Lo & Behold Blue Chip - Butterfly Bush - Buddleia - Proven Winners - 4" Pot Lo & Behold 'Blue Chip' Butterfly Bush Buddleia x 'Blue Chip' pp#19991; cbr#3602 Hardy Zones: 5-9. Mature Height: 24-36" Color of Bloom: Blue-Purple. Months of Bloom: Summer-Early Fall Prefers full sun Immediate shipping. Size shipped: 4" pots