Our gardens are full of them at this time of year, but the Tulip actually originates in Central Asia. These species Tulips are varied in height, colour, foliage and the ease with which we can grow them at home and so this week on Talking Dirty, Cambridge University Botanic Garden - who hold the National Collection of Species Tulips - are along to share some of their favourites and recommendations for which to grow, and how. Plus stories of their latest adventures in Kyrgyzstan where they've been finding and protecting new varieties. So join Alan Gray, Thordis and Simon Wallis and Kathryn Bray of the Botanics for a tantalising tour of their collection! PLANT LIST Tulipa sprengeri Tulipa tschimghanica Tulipa toktogulica Tulipa greigii Tulipa cretica Tulipa 'Negrita' Tulip bakerii 'Lilac Wonder' Euphorbia characias subsp. wulfenii Tulipa acuminata syn. Tulipa cornuta Tulipa montana Tulipa heweri Tulipa biflora Tulipa turkestanica Tulipa regelii Tulipa tarda Tulipa saxatilis Tulipa linifolia Tulipa undulatifolia syn Tulipa eichleri Tulipa clusiana Tulipa clusiana 'Peppermint Stick' Tulip clusiana var. chrysantha Tulipa aucheriana Tulipa sylvestris Tulipa orphanidea Tulipa kaufmanniana Tulipa fosteriana Tulipa praestans 'Shogun' Tulipa 'Apeldoorn' Tulipa 'Ballerina' Tulipa 'Heart's Delight' Trollius lilacinus Iris acutiloba Tulipa clusiana 'Lady Jane'