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Hardiness: USDA Zone 2a: to -45.5 °C (-50 °F) USDA Zone 2b: to -42.7 °C (-45 °F) USDA Zone 3a: to -39.9 °C (-40 °F) USDA Zone 3b: to -37.2 °C (-35 °F) USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) 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)
On May 30, 2010, gary1173 from Sugar Land, TX wrote:
I planted one of these last year, assuming I would not get blooms the first year. Surprisingly, it was beautiful, with several 8 feet tall stems, covered with double pink blooms which resemble carnations. The original plant bloomed again this year, although not quite as vigorously. Last year, after the blooms faded, I harvested seeds to replant. Those plants are currently about 3 feet tall (May in Houston), not sure if I will get blooms this year. Both last year and this year, some of the leaves of my hollyhocks got covered with some sort of pest or disease -- small brown spots -- but it doesn't seem to harm the overall health of the plant. A great addtion to my garden.