Skin Changing

iris larvae are very advanced.  They are now changing into the 4th instar, in the wild - and camilla larvae are already in the 4th instar. Here's Savernake No 9 skin changing - 

If this mild, dry spring continues iris will be on the wing in early June. However, we've had panics like this before, notably in 2011 - only for the jet stream to jump south in late April / early May, ushering in six to eight weeks of cool wet weather and slowing progress right down.

Watch this space, but you may need to bring your annual Emperoring holiday forward...