Weeping Willows are a beautiful and hardy tree which grow up to 7′ a year.  Our rabbits enjoy a branch of willow daily which is a terrific way to supplement your feed costs and also helps prevent malocclusion. A 5′ Weeping willows costs approximately 80$.  The Rabbitry Center sells 1′-3′ tall saplings for $10-$20. Tap the pic for more info.