Eight years in the making, Sky Blue is a compact new cultivar of B. davidii bred specifically for small gardens and containers, however this new smaller option does not compromise flower size and abundance. The 6" fragrant blossoms will attract bees and butterflies galore. Wait until Spring to prune back, leaving 4-5 new buds. Deadhead blooms throughout the summer season to prolong flowering. Provide regular food and water when planted in containers.