season here, with rather mild winters. With the rare exception of this past one, which didn't help matters, of new plantings, as last winter so cold, it was horribly destructive with some plants freezing solid, or heaving nearly entirely. I had never seen such things as foxglove or Penstemon seedlings turn brown & die, so quickly.

    Bookmark     September 14, 2014 at 7:40PM
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laceyvail(6A, WV)

Yes, Klehm's is a very fine nursery.

    Bookmark     September 14, 2014 at 6:38AM
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gringo(z8 VA)

It should be easily found by search, using the terms 'garden watch dog. + Khlem's'. Then there should be a link on the main page for that vendor, to make a post feedback about your positive experience, if you are registered & logged in.

    Bookmark     September 14, 2014 at 7:20PM
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lilsprout

" up the stairs (they do use the stairs) of the hillside "

Lol I couldn't help laughing at this!

    Bookmark     September 13, 2014 at 10:24PM
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emerogork2(5)

Many plants thrive by being chewed up by animals. I believe that butterfly bushes, and maybe forsythia, benefit from being cut down every year. I had butterfly bushes many years back and never pruned them. I think that is why they died out.

I planted more in the same place and learned that they want to be chopped back and I have been successful with them ever since.

Even if deer don't eat these plants, other animals do and it works for me.

    Bookmark     September 14, 2014 at 3:04PM
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flowergirl70ks

I'm remembering reading somewhere the time to prune lavender is right after blooming.anyway thats what I've always done and my plants live a long time. As a matter of fact I've lived here 47 years now and I've only planted lavender twice.

    Bookmark     September 14, 2014 at 10:33AM
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calistoga_al ca 15 usda 9

Here in the mild winter west my lavender is always cut back after the bloom has been spent. Al

    Bookmark     September 14, 2014 at 11:24AM
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nydepot(6)

Thanks. Just checking. I do find perennials where they say do it in the spring.

    Bookmark     September 13, 2014 at 7:12PM
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dbarron(z7_Arkansas)

Those are typically the heat lovers, like mallows where they're late to break dormancy anyway (the ones recommended to move in spring)...but I think that advise is mainly for northerners where things are less hardy.

    Bookmark     September 13, 2014 at 7:15PM
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