(Corydalis curviflora var. rosthornii 'Heronswood Form') Genus:  Corydalis This variety has fragrant, deep blue, cornucopia-shaped flowers carried tightly on red stems above 6-inch tall, blue-green foliage. It is considered one of the best blue forms for color and performance. Care:  Prefers partial shade in moist, well-drained soil. It goes dormant in high temperatures. Propagation:  Sow seed when fresh; germination may be erratic. Divide in fall. Problems:  Downy mildew, rust, aphids, slugs, snails; spider mites indoors.

Overview

Height 6 in. to 12 in. Spread 6 in. to 12 in. Growth Habit Clumps Growth Pace Moderate Grower Light Part Shade Only Moisture Medium Moisture Maintenance Low Characteristics Fragrant Flowers, Showy Flowers, Showy Foliage Bloom Time Early Spring, Early Summer, Late Spring, Spring, Summer Flower Color Blue Uses Beds and Borders, Ground Covers, Naturalizing, Specimen Plant/Focal Point Style Cottage Garden, Woodland Garden Seasonal Interest Spring Interest Type Perennials