For containers that need color into August heat, this scaevola delivers a steady stream of blue-violet flowers on trailing stems. The mounding habit fills a pot or hanging basket with fine texture, and it handles our humid summers without complaint.

Plant it where afternoon shade offers relief, though it will bloom in part sun too. Deadhead spent flowers to keep it tidy, or let it sprawl and cascade—either way, you'll get weeks of reliable color from a single plant.