caraway
Carum carvi

Hardiness: Zones 3 to 9
Plant type: Herbaceous perennial
Height: 1- 2'
Spread: 10-12"
Sun: Full sun to part shade
Water: Medium
Bloom time: May to July
Bloom color: White, pink
Soil: Prefers well-draining, organically rich loams, slightly sandy soils. 

Notes: Caraway flowers attract parasitic wasps to the garden, which prey on aphids

More information on this plant here.