Our front garden is about 7m x 3.5m and faces west. By midday, the sun has come around our row of houses and it begins to get light. The area in front of the bay window can then be in the sun for the remainder of the day. Under the hedge is in the shade at all times and the border infront of the railings gets part sun briefly at midday and then when the sun filters through the railings. Can anyone recommend plants for these borders? My asters, dahlias and sea hollies have barely grown at all even though we’ve had blistering heat for weeks.