Coreopsis grandiflora 'Sun Drops' is another nice compact form with semi-double to double bright yellow flowers, suitable for bedding and pot use, first year flowering. Grows about 12 inches tall. Starts flowering in early summer and with regular deadheading can flower to late summer. A good choice for the front of the border to add some bright color, best in full sun in soils that are on the dry side. Best effect when used in groups of five or more plants each spaced about 10 inches apart.