Expand your geranium horizons with the cool-season member of the family: Martha Washington geranium (Pelargonium x domesticum). Also known as regal geraniums, this group of geraniums features richly colored blooms with petals that resemble velvet. Petals have a lovely ruffled effect that enhances the plants’ luxurious feel.
Martha Washington geraniums prefer fertile, well-drained soil. In landscape beds, amend soil with plenty of organic matter prior to planting. In containers, use a commercial soil-less mix developed for use in planters. These mixes provide the right drainage for plants in a container to thrive. Martha Washington geraniums are susceptible to root rot, so avoid overwatering plants or tucking them into heavy clay soils in planting beds.