Seeds for catnip, the well-known herb that cats love.  Relatively easy to grow, from part shade to full sun, moderate to light water needs and quite light soil.  Dry the foliage at the end of the season for your feline friends or for herbal teas, or grow in an out-of-the-way corner for cat al fresco enjoyment.  Catnip can become a sprawling plant, and can grow to three feet tall.  Tiny white to pale pink flowers in late summer and into fall.  These flowers attract pollinating insects, such as bumblebees.