Blue Bunny Hydrangea Shrub - Flowering Shrub - 4" Pot - Proven Winners Blue Bunny Bracted Hydrangea Hydrangea involucrata 'Wim Rutten'PPAF Hardy Zones 6-9, Mature Height: 24-48" Color of Bloom: Blue. Months of Bloom: Summer Prefers sun to part-shade Immediate shipping. Size shipped: 4" pot