At first glance, you might not think much of this unique little herb - sure, it's pretty enough, with lacy blue foliage and chartreuse blooms - but it has a little secret. It's a pollinator powerhouse, serving as a first-choice food source for the caterpillars of many species of swallowtail butterflies. And because the caterpillars love it, you'll frequently spot butterflies laying eggs on the plant. Cool blue foliage ensures long-lasting color and interest in the garden. Requires good drainage year-round, especially in the colder parts of its hardiness range.
Plant size: 1-1.5'/.3-.5m tall and wide
Light: full sun (6+ hrs/day)
Hardiness: USDA zone 5-8 (Find your hardiness zone)
Pollinator value: attracts swallowtail butterflies and their larvae
Notable features: foliage interest, compact.
Pot size: one quart
Plant name: Ruta graveolens 'Blue Mound'