13,520 Garden Web Discussions | Perennials

kill it now.. it is INVASIVE.. and if you let it seed.. it will take over..
i have lived here for 12 years.. and i am still trying to kill it..
those seeds must have a half life of a bazillion years ... because i try to never let it go to seed ...
its a nightmare..
ken


i have a plethora of columbine in near full shade.. the deep purple ones that reseed freely.. not the foo foo kind ...
being biennial at best.. if this is the flower year... i dont know if its worthwhile ...
and mine are already losing the flowers .. in the drought and heat ...
ken


I'm not sure which plant you mean by Rock Cress - could it be Aubretia? In which case I can't help you with the seed germination question except to say, if it is Aubretia the seedlings might not come up the same colour as the parent. it tends to revert to its native mauve.
As for dividing it I can't see why it would need dividing after just a few months. Aubretia looks good left to form big cushions two feet or so across, especially if spilling over a wall. It would rather defeat its best feature IMO to divide it into prissy little clumps. It retains its form best if clipped over with the shears after flowering.
All this is predicated on my having guessed correctly what you mean by Rock Cress.


I too saw one at a nursery. The blooms actually looked really nice.. but they had most of their plants under a pretty dense shade canopy. So I would assume that the bicolor...ness can fade out and have it end up being just plain purple looking like Ech..manic noted.
They also only had the single stem growth with bloom on the top (not branching at the base).. so they wouldn't make it through the winter here.


That is Agastache hybrida 'Acapulco Trio'. I got them at Lowes last year for a dollar on the clearance rack. There are 3 colors together...orange, red, and a light purple color. They are one of my favorites. They root from cuttings very easily.


For ONCE I had all the plants I wanted to pick up in the Bluestone sale ready in my wishlist so ordering was a breeze.
Got them yesterday and it's gonna be 90+ for a week.
They may just stay in their little pots in the shade until this hot spell passes on next week.

Definitely a shurub, I think. Unless this is a perennial-only garden. Clethra makes a nice native shrub choice for part shade. Otherwise, you need tall wildflowers. Aconitum napellus if you dare...it is very poisonous but looks great in late summer.

thalictrum. Esp if astilbe is real tall, like ostrich plume or ....can't remember the other one....
But it really depends on the astilbe....some are only a foot high and have bronze foliage....the gold hakone grasses are gorgeous with those; so is trollius gold queen; some have red foliage, some are 3 feet tall....no one size fits all.


We've had wind in the range of 20-40 mph for 3 continuous days and evenings now. It's been horrible! Today I noticed all my Heuchera which were blooming are tipped completely on their sides - foliage and everything. Had I not staked the Baptisia, I can only imagine what I would be facing.
Kevin


That ginger goes completely dormant. I let them dry out, dig them up, and winter them in a plastic grocery bag, with the handles tied loosely, not sealed or it can rot (I overwinter many things this way). It will take up about as much space as a large apple, and requires exactly NO care until spring. I store the bag in an 18 gal. rubbermaid tub with no lid on it. I can fit fifty or sixty large plant rhizomes in that tub in this fashion. Probably too late for your poor plant, but FYI for the future.


maniac, i've had it 2 yrs. not invasive for me; had no idea it was.
best,
mindy
ken,thx much for that note,
for the 1st time in 30 yrs, i actually lost interest in the garden for the past while.hence no posting. go figure.
it's coming back now, but a bit sedated.in the increased heat of july and august, i will not be out ; can't handle it unfortunately. so glad all of you generous and helpful posters are still out there being your good ol' helpful selves! GWers are so lucky to have you!
best,
mindy
www.cottonarboretum.com/
Here is a link that might be useful: cotton-arbo retum

Hand-weeding is how I really get to see how everything is doing - are the roses sending up basal breaks? Do the brown snakes still live under the hydrangeas? How dry is it under the big hostas? Then I bundle up most of the weeds and put them in the compost bin and feel very virtuous.

Because that article dealt only with agricultural crops, I don't know what impact these super weeds might have on we the home gardener. I guess it would be interesting to hear if anyone who uses a lot of Roundup or whatever is seeing some of the same results. Companies like Monsanto kind of drive me crazy, but that's too political for this forum.
I don't mind weeding at all mainly because weeds aren't that big of a problem. It really is true if you stay on top of them, you see less and less as the years go by. Weeding also helps me 'get in the zone' so-to-speak. If I'm having one of those days, where I just don't know what to do first, I start weeding. It calms me down, it centers me, it helps me focus.
Kevin

Yeah, quack grass is the scurge...sure feels good when you can dig up a huge piece that's a foot or two long, though.
I've been digging out golden raspberries from the edge of my flower bed. Years ago, I gave it a spot in my garden because it managed to overwinter in the pot (forgot to plant it). I was rewarding it for its tenacity; little did I know it would overstay its welcome. :)
I guess it's true about the saying, a weed is just a plant growing where it's not wanted.

That's a good point. It's not just what kind of weeds you get, it's the health of them too. I really hate pulling spindly tough weeds, the lush tender ones in good soil seem to be much easier to pull. I'm seeing a little of that as the soil improves but I still have plenty of bad soil areas.
This spring I had lettuce sprouting in a couple flower beds and in the cracks of the driveway. I forgot I let a plant go to seed last year! Also hosta seedlings are all over one of the beds on the side of the house.... I don't consider them weeds since I will try to find homes for them, but they sure are a nicer surprise than say quackgrass.





alina, I am definitely inspired to stick with mine now. :) It must be just beautiful at 3' wide. Glad it is finally blooming!
Hmmm...I wonder if maybe I should cut the blooms off mine since it's having such a hard time getting established.
Connie,
It is well worth trying. Even without blooming. Good luck with it!