Showy Four O'clockor Colorado Four O'clock (mee-RAH-bi-lis: mul-TE-flora) Nyctaginaceae:
Plants grow 2 feet (2 ft = 61 cm) tall with a 4 feet (4 ft = 1.22 m) spread. Plants are tap rooted with blue-green tinted, leathery leaves. Purple colored, attractive petunia-like flowers in summer that start to bloom in the late afternoon and are open throughout the night. . The flowers open in middle of the day and fade in the morning. A low water perennial with are large seeds that are easy to sow. Very drought tolerant once established.
Cover seeds with soil medium 1/4 inch and use 65-70F with germination in 1 to 4 weeks. Best to sow in place of growth when the soil is still cool or use deep cell plugs, seedlings resent root disturbance. Soak seeds in hot water for 2 days before sowing, plant out were you want them to grow right away -- they do not like root disturbance. Germination on this lot is about 50 percent.