We're bringing back this wonderful old favorite -- simply because it's such a great plant! Large heads of rich, deep purple-blue, upward facing bells are clustered at the top of upright stems for many weeks in early summer. Campanula glomerata 'Superba' spreads vigorously, and soon forms large clumps. In warmer climates, grow in part shade.
Campanulas are a fine group of garden plants in blue or white shades and range in height from very dwarf to 6ft tall. Some bloom for the better part of summer. They need only a moderately rich, well-drained soil and full sun or partial shade. Campanulas are not well suited to the desert Southwest.