Suspect you know, Mike, but monkshood is very poisonous.
Yesterday.
Things out from under and behind the taller perennials of summer.
Athyrium 'Ghost'
Dryopteris erthrosora 'Radiance'
Heuchera 'Mega Caramel'
Heucherella 'Brass Lantern'
Brunnera 'Silver Heart'
Pulmonaria 'Silver Bouquet'
Helleborus x ballardiae HGC 'Merlin'
Helleborus WJ 'Berry Swirl'