brunnera

lily603(6)June 22, 2013

after blooming in may brunnera leaves turn black. I assumed it meant the end of their seasonal cycle. now I wonder if it is a fungus that repeats year after year and, if so, can it infect other plants nearby. this year june 2013 I have removed most of the plant and put out in trash.my question is - is this normal for the end of their season or should I assume infection and remove altogether. i'm getting to the point where is a plant presents an ongoing problem with pest/disease I get rid of it.

Thank you for reporting this comment. Undo
woodyoak zone 5 Canada(5b)

Brunnera should stay healthy right up until frost cuts it down in the fall. What conditions is yours in? I have had one that is in a very dry location and too much sun sometimes get particularly ratty-looking, so it appears drought and sun-stress can leave them vulnerable. Could that be the case for you? If so, try moving it to a shadier location.

    Bookmark   June 22, 2013 at 11:38AM
Thank you for reporting this comment. Undo
mxk3(Zone 6 SE MI)

Ditto above, especially re: dry locations. They toast in dry soil.

    Bookmark   June 22, 2013 at 2:56PM
Thank you for reporting this comment. Undo
mxk3(Zone 6 SE MI)

Ditto above, especially re: dry locations. They toast in dry soil.

    Bookmark   June 22, 2013 at 2:59PM
Thank you for reporting this comment. Undo
lily603(6)

thanks for quick response...they are all in shade and moist conditions. I thought of hot/dry also and ruled that out.

    Bookmark   June 22, 2013 at 4:32PM
Thank you for reporting this comment. Undo
woodyoak zone 5 Canada(5b)

Could the problem be too much moisture? I actually grow mine in relatively dry conditions - I think they are native to relatively dry woodland environments. The one that gets ratty sometimes is in VERY dry soil under a roof overhang and gets some afternoon sun too. I think they need a sort of happy medium...

    Bookmark   June 22, 2013 at 4:58PM
Thank you for reporting this comment. Undo
gardenweed_z6a

My own Brunnera 'Jack Frost' displays the blackened leaves each year after blooming which is sufficiently discouraging & made me question its placement in my full shade bed. If it's a trait they intend to display year after year, I'll happily replace them with something that puts on a more appealing show and, after the fact, attribute the cost to an expensive mistake. I bought only one plant but divided it a few years after it was established. Following its early season splendor & delicate blooms, it hasn't improved on longer acquaintance.

I have it growing on the north side of my house where it gets whatever moisture Mother Nature doles out, either wet or dry, in Spring. After more than a half-dozen years, this hasn't appeared to either improve or diminish its disappointing performance.

Given the availability of so many other shade perennials that perform as my standards demand, such as hellebores, Jacob's ladder, hosta, Heuchera/coral bells, discarding them will be a sacrifice of only the cost of the original plants.

    Bookmark   June 22, 2013 at 8:46PM
Thank you for reporting this comment. Undo
rouge21_gw(5)

My "Jack Frost" looks good all season whereas my "Kings Ransom" always gets browned curled edges on the leaves.

    Bookmark   June 22, 2013 at 8:52PM
Thank you for reporting this comment. Undo
laceyvail(6A, WV)

I have the straight species in a couple of places, 'Langtrees', and 'Jack Frost'. Only 'Jack Frost' turns black, and it did it in a dry area and in a moist, but not too moist area.

    Bookmark   June 24, 2013 at 6:26AM
Thank you for reporting this comment. Undo
simcan(z5b/Toronto)

With Brunnera, as with Pulmonaria, I cut the plants back after flowering which spurs a flush of new, healthy growth that lasts the rest of the season. You may want to try this.

    Bookmark   June 24, 2013 at 11:37AM
Thank you for reporting this comment. Undo
Kat

I have 'Jack Frost' and I get some black leaves too. I've noticed that if it gets too dry, it affects more of them, so I really try to keep the soil from drying out.
Simcan, I'm going to try that this year. I never heard of that, but I'll give it a try. I'll still make sure it's watered well though.

Kat

    Bookmark   June 25, 2013 at 4:45AM
Thank you for reporting this comment. Undo
marquest(z5 PA)

I have never seen this plant showing any blackened leaves. I have it in my very dark shade hosta garden. It actually reseeds and I have had to remove the babies to other areas. In 5 years I have 5 new huge plants.

    Bookmark   June 25, 2013 at 12:19PM
Thank you for reporting this comment. Undo
simcan(z5b/Toronto)

@katusha, yes, I do this with several plants and it works very well...Brunnera, Pulmonaria, Lady's Mantle, Bachelor's Buttons, Husker's Red Penstemon, variegated Symphytum, to name only a few off the top of my head. Keeps things fresh-looking and healthy, as many spring flowering plants can look ratty after bloom. Sometimes I wait until the plant splays, showing the basal growth coming up and sometimes I just shear it right to the ground. I have never lost a plant this way.

    Bookmark   June 25, 2013 at 1:40PM
Sign Up to comment
More Discussions
Whatcha' doing?
What garden related shenanigans are you guys up to? I'm...
christinmk z5b eastern WA
Echinaceas in my Rain Garden
In a rare stroke of luck I just finished my rain garden...
northraleighguy
Potentilla question
Does anyone have experience with Potentilla fruticosa...
waynez5_ia
What plant are you anxiously awaiting the return of in the spring?
Well, maybe not *anxiously* awaiting but awaiting nevertheless. For...
mxk3
Zone 10b: Dog Friendly Ground Covering (Creeping Perennial)
I am considering replacing our front lawn (in a gated,...
fraustachowski
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™