Save time & money with our pre-planted troughs Each trough contains Petunia plants, compost, FREE Raingel & feed treatment. Care instructions are included. This Petunia Surfinia Mix comes in hues of red, blue & white & will trail up to 90cm, throughout the Summer until for the first frosts. For your convenience, we have Pre-Planted these plants into a 40cm Trough. All you need to do is unpack, water & place somewhere, where you can enjoy its loveliness every day.