See: Conservation in the United Kingdom, List of gardens, List of botanical gardens
Derbyshire
Devon
Kent
Norfolk
Yorkshire
... by US patents 3,726,146 (1973) and 5,353,655 (1994) by L.A. Mishler and US patent 5,800,311 (1998) by P.S.Chuang. External links www.gyrotwister.de ...