Looking for some help in id'ing a plant.

3 years ago

Hi all, I grow 3 different kinds of Perennial Bachelor's buttons . Centaurea montana , mauve in color , Centaurea dealbata pink in color ( very invasive ) and a second type of pink perennial bachelor's button. I am looking for an id on the latter very well behaved plant . Can anyone help . It looks very similar to Dealbata but definitely isn't . Hope someone is able to id for me .

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floral_uk z.8/9 SW UK

3 years ago

Can you post a picture?

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peren.all Zone 5a Ontario Canada
3 years ago
last modified: 3 years ago
Hi Heather! A pic would certainly help but I had Centaurea dealbata 'John Coutts'. It is apparently better behaved. If I don't get C. d. deadheaded it seeds about quite a bit.
signet_gw(6b) thanked peren.all Zone 5a Ontario Canada
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signet_gw(6b)
Original Author
3 years ago
last modified: 3 years ago
Hi Floral _ uk and Laurie , ok here are a couple of pics . The first is Dealbata ( like I said very invasive ) crowding out everything in its path .

Now this pic below is the other pink one up close . leaves are virtually identical

but plant habit definitely isn't .

This one remains in a nice tidy clump . Cant share images of flowers as they are not in bloom presently (sorry) but both are same pink color but this plant is a very well behaved version

This is one of the seedlings of the well behaved clump . Its root system is completely different from Dealbata . The Dealbata I have spreads via root (if indeed it is really Dealbata ) this one doesn't This one produces seed . One thing does come to mind about the flower of the one I am trying to id . It has a white center with pink periferal petals
signet_gw(6b)
Original Author
3 years ago
last modified: 3 years ago
I had no idea there were so many varieties of Perennial Bachelor's button . I think I may have stumbled across what I have here ( I have been searching for a long time ) I think it may be Persian Cornflower

Psephellus dealbatus
- Name also: Whitewash Cornflower
- Latin synonym: Centaurea dealbata
- Family: Daisy Family – Compositae, subfamily Carduoideae
  (formerly Aster Family – Asteraceae)
- Growing form: Perennial herb. Subterranean runners.
- Height: 60–100 cm (25–40 in.).
- Flower: Flowers 3–5 cm (1.2–2 in.) wide, single flower-like capitula surrounded by involucral bracts. Capitulum’s ray-florets rose–bluish red, obliquely funnel-shaped, lobed at tip, neuter; disk florets red, tubular. Stamens 5. Gynoecium composed of 2 fused carpels. Involucre spherical, involucral bracts overlap in many rows, with elliptic, yellow-brown appendage. Capitula solitary, terminating stem and branches.
- Leaves: Alternate, lower stalked, upper usually stalkless. Blade pinnately lobed, underside light, tomentose, lobes wide, apex
https://www.luontoportti.com/suomi/images/10527.jpg However they call this Centaurea dealbata so if this is dealbata what is the other one I thought was dealbata but perhaps isn't UGH! The one that spreads via spreading roots ?
peren.all Zone 5a Ontario Canada
3 years ago
Heather did you check out Centaurea dealbata 'John Coutts'? Has the well behaved one flowered for you?
signet_gw(6b) thanked peren.all Zone 5a Ontario Canada
signet_gw(6b)
Original Author
3 years ago
Hi Laurie while doing some searching ( a lot) last night I tried to find info on your John Coutts to see if that is what I have . According to many many sites , John Coutts is not a Dealbata but a Centaurea Hypoleuca !!!?????https://www.perennials.com/plants/centaurea-hypoleuca-john-coutts.html . This gets more and more convoluted as I go .