Alyssum, white, dwarf for borders; six inches; blooms all summer if not allowed to go to seed.
Balsam, Camellia-flowered, pale pink, dark red, white; two to three feet; July and August.
Calendula (Pot Marigold), all shades of yellow; mid-July until killed by frost.
Calliopsis (Coreopsis), yellow with red or brown center; two feet; mid-July, until killed by frost.
Candytuft, red, white, purple, Empress variety white the best, fine for edging; six inches; blooms continually if not allowed to go to seed.
Centaurea (Cornflower), all shades of blue; three feet; blooms three months if kept cut.
Cockscomb, crimson and scarlet; two to three feet; August and September.
Cosmos, white, pink, crimson; three to five feet; from the fifteenth of July until killed by frost.
Eschscholtzia, yellow Poppies; one foot; blooms all summer.