The Seven Samurai of Weed Control

Researchers from Cornell University found these perennials to be super weed suppressors. Meet the seven samurai of weed control:

1. 'Emerald Blue' moss phlox
(Phlox subulata)

• Full sun
• Mat-forming habit
• 4 to 6 inches tall; 24 inches wide
• Hardy in Zones 3 through 9
• Good spring and summer coverage; declines slightly in fall
• Lavender-blue flowers in April and May
• Native; evergreen
   

Photo: (cc) Ajari/Flickr