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Muhly grasses offer fine foliage textures and stunning flower inflorescences. One cultivar, M. c. 'Regal Mist' has become the choice for residential gardens and commercial landscape due to its reliable yearly flowering performance. This cultivar has foliage that matures around 2 ft. tall and 4 ft. wide and produces a profusion of pink-rose flower panicles growing above the foliage in late summer and fading to wheat color by fall.

Regal Mist pink muhly is considered by many people to be the most beautiful flowering grass in our gardens. An easy to grow plant that loves sun, many types of soil, and low amounts of supplemental water. It works well in mass and individual plantings, in containers, parkways and with other flowering perennials.

Water Needs

Pink muhly grass is highly adapted to sunny garden locations on well drained soils and with low amounts of supplemental water during summer. The chart shown below provides a recommended baseline guide to the monthly irrigation schedule and volume of supplemental water needed to maintain healthy growth throughout the average year. It should be noted there are several months indicated by an asterisk (*) when winter rains can provide sufficient moisture and irrigation is not needed. The high and low range of moisture indicates it can grow with varying amounts of water; more water in the spring will result in a longer flowering season.

Irrigation Schedule and Graph

Low Water Use Plants

Irrigation Schedule 2

  Jan* Feb* Mar* Apr May Jun Jul Aug Sep Oct Nov* Dec*
Runs per Month 0x to 2x 0x to 2x 0x to 2x 1x to 2x 1x to 2x 1x to 2x 1x to 2x 1x to 2x 1x to 2x 1x to 2x 0x to 2x 0x to 2x
Inches per Run 1" 1" 1" 1" 1" 1" 1" 1" 1" 1" 1" 1"
Inches per Month 0" to 2" 0" to 2" 0" to 2" 1" to 2" 1" to 2" 1" to 2" 1" to 2" 1" to 2" 1" to 2" 1" to 2" 0" to 2" 0" to 2"

Range of supplemental summer water: 7"-14"
Range of supplemental winter water: 0"-10"

  Jan* Feb* Mar* Apr May Jun Jul Aug Sep Oct Nov* Dec*
For more information on how to use this Irrigation Schedule and Graph, follow this link.

For information how to calculate your irrigation system’s schedule and precipitation rate, please follow this link.

Plant Properties

Plant Type: Grass
Foliage Character: Semi-deciduous
Habit: Mounding
Growth Rate: Fast
Height: 2 ft.
Width: 4 ft. (to 5' with flowers)
Water Needs: Low 2
Foliage Color: Light green
Flower Color: Pink
Flower Season: Summer, Fall
Soil Adaptations: Well-draining soil
Exposure Adaptations: Heat, Drought, Aridity, All day sun
Function: Raised planters, Near pools and water features, Mass planting, Foliage accent plant, Flowering accent plant, Container plant, Civic spaces, Borders, Small spaces


In late winter or early spring, just prior to spring growth, cut back hard, to an appx. 6" mound. For multiple plants, this is best done using a manual or powered hedge trimmer. If needed, dried flowers can be cleaned up over the winter with a very light shearing, but it is a warm season growing grass so avoid cutting back significantly during the cool season. If you only have a few plants, old flower stalks can be removed individually with a hand pruner. After the pink flowers fade to tan, the dried flowers continue to look attractive for quite some time. Consider waiting to remove dried flowers until they begin to look unattractive (S).



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