Site Characteristics

Sunlight:

• full sun
• part shade

Tolerates full sun only if kept well-watered.

Soil conditions:

• requires well-drained soil
• requires high fertility

Prefers moist but well-drained, slightly alkaline to neutral soil.

Hardiness zones:

• 3 to 8

Plant Traits

Lifecycle: perennial

Ease-of-care: moderately difficult

Height: 2 to 3 feet

Spread: 1 to 2 feet

Bloom time:

• early summer
• mid-summer

Flower color:

• blue
• violet
• white

Foliage color: medium green

Foliage texture: medium

Shape: cushion, mound or clump

Shape in flower: flower stalks with upright spikes

Blooms borne along slender, upright stems.

Special Considerations

Special characteristics:

• non-aggressive
• non-invasive
• not native to North America - Native to Europe and Asia Minor
• evergreen

Special uses:

• cut flowers

Growing Information

Varieties