Related Clues:

• Columbia, e.g
• Poison ___ (Batman villain)
• Creeping greenery
• Climber number four on Yorkshire's peak
• 'The Holly and the ___' (Christmas song)
• Plant that can climb walls
• Poison ___ (plant to avoid)
• Plant that covers garden walls
• Poison ___ (dangerous plant)
• It grows up walls
• Plant that grows up walls
• Plant that can climb the walls
• Wall greenery
• Wrigley Field wall covering
• It covers grounds and walls rapidly