OT--dianthus

poorbutroserich(Nashville 7a)April 2, 2014

Hello. I have lots of dianthus. Not sure how to best fertilize (or not) do they need lime?
Can I cut back all the ratty foliage?
Thanks!
Susan

Thank you for reporting this comment. Undo
seil zone 6b MI

I trim mine off right to the ground in the spring and let them grow back. I just fertilize with what ever I'm using on the whole bed.

    Bookmark   April 2, 2014 at 10:14AM
Thank you for reporting this comment. Undo
pat_bamaz7

I think they like a more alkaline soil than ours, so I give mine some lime.

    Bookmark   April 2, 2014 at 12:00PM
Thank you for reporting this comment. Undo
bluegirl_gw

They really thrive in the alkaline soils I've lived on--don't know if they need it, though.

Yeah, clip them down in the spring if you want. I've never bothered to fertilize--they seem to do just fine without--doubling in spread every year. I love dianthus!

    Bookmark   April 2, 2014 at 1:04PM
Thank you for reporting this comment. Undo
rosefolly

They are like lilacs in that they are one of the plants happier with a moderately alkaline soil.

    Bookmark   April 2, 2014 at 3:40PM
Thank you for reporting this comment. Undo
poorbutroserich(Nashville 7a)

Great. So if I want to add lime what do I use?

    Bookmark   April 2, 2014 at 7:11PM
Thank you for reporting this comment. Undo
cath41(6a)

Poorbutroserich,

There is limestone bedrock in the Nashville area. You might want to research whether you need lime or already have it. Too much of anything can cause problems.

Cath

    Bookmark   April 3, 2014 at 12:34AM
Thank you for reporting this comment. Undo
poorbutroserich(Nashville 7a)

Cath, I believe I am on granite. I have floppy pinks...Would fish emulsion help?
Thanks

Susan

    Bookmark   April 3, 2014 at 8:08AM
Thank you for reporting this comment. Undo
cath41(6a)

Susan,

I am no expert on pinks as very few grow well on my (albeit alkaline) clay. The only two I have seen thrive here were an unnamed one, identified here as Rose de Mai, and Neon.

Cath

    Bookmark   April 3, 2014 at 6:41PM
Thank you for reporting this comment. Undo
Campanula UK Z8

What sort of dianthus? As a rule, they don't need lime unless you have acid soil (in which case, there are better choices than dianthus). More important than ph, I think, is getting the watering right - they hate sitting in wet soil. As for cutting them back, depends on the type.

    Bookmark   April 3, 2014 at 7:05PM
Thank you for reporting this comment. Undo
poorbutroserich(Nashville 7a)

Dang Camps! I knew you were going to force me to get out the Latin. I am unable to italicize so forgive me. They are the allwoodii and similar. Clove scented. The old fashioned ones. Inchmery comes to mind. Not plumarius. Is that helpful?
My ph is close enough to neutral that I consider it neutral. I think humidity is more my problem. How can I find gravelly grit to improve drainage?
Cath, Rose du Mai does well for me too.
Susan

    Bookmark   April 3, 2014 at 8:09PM
Thank you for reporting this comment. Undo
AquaEyes 7a New Jersey

If you want "gravelly grit to improve drainage" but don't want something which will "lime up" the soil, look for aquarium gravel -- the cheapest you can find. Otherwise, do the vinegar test on anything else -- if a few drops on the rocks makes things fizzle, then there's limestone in the rocks.

:-)

~Christopher

    Bookmark   April 3, 2014 at 10:14PM
Thank you for reporting this comment. Undo
Campanula UK Z8

I was going to suggest chicken grit - far, far cheaper than alpine grits or other horticultural grits.....and you can get the mixture of flint and oyster shell which dianthus love.

Dianthus X Allwoodii pinks - yep, you can snip out the old ratty looking stuff - take out the entire old flowering stem - there will be new growth at the bases of each clump....and try to keep up the deadheading - these old pinks used to be once flowering but many of the Allwoodii types (most famously, Doris....and Inchmery of course) will flower in flushes thoughout the season.
Interestingly, the Allwood family gardened on clay - took years of amendment, but anything is possible, right?
Don't forget to take some cuttings mid season (pipings) nothing easier than popping a few stems around the edges of a terracotta pot with a nice gritty mix. Guaranteed success.

    Bookmark   April 4, 2014 at 6:40AM
Thank you for reporting this comment. Undo
poorbutroserich(Nashville 7a)

Dang Camps! You read my mind! I've been researching dianthus propagation. You make it much simpler than the books.
Aquarium gravel and chicken grit. Sounds great. Christopher we should swap some!
As always, thanks!
Susan

    Bookmark   April 4, 2014 at 2:21PM
Thank you for reporting this comment. Undo
AquaEyes 7a New Jersey

Susan, that could be a possibility -- in a year or two. I have a few coming in a couple weeks, but remember that I'm just starting this garden. The beds were made and planted last year with just roses, and this year will be the companions. As far as Dianthus, I have the following coming:

'Bath's Pink'
'Fire Witch'
'Greystone'
'Inchmery'
'Jan Louise'
"Mom's Cinnamon Pink"
'Mrs. Sinkins'
"Old Vermont"
'Raspberry Surprise'
'Rose de Mai'

My plan was to use the Dianthus at the front of the log edging, alternating with some sprawling Sedums and various blue- or purple-flowered "others" (Lithodora, a couple Veronica, a couple Campanula, etc.) . I was thinking that planting them high in the raised beds would give them the drainage they prefer. I'll have to remember to get some garden lime or crushed oyster shells to sprinkle around them. I wonder if I could just bury a whole oyster shell under the roots -- I work in a restaurant and have easy access to them.

:-)

~Christopher

    Bookmark   April 5, 2014 at 1:10AM
Sign Up to comment
More Discussions
Thoughts on pruning? I'd love to see photos of your roses post-prune!
Hi all, I am gearing up for my first major pruning...
Dinglehopp3r z7A. EastTN
William R. Smith
Does anyone know how this compares to Maman Cochet...
titian1 10b
Proliferated roses and the fashion runway
Lots of fashions featuring red (HT) roses by Dolce...
stillanntn6b
Any ID ideas on this old Sonoma Mission rose?
This rose is a low bush (to 80 cm) growing under a...
dkelch
Tess of the d'Ubervilles
I have bragged on Tess on several posts but never could...
alameda/zone 8
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™