Purple Fountain Grass One Gallon Plant Purple fountain grass is a drought-tolerant grass that forms neat clumps of purplish-maroon blades. Topped by rose-red flower spikes summer through fall. Beautiful as landscape specimen or planted in groups. Provides quick annual color in any climate; perennial in warm climates. Full sun. Moderate grower to about 4 feet tall, 2 to 3 feet wide. Semi-evergreen. It is indispensable for dry streambeds and a lovely fluffy accent in dry gardens. Provides wildlife habitat around water holes and ponds, and adds its billowy character to homegrown meadows. Makes a great erosion-control plant on slopes, both cut and fill. Shipped as a potted one gallon plant in its original soil and container. Hardy to USDA zone 8 and all higher zones. Equally at home in big Southwestern ceramic pots or classical Italian terra-cotta on posts and walls, or ganged around entries, steps and gateways.