Maclura pomifera

Osage orange. A tree up to 18m (60 ft) high, bearing large pale-yellow fruits which are not edible – in fact they are insecticidal, and the oil from them can be used as a lubricant. Good in hedges and windbreaks. Dyes, rubber and medicinal products can all be obtained from this species. Likes a sunny, well-drained soil; dioecious. Growth 6m (20 ft) in 10 years; hardy to -23°C.