Height: 6-12 in. (15-30 cm) 12-18 in. (30-45 cm) 18-24 in. (45-60 cm)
Spacing: 9-12 in. (22-30 cm)
Hardiness: 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)
Other details: This plant is attractive to bees, butterflies and/or birds Drought-tolerant; suitable for xeriscaping Average Water Needs; Water regularly; do not overwater This plant may be considered a protected species; check before digging or gathering seeds
On Jun 16, 2012, lallen08 from Tampa, FL (Zone 9a) wrote:
I planted a bed of pencil flower last fall. Doing great in part shade, nice form, pretty little flowers in the morning, looks great in mass planting. I'm going to plant a bed down on our hot, dry right of way and see how they do.