Iris chrysographes 'Black Knight'
in the 2018 seed distribution
Sorry, it's now too late to order seed from this distribution.
We have sent out all orders, and hope you enjoy growing the seed.
N.B. Potentially harmful plant
Seed list no
HP: Hardy Perennial
E, white flat fls, yellow crest, fan-like lvs
AT: sow any time
So: soak in warm water for 12 hours
Cd: expose to winter cold (outdoors overwinter or in a refrigerator for 3 months)
H4: -10 to -5°C, Hardy - average winter
Z8: to -11°C