Perennial growing height is important. Taller plants for the back of the border include Lillies, Acanthus, Delphiniums, Lavatera (Tree Mallow), Echinops (Globe Thistle) and Red Hot Pokers. Hollyhocks and Foxgloves give a real cottage garden look to your b
Shape ideas for my formal herb garden. Maybe not herbs, but I really like the idea of this kind of structure in the back yard. Pea gravel separates the shaped beds, nice. Choose plants that will thrive in my unfortunate climate.
use vertical railway sleepers to create a curved wall raised beds - curved walls may work with overall design better divide between Mediterranean garden and English garden rather than original oblong med wall bed idea