Height: 6-12 in. (15-30 cm) 12-18 in. (30-45 cm) 18-24 in. (45-60 cm)
Spacing: 18-24 in. (45-60 cm)
Hardiness: USDA Zone 3a: to -39.9 °C (-40 °F) USDA Zone 3b: to -37.2 °C (-35 °F) USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F)
Sun Exposure: Sun to Partial Shade
Bloom Color: Purple
Bloom Time: Mid Summer Late Summer/Early Fall
Other details: Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) 7.9 to 8.5 (alkaline)
The flower is beautiful, I'll give it this, BUT I garden for a living and I am constantly trying to get this plant under control in almost every person's garden I work in. I started it in mine, but decided I would rip it out before it became a home front battle. Even with just one year's growth from a small start, it took a year to get it eliminated. Plant with caution.
On Oct 26, 2010, ms_greenjeans from Hopkins, MN (Zone 4a) wrote:
'Joan Elliott' is beautiful when in bloom, and it pops out fairly early just when I need something. However, I am not crazy about the foliage, so I planted it where other things will come up around it later in the season. I like the color, shape and size of the flowers, and it is a low-maintenance, trouble-free plant. It does tend to spread, so I divide it every couple of years.
On May 12, 2006, DrDoolotz from Urbandale, IA (Zone 5a) wrote:
This is a very pretty campanula in a deep purple color. The tag says it flowers "late spring thru early summer" which is different to what PlantFiles says. I am in zone 5a and it is really the only thing I have in flower yet (early May) besides spring bulbs and pinks. So, I would not even say it was late spring. It is growing strongly and is not spreading beyond its bounds. A very nice plant.
This plant has been said to grow in the following regions:
Champaign, Illinois Urbandale, Iowa Woodlawn, Kentucky Hopkins, Minnesota Berlin, New Hampshire Belfield, North Dakota Maywood Park, Oregon East Norriton, Pennsylvania Knoxville, Tennessee Mill Plain, Washington