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So the white flowered form should be 'Bowles' Artemis'? In that case mine as pictured may be that since it hasn't flowered last or this year and I don't know which it is and I'm not sure where the other is at present ( ) but I imagine the pink 'Apollo" would be more likely to have the red colour on the leaves. Time will tell me - I hope.
Worth noting that they all travelled well and established half a world away...