lucida [LOO-sih-duh], Mexican marigold or Texas tarragon. Important differences between this plant and the former are: leaves simple, narrow and about 3" long (some turning purple now) vs.

Lemon Gem is one variety of the so-called Signet marigolds (T. tenufolia), which you might grow just for their leaves ... but tiny white ones hardly worth mention. Back to Lemon Gem: Besides ...