Evolvulus 'Blue Daze' is lovely in baskets and pots, where the unfurling true-blue flowers shine against the softly felted gray-green leaves. Evolvulus belongs to the morning glory family; the flowers fade by day's end and are replaced the following day with fresh blooms. Pinch when planting to encourage a branching habit and more flowers, trim if needed midsummer, and apply a balanced fertilizer for new growth and flowering. Bring indoors in fall, if desired, to winter on a warm windowsill.