Poppy Mallow or Wine-Cups or Low Poppy Mallow or Buffalo Rose or Purple Poppy Mallow MALVACEAE:
A drought tolerant perennial with sprawling trailing stems from a carrot-like tuber. The dark purple-red or wine-colored flowers are almost 2 inches across and produced in good numbers. The cup shaped, poppy-like flowers, give the plants their common names. The flowers close each evening and after each flower is pollinated remain closed. Plant grows 12-16 inches tall and a few feet wide. In very hot climates plants will go dormant in mid summer and begin to grow again when it cools later in the year. Grow in full sun in gravelly or sandy soils that are well drained, will not survive long in cool wet soils during winter.
Zones 7-9 for the Texas forms and zones 4-9 for plants from the norther parts of its range (into Nebraska - North Dakota and southern Minnesota). This species is native from Texas and the south central to central western United States and resents root disturbance and should be planted where it will live out its life. Plant out as soon as possible when plants are still small. Of the eight or so species of Callirhoe, the above - is the most commonly grown in dry gardens for its showy flowers from June into August. Germination in three to five weeks at 70F. Plants will bloom the same year sown from an early spring sowing.
Germination starts in 3 and can be spread out over the next 12 weeks at 70F.Plant seedlings as soon as possible into their permanent spot. Plants hate root disturbance. Or use deep plugs. Slow to germinate so do not discard pots or trays but overwinter for more germination the next year.