When Frances Tophill told colleagues she might end up living in a van after losing out on house bids, veteran gardener Alan Titchmarsh admits he was alarmed.The Love Your Garden star eventually secured a home in Devon, but she hasn’t ditched the van she once joked she could live in.Tophill, 34, from Kent, shot to fame after joining ITV’s Love Your Garden with Titchmarsh, Katie Rushworth and...