Reticulate Iris - 2015

[Matt T]

I bought some Katherine Hodgkin a few weeks back - I'm assuming the "ink blots" on the standards and falls are signs of virus?

Given the pot is packed is there any point in trying to seperate them out to try and find unvirused one? Can it be done when they are in growth or simply pot them up singly over the summer/ autumn and wait for reflowering?

Yes Mark, the classic sign of virus in KH. It is possible to un-pot, carefully teasing out the root with minimal damage and repot them. I do this with retics in pots for house display then planted out in the garden to grow on singly. They grow away ok. Unfortunately, I suspect that most (all?) KH bulbs may carry the virus, so even if they don't display signs now they might in the future. However, you might achieve a clean stock over time with rigorous roguing out.

[Philip Walker]

Iris 'Blue Note'

[Mark Griffiths]

thanks Matt, looking at it again I'm not sure that any of the flowers are free of blotching but I'll have a proper look later. Pity, it's a nice plant.

[Roma]

New purchases from Dunblane last week
Iris 'Dance On'
Iris 'Vivacious Beginnings' -  Odd name - difficult to say and even harder to spell
Iris winogradowii and Iris winogradowii 'Alba' - not white and I believe it is a hybrid.  It looks as if it has some histrioides blood.

[YT]

Nice hybrids and winogradowii, Roma

Here is  another Iris winogradowii.

[Matt T]

Goodness me. Even your Iris are compact, Tatsuo!

[Yann]

Tatsuo use wheat nanifer, the cupboards are full of Cycocel 

[Steve Garvie]

Iris aff reticulata KMZ 9505 
-I think this may be a form of Iris hyrcana

[Mark Griffiths]

oh that's nice Steve!

[Jacek]

Tatsuo use wheat nanifer, the cupboards are full of Cycocel 

Ok, seriously about nanifier use. Are they anyhow useful in the garden, for ornamentals? I started experimenting last year without any success, i.e. no visible results. The issue to be solved are some floppy garden plants like some tulips or corydalis flexuosa.

I diluted Cycocel 1ml per 1 liter of final solution and sprayed a few times since early spring - no result.

Is there any published experience? Is the active ingredient up took by roots?

[Yann]

Cycocel and other growth regulators are often used in horticulture. chlormequat chloride has no effect on bubs.
The only active ingredient used on bulbous culture is paclobutrazol, also know as Bonzi. It is used on Lilium, Freesia culture.

[David Nicholson]

Will we need a degree in Chemistry to read this thread?

[Yann]

héhé

[udo]

yesterday in garden:
Iris 'Seagreen' , a wonderful cross from Alan McMurtrie
  ''   zagrica, Iran
  ''   histrioides 'Lady Beatrix Stanley' left and Iris histrio right; the dark and late flower is very unusual
      for histrio ( possibly a cross with histrioides? )

[mark smyth]

Sounds like a trick question but what colour is Iris 'White Caucasicus'? Mine is pale blue

The miniature bulbs web site says "reticulata 'White Caucasus' A new Alan McMurtie seedling in sparkling white with a narrow bright yellow crest"