Convallaria (Lily-of-the-Valley)Pronunciation: kon-va-lair'ee-uh Delicate, pendant flowers of Lily-of-the-Valley line up along gracefully arching stems in mid-spring. The white or pink blooms are small and waxy, with a cherished fragrance that is irresistible; if you pull up gently on the stems, you will have lovely, long flower spikes to enjoy in a vase, preferably at nose level. Easily grown, these small plants will take a couple of years to establish and may not flower the first year. But the