Green-fingered gardener Mr Bloom welcomes a team of young helpers, who tend to his plants and produce. In the garden, the Tiddlers help harvest vegetables, giving them a wash to make them look their best for another one of Mr Bloom's prize-winning displays. Inside the Nursery it is the House of Fennel fashion show, run by Joan. But Raymond and Colin get accidentally covered in mud, so the Tiddlers have a race against the clock to clean them up for the show before a special guest arrives.