Photo by Melody

Dianthus: Dianthus carthusianorum

Communities > Forums > Dianthus
Forum: DianthusReplies: 6, Views: 136
Add to Bookmarks
Nutley, NJ
(Zone 6b)

May 16, 2011
6:54 PM

Post #8568067

Start Update 2011-11-07
After carful consideration I have decided that this Dianthus canít be Dianthus carthusianorum because it doesnít produce seeds as it is pollen sterile. At this time I donít know if this is a mutation or a hybrid, but it have been around for a long time. I am now growing Dianthus carthusianorum from seeds and will be posting about it on this thread. Next spring I hope to compare the two forms of Dianthus side by side.
End Update 2011-11-07

I have a Dianthus which has been in my family for a minimum of 70 years in the New York City region, which many be Dianthus carthusianorum. Last year I obtained a specimen from my cousin. Using repeated layering of each new shoot, the Dianthus quickly spread to fill a large pot. The Dianthus was overwintered in the pot with no protection except for several feet of snow which covered it for several months.

Height: 15 in. (38 cm)
Flower: 1.0 in. (2.5 cm), pinkish-blue color
Scent: Extremely Fragrant.
Calyxes: Dark purple color with several calyxes in each cluster.
Leaves: Blue/Green color.
Steams: Blue/Green color with purple band about the stem at the base of each leaf node.

While none of the Dianthus, which was reviewed, was a perfect match, in terms of size Dianthus carthusianorum is the best choice.

PlantFiles: Dianthus carthusianorum.
Height: 12-18 in. (30-45 cm)

Dianthus nitidus was my second choice but it was a much smaller plant although it did have some of the features on my Dianthus not found in Dianthus carthusianorum.

PlantFiles: Dianthus nitidus.
Height: 6-12 in. (15-30 cm)

Attached is a photograph of the Dianthus take Sunday May 15, 2011. The Dianthus first bloomed a week earlier on Motherís Day Sunday May 8, 2011. More flowers open each day and none have as yet closed. The Dianthus has full Southern exposure and receives sunlight as long as the Sun is visible. The fragrance given off by this Dianthus is delightful and can be smelled from over 10 feet distance.


This message was edited Dec 7, 2011 6:11 PM

Thumbnail by Michael_Ronayne
Click the image for an enlarged view.

Nutley, NJ
(Zone 6b)

May 16, 2011
6:58 PM

Post #8568072

Here is a close-up picture of the 1 inch flowers and calyxes taken on May 15, 2011. The purple color of the calyxes enhances the color of the flowers.


Thumbnail by Michael_Ronayne
Click the image for an enlarged view.

Nutley, NJ
(Zone 6b)

May 16, 2011
7:03 PM

Post #8568080

I have only observed two potential pollinators. The wasp like insect show in the attached photograph taken on May 15, 2011 and a common house fly which did appear to be too interested in the flowers. It is too early for butterflies and I didnít see any bees.


This message was edited May 16, 2011 9:06 PM

Thumbnail by Michael_Ronayne
Click the image for an enlarged view.

Nutley, NJ
(Zone 6b)

June 27, 2011
5:07 AM

Post #8657116

The past weekend I decided it was time to harvest the seeds from what appeared to mature seed pods of my Dianthus carthusianorum. As I started opening each pod I discovered that they contained no seeds. I then harvested all the seed pods and found they were all devoid of seeds.

There were still a few flowers on the Dianthus and when I inspected them I found that they contained no stamen. I then inspected that close-up picture of the insect pollinator which I posted above and realized that I had overlooked the obvious; my cultivar of Dianthus carthusianorum is seedless because there is no pollen production. This explains the long bloom-time I had observed and why this Dianthus has been so stable over the last 70 years. This Dianthus bloomed so early there no other nearby Dianthus which could have served as a pollen source. If my identification of Dianthus carthusianorum is correct, this Dianthus must be a cultivar and not a species as its survival in the wild would have been difficult.

This Dianthus continues to produce an occasional flower and I have Dianthus amurensis (Siberian Blues) and Dianthus caryophyllus (Carnations) which are in flower and could be a pollen source. It would be interesting to see if any hybrid seeds can be produced. I would like to locate a Dianthus caryophyllus which are grown from seeds and compare the two cultivars.

I have posted before on pollen-sterile seedless Carnations and why they are of value in the cut flower trade. Has anyone had any experience with other lines of pollen-sterile seedless Dianthus?

Sierra Foothills, CA
(Zone 8a)

February 20, 2014
8:35 PM

Post #9773460

Have you seen Dianthus 'Bath's Pink'? It is pretty close.
Nutley, NJ
(Zone 6b)

October 6, 2014
8:14 PM

Post #9954241

evelyn_inthegarden wrote:Have you seen Dianthus 'Bath's Pink'? It is pretty close.

Thanks for the tip about Dianthus 'Bath's Pink'. I am about to order Dianthus seeds for next spring and may order a pack of these seeds. I now have a specimen of wild Dianthus carthusianorum and it is very different from my Dianthus mystery plant. It will be interesting to compare the specimenís side-by-side.
Calgary, AB
(Zone 3b)

October 17, 2014
6:48 PM

Post #9960314

Your plant is definitely not Dianthus carthusianorum, not because it doesn't produce seed, but because it's characteristics don't match it. You can see many photos of the real thing simply by doing a google search and selecting "Images". D. carthusianorum has multiple flowers in each inflorescence, among other differences.

Your plant appears to be Dianthus gratianopolitanus, which is very commonly available:

You cannot post until you register, login and subscribe.

Other Dianthus Threads you might be interested in:

SubjectThread StarterRepliesLast Post
the Dianthus are Blooming! Weezingreens 20 Aug 25, 2008 2:26 AM
Dividing Dianthus 2zeus 19 Mar 5, 2007 3:08 PM
Dianthus at HD FLStu 13 Apr 18, 2007 10:29 PM
Dainty Dianthus Shirley1md 16 Jun 25, 2007 1:14 AM
Need dianthus for a very sunny bed silverfluter 22 Oct 22, 2010 8:13 PM

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America