Other Common Names: Carpatic Bluebell. Duration: Perennial. Bloom Time: Summer. Height: 8” to 12”. Spacing: 12” to 15”. Light: Full Sun to Part Shade. Soil Moisture: Medium. USDA Zone: 3a-8b. Germination: No pre-treatment needed. Sow seeds on soil surface at 70F and water. This wildflower is a cousin of the native Campanulas that grace the wilds of the US. Only about 9” tall, this little gem blooms non-stop all summer. The flowers sometimes open so wide, that they almost turn inside-out! A native of the Carpathian Mountains, these little wildflowers are very hardy, and can withstand harsh winter conditions. It is a sure winner along a stone path, or in a small rock garden.