Rue prefer sunny site with good drainage and they almost certainly will thrive with virtually no care. Rue flowers are good candidates for tough sites, and will even grow in gravel. If your garden has heavy or wet soil, consider container culture. Rue is more often grown as an ornamental plant than in its traditional role as an herb. It is frequently used in borders and screens, or to lure butterflies. Rue flowers grow best in full sun, but part shade is also tolerated. Plants will produce fewer flowers in the shade. Good, fast drainage is important for healthy rue plants. Add sand, perlite, or vermiculite to the soil to help drainage. Use raised beds with prepared soil in gardens where heavy clay dominates. Common rue is very drought tolerant and is a good candidate for a xeriscape or rock garden.