Supplied as: 5-10cm plug plants (approx.) in planting bags. Plants & flowers: Get five or 10 petunia Back to Black' plants. Foliage: Produces gorgeous velvety blooms in a purple-black shade. Max height & spread: Reaches up to 30cm in height. Hardy: Enjoy a weather resistant and versatile variety. Ideal for: Bedding displays, borders, baskets and containers. Petunia 'back To Black' Plant | Living Social