Plants are usually marketed by florists, garden center and nurseries between Easter and Mother's Day. While the flowers and plants are more showy and spectacular than regular zonal geraniums, they suffer severely when growing conditions are more than 60 degrees F. during the day and less than 55 degrees F. at night.
Plants prefer bright, indirect light and a moist, well-drained soil.
Martha Washington geraniums are best enjoyed for as long as they bloom and then discarded. Copyright 1995 by the Board of Trustees of the University of Illinois. The information provided is for educational purposes only. References to commercial products or trade names do not constitute an endorsement by the University of Illinois and do not imply discrimination against other similar products.