Ruta graveolens
Attractive, powder blue foliage. Yellow flowers. June. 2 – 3′ tall. Semi-evergreen subshrub. Full sun, well-drained soil. Drought tolerant. Deer resistant. Attracts butterflies. Prune back in early spring. Tough and easy care plant. Will self sow – remove seed pods if desired to prevent. May cause dermatitis. Zone 4.
Glover Perennials