Looking for suggestions #1
My son just recently bought a house in Trumbull, CT z6 and he has a two areas with conditions where my previous experience is of little help.
Therefore I'm looking to pick up your brains ;-)
I'll make a two different posts describing each location separately.
Very-very steep slope (I'd say 60 degrees or more) of 100'+ in lenght. Width is 12' in its narrowest point and 36'+ in its widest one. Direction of strip is strictly S-N, W is the top, E is the buttom.
Observation points mostly from the E (W side is bound by the street, E side is bound by 2-3' high retaining wall and a driveway).
What is there:
Grove of MATURE (and relatively healthy) spring blooming trees and shrubs.
I have no clue how the previous owners managed to plant and initialy water them on a such steep slope, but here is the list of what is there:
9 Cornus florida,
1 Cornus kousa,
1 Kwanzan cherry,
2 Weeping Yoshino cherry,
25+ different azaleas,
7-8 different mid-size rhododendrons.
Technicaly it's an unobstructed full sun location (from sunrise to sunset). However high and not very dense canopy of above mentioned trees creates a very bright part-sun conditions for the understory plants.
As perennials goes Geranium sanguineum 'Max Frei', Dicentra eximia and Platycodon grandiflorus 'Sentimental Blue' (dwarf balloon flower) absolutely adore such conditions and being let to selfseed created substantial colonies here and there. That's it. No other perennials.
To my surprise not too much weeds either despite the fact that whole slope-bed is not mulched except by natural mulch of the tree's fallen leaves.
No sprinkler or any other means of watering cause closest water bib is about 100' away.
Sorry for the long description, but I was trying to give as much info upfront.
Now is my question:
What kind of perennials I could/should introduce to this bed that a) will like such conditions, b) will bloom in mid and late summer, c) could produce an impact from the distant view d) will be self-sufficient in a term of maintanance, meaning fall and/or spring cleanup would be the most they'll receive?
My fantasy is not going beyond the usual suspects: rudbeckia, echinacea, shasta daisy, monarda, but even with those my experience is limited to my well watered beds, so please help me!