Remove the flowers as they fade to extend the blooming period. The stalks become long and weak and tend to break in windy or rainy weather. Dwarf varieties do not have this problem. Winter protection is suggested. Tickseed will self seed and become a weed.
Propagation is by division, seed or cuttings.
Basal cuttings may be used and division is done in autumn or spring. The seed germinates in 5 to 10 days at temperatures between 70 and 75 degrees. The plant blooms the first year from seed. Walters Gardens 1997, Bailey Nurseries 1997, Thompson and Morgan 1997, White Flower Farm 1997, Lake County Nursery 1997, Wayside Gardens 1996, Ray Wiegand's Nursery 1997. This information is for educational purposes only.