Duo pear tree: ‘Conference‘ + ‘Bonne Louise‘ - Hardy plantTwo types of pear on one tree? That's something we'll never tire of. The duo pear tree in a nursery pot consists of the Conference and Bonne Louise. The Conference is a tasty, sweet pear while the Bonne Louise has a gently tart flavour and soft flesh, making it a unique duo. We plant the self pollinating pear tree out in the garden. Alternatively, it can be planted in a large pot on a patio, roof terrace or balcony. The fruit tree blossoms in spring.