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Panicum amarum 'Dewey Blue' (Switchgrass)

Panicum amarum 'Dewey Blue'

Switchgrass or beach grass

This smooth, blue tinted grass can grow as tall as 4' and spreads slowly through its rhizome growth forming clumps. It was selected for its glaucous blue color, and graceful fountain habit. The flowers are airy, emerging in the fall, and persisting as a light beige color throughout the winter. Selected and named, by Rick Darke, for the lower Delaware beach town that bears its name. Native along the shores from Louisiana to Connecticut. It is adapted to dry, sterile locations where it plays an important role in stabilizing.

Panicum amarum 'Dewey Blue' LP50 - 50 per flat Availability
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3-4 Feet


2-3 Feet


18 Inches

Bloom Color

USDA Hardiness Zone 2-9

Switchgrass Interesting Notes

This is a low-maintenance landscape plant; however, because of its size and rhizomous growth habit, adequate space is essential. Bitter panicgrass is commonly found on high dunes and plays an important role in dune stabilization.

Panicum amarum 'Dewey Blue' Growing and Maintenance Tips

Grow in full sun average to dry soil with good drainage. Water well on planting and regularly until established. Drought tolerant.

Key Characteristics & Attributes

Deer Resistant
Deer Resistant
Full Sun
Full Sun
Part Sun
Part Sun
Drought Tolerant
Drought Tolerant
Salt Tolerance
Salt Tolerance

Additional Information

Season of Interest (Flowering)
Soil Moisture Needs
Plug Type
Landscape Plug™
Propagation Type
Tissue culture
Grass Type: Warm Season
Erosion Control
Moist Sun
Native to North America
Dry Sun