13,520 Garden Web Discussions | Perennials
I'm seeing more powdery mildew than usual this year on the phlox in our garden. Flowering or not, I need to cut much more back to limit inoculum entering the soil.
The one exception is variegate 'Nora Leigh', which is blooming late and currently shows no powdery mildew. Perhaps the late blooming is related to me usually positioning it further back (than many phlox) in the perennial beds.
thyme2dig, yes, the variegated Iris foliage does get a little junky but maybe it's just me, but I don't think it's as noticeable. I've cut mine back about 3 weeks ago. Still, it does come back clean and fresh every spring.
david883, It is a pretty combo, I just wanted to point out to you, that there are two different Iris in that photo. There is a variegated Iris in the front, that is not blooming yet, and behind it is a plain yellow Iris. The variegated blooms a purple flower that smells like grapes, after the yellow Iris. Look forward to your spring photos. :-)
Aseedisapromise, love your color combinations.
Dee, great blue Iris.
Beautiful iris pictures, I really love the fancy ones..... Reminds me of another post about plants you've loved and then left and then returned to. I can feel an iris addiction coming on :)
ASeedisapromise- I remember my first Iris order from a western grower. I never knew the rhizomes could even get that big! Trust me they got smaller fast enough once they were planted in my garden!
Hm, must be a climate thing or something. I have three clumps in my border, going on for 4 weeks without rain, just heavy soil with some kind of depot, not wilting, just the scruffy weeds at their feed are dying.
They stand upright all winter, so I left them alone& chopped them down in late spring, so far no seedlings to be found.
I have some clumps of Rudbeckia nitida Herbstsonne (slug bait) which I will shovel prune and replace with a LQ division.
keep enjoying your lovely plants,
bye, Lin
LOL, gazania! I will go with you when you go out because obviously I need to get out more as well! Same here - reading about a lot of sedums I never heard of just in this thread alone. I tend to have more groundcover sedums, but may look into these taller varieties as I am going to be planning a "drier" bed for my irises.
Thanks, netcub, for posting this. Boy, bet this would look great next to some kind of chartreuse-ey plant....
Dee
idabean - That's a perfect way of describing it - a zinnia binge.
Generally, I'm kind of a perennial guy. Most annuals just don't do that much for me, but when it comes to zinnias - well, that's a different story.
Sometimes I feel like I should do perennials or native plants or something in my Blvd. gardens, but it's kind of my 1 indulgence with annuals and it really isn't much of an indulgence $$ wise because a couple of packets of seed, directly sown does the job. And each year, I get to try some new zinnias, some different color combos. It's great fun.
Kevin
I did not miss the suggestion to make a sketch of the garden, but haven't had the time.I've been t00 busy digging up plants.I also want to post pictures after some of big clumps are out and there's some earth showing.
The shrubs are staying, I hope most of the grasses will too, as they are so difficult to dig up.
I keep finding orphan plants: a Happy Returns lost in the iris, I think I found a clematis recta that had disappeared years ago.\
I like the idea of a "Lost and Found" thread. But maybe that's covered by "Plants that surprised you by coming back" that's current.
idabean
Christinmk, I do shear my pitcher sage back, but somehow, I missed a lot of the stems this year. Some are short, many are well over 4-ft tall and this weekend's rain flattened a couple plants. I'm also noticing some new ones that came up when I wasn't looking.
Blue and purple perennials blooming now:
Agastache foeniculum - 'Black Adder' is going strong, Blue Fortune and species are finishing up
Geranium 'Rozanne'
Hosta 'Halcyon'
Buddleia 'Black Knight'
Liatris scariosa
Liatris aspera
Salvia azurea
Salvia guaranitica 'Black & Blue'
Phlox 'Blue Paradise' - this is such a long blooming Phlox!
Some mint
Rebloom on Penstemon smallii
I always remove the seed capsules - which involves cutting off the top 4" or so of the stem usually, plus individual capsules that formed from flowers in leaf axils lower down the stems. I started cutting them off this week. Removing them has certainly never bothered my hibiscuses - and I am too afraid of the risk of huge amounts of seedlings if I didn't remove the seed capsules! You did the right thing.
Just a couple of thoughts off the top of my head:
If it's a species aster, the blooming may seem rather sparse in comparison to most of the hybrids on the market. You should try to find out what you have.
How far from the house is it planted? Reflected heat from the house itself could be frying the plant. I had problems with an aster not blooming the way it should and then realized it was planted too close to the sidewalk. Heat bouncing off the sidewalk was cooking the poor thing. I've also moved all my asters to a SE location because the SW location was just too hot in the afternoon. They're doing much better.
My asters like regular moisture. Drying out too much can cause fungal problems with the lower leaves.
Does it need division? Asters are generally robust growers benefiting from frequent division.
Kevin
aachenelf, it is right next to the house. It's actually surrounded by concrete. The foundatino is behind it, and immediately to the left is the concrete driveway. 2 feet in front of it is sidewalk.
Thank you! I may try moving it and see if that helps. It's not huge enough to divide yet.
I'm working off of memory here, but on another gardening forum some time ago, a gardener told of how her balloonflowers would first bloom double in the spring, then the reboom would be singles. The following year they would repeat--double, then single. Maybe it is a response to an environmental factor, such as higher heat or some other stress. Or maybe the plants were just too tired to fancy up their flowers with extra petals the second round. ;)
Even more factors can come into play from one year to the next. And reverting has varying causes among different plants; it is actually quite complex, having the plant determine what those cells are going to produce. Maybe the particular strain you are growing is less stable with respect to doubling.
Funny this should come up, I noticed it on my 'Astra Semi- Double Lavender' balloon flower the other day.
Perhaps certain cultivars more prone to this? I never noticed it on my Hakone Double White when I had it.
Here is the interesting thing the ASDL does- little curly-q's at the base ;-)
CMK
Just starting:
Asters Harrington's Pink, Alma Potske (sp?), September Ruby, Purple Dome, yellow mum whose name I don't remember, Cheryl something-or-other.
Still to happen:
toad lilies
some single mums that I don't know the name of
Hibiscus "Cinnamon Grappa" and another one, forgot name.
My memory is bad!
My Helenium always blooms in late June, never in autumn.
A word of caution about moving balloon flower--according to the information I've read they have a taproot and it's possible mature plants may resent transplanting.
roxanna - I'm in north central CT a couple miles south of the MA state line so a trade is definitely a possibility. Seed harvesting is addictive so I could also offer you some Stokes aster/Stokesia laevis seeds. Do you already grow Polemonium/Jacob's ladder? It's a great blue in late spring. The Stokes aster blooms in mid-summer but also offers a stunning blue contrast to daylilies.
Another blue I would never be without is Baptisia australis/false indigo which blooms in late May where I am and is not only blue, it's tall. The blooms last for weeks and the seedpods that form are distinctive.
I'm running out of space in my beds thanks to winter sowing + my own maturing perennials but I appreciate the offer of plants.
My seed-grown plants were all grown via the winter sowing method. I filled my perennial beds with plants in just 3 years' time by trading seeds here on the GW Seed Exchange & harvesting seeds from my own perennials. It's lots more fun than the whole lights/heat setup. Check it out when you have time. I'll be more than happy to answer your questions if you decide to give it a try.
Oh, in case you have doubts about the winter sowing method--I grew apple, pear & ornamental dogwood trees via winter sowing and they're as tall as I am this year. Also grew spirea, St. John's wort & other flowering shrubs.
Here is a link that might be useful: Winter Sowing website
Also check for Mexican hat flower (ratibia) it's fairly common in seed mixes.... If it's the cosmos you'll want to put it somewhere warmer for the winter, I don't think it will be hardy for you otherwise.
It dosent look like other of thoes do u have a picture of your own