Fountain Grass Green

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Fountain Grass Green is an ornamental grass known for its narrow, arching green leaves and soft, feathery flower plumes. Its clumping growth creates a rounded shape that provides foliage texture and seasonal flower spikes. In Southwest Florida, container growing is a more controlled option for managing varieties that spread through seed. Green Fountain Grass is commonly associated with Cenchrus setaceus, formerly known as Pennisetum setaceum. It typically grows 3–5 feet tall and 3–5 feet wide, including its flowering plumes. Its narrow leaves arch outward from the center, forming a dense, rounded clump.​

​This grass grows best in full sun and prefers well-drained soil. It adapts to sandy landscape conditions and performs well during hot weather. Plants receiving insufficient sunlight may develop weaker growth and fewer flower plumes.​

​For container planting, select a large planter with drainage holes and enough room for the mature clump. Allow approximately 3–5 feet of space for the arching foliage. Containers can be positioned on sunny patios or paved courtyards where surrounding seedlings can be monitored.​

​Newly planted Fountain Grass Green requires regular watering while its roots become established. Mature plants tolerate moderate dry periods but benefit from supplemental irrigation during extended drought. Avoid soil that remains saturated after heavy rainfall.​

​Fountain Grass Green produces soft, feathery flower spikes during warm weather. These plumes eventually develop seeds that can spread into surrounding planting areas. Removing flower heads before seeds mature helps reduce unwanted seedlings.​

​This Grass Green generally requires little fertilizer or routine maintenance. Older foliage can be trimmed before new spring growth begins. The commonly sold green species, Cenchrus setaceus, is classified as a Category II invasive plant by the Florida Invasive Species Council, so its use in Southwest Florida landscapes requires caution.​

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Why You'll Love It​

Arching Green Foliage: Produces narrow green leaves that form a rounded clump with a naturally arching growth habit.​

Soft Flower Plumes: Develops feathery flower spikes that extend above the foliage during the warm growing season.​

Fine Foliage Texture: Narrow leaves provide contrast when displayed beside broad-leaved tropical shrubs and flowering plants.​

Container Growing: Can be maintained in large outdoor planters where flower heads and unwanted seedlings are easier to manage.​

Sun Requirements: Performs best in full sun, which supports dense growth and seasonal flower production.​

Water Needs: Requires regular watering during establishment and supplemental irrigation during extended dry periods once mature.​

Mature Size: Approximately 3–5 feet tall and 3–5 feet wide, depending on the variety and growing conditions.​

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