Hydrangea 'Limelight': Hydrangea 'Limelight' seen here growing in full sun has been a great performer over the last three growing seasons. The hardy shrub is a fast grower, attracts bees and has even been host to a hungry hummingbird.Hydrangea 'Limelight': Hydrangea 'Limelight' seen here growing in full sun has been a great performer over the last three growing seasons. The hardy shrub is a fast grower, attracts bees and has even been host to a hungry hummingbird.