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Hardiness: USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F) USDA Zone 11: above 4.5 °C (40 °F)
Other details: Flowers are fragrant Average Water Needs; Water regularly; do not overwater Requires consistently moist soil; do not let dry out between waterings
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Propagation Methods: By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting: Allow seedheads to dry on plants; remove and collect seeds
We discovered this plant growing on our property in Central Texas last October. It bloomed from October until frost. I am not convinced that this plant needs constant moisture, as we have been going through one of the worst droughts in recorded history for this area, and have experienced record heat. My records show we received our last spring rain June 24, 2006 (monthly total 3.70). The next measureable rain event did not happen until Sept 4, 2006 (.06"). The monthly total for Sept, 2006 was 5.80. Maybe the plant is dormant in the summer and begins to grow with the fall rains?
One member has or wants this plant for trade.
