1st outdoor grow

Hello Everyone, Hopefully i can share some pictures with you to get your opinion. So my whole grow has been done outside in the UK and my Haze Berry plant has grown absolutely huge! I haven't been doing much feeding unfortunately, Just some tomato feed into the water now and again. I will share my progress once i take some pictures. There has been some severe discoloration within the leaves, Most of them have turned yellow. Does anyone know if this is bad or normal for an outdoor grow?# Edit, Just added more photos, taken a day apart. enjoy!