This grass will reach 6' high and has deciduous, purplish/red leaves with clusters of purple flowers that appear in summer and fall. Rubrum is a warm-season grass. Where temperatures get colder than 20 degrees F, the plants should be treated as annuals. Once the grass turns brown it can either be removed immediately or removed in the spring. Their major growth and flowering happens when the weather is hot. They will usually turn shades of brown for the winter.
