Rhs perfect for pollinators attracts wildlife this variety is perfect for attracting bees and other pollinating insects to your garden this summerfrom july until september penstemon red bells will produce an abundance of stunning flower spikes in a rich red shade with a contrasting red throat a cottage garden favourites which is hardy in many uk locations part of the rhs perfect for pollinators list this variety is perfect for attracting bees and other pollinating insects to your garden