If you love the brilliant, jaunty look of coreopsis and want to have them flowering in your landscape earlier, plant Rising Sun. This is purported to be the earliest blooming of the whole group and since it continues to blossom throughout the season, you'll get more weeks of gold and wine beauty with this cultivar. Recipient of the 2005 Fleuroselect Gold Metal, given for breeding that clearly supersedes exiting varieties. Deer resistant, drought tolerant and attractive to butterflies. Mixes well with daylilies, crocosmia and salvia.
For planting info see the "Coreopsis Guide" link below.