I gotta step in on this one LOL!
Not ALL Hollyhock
are biennial...many can and do live as short lived perennials and some DO bloom from seed
the first year; "Indian Summer" is one that will. The same goes for certain species of Foxglove. The species I keep have been perennial for me for 5 years. I remove all seed
pods long before they have formed mature seed
and dispose of them to prevent re-seeding...so yes, I'm speaking from experience here
They are hardy to zone
3 and do just fine without mulching. In summer I cut back all the flowering stalks down into the foliage for a nice fluch of new leaves and a fall re-bloom.
Also try this trick...I believe you will like it especially in windy areas! To create a HH that is fuller, shorter and more compact with several flowring stems, cut the first flowering stems (before they flower
) down into the foliage. They will bloom later and be more attractive