'BLUE DIAMOND' SPRUCE (Picea pungens 'Blue Diamond'): This new variety originated in Deurne, The Netherlands in 1990 from a hybridization between the female parent, Picea pungens 'Glauca' (unpatented) and the male parent, an unknown Picea pungens. Regular pyramidal shape; intense blue-coloured foliage; grown from cuttings. Height: 66 cm is reached after 6 years, 125 cm is reached after 12 years. Width: 56 cm in 6 years, 90 cm in 12 years; Growth rate: 15 cm per year. - Maréchal
1. Juniperus communis 'Stricta' 6. Blue spruce 'Maigold' 2. The rocky juniper 'Blue Arrow' 7. Blue spruce 'Glauca Compacta' 3. Deren white 'Aurea' 8. Yew ‘Washingtonii’ 4. The European larch 'Pendula' 9. The average juniper 'Gold Star' 5. Rough fir 'Compacta' 10. Oregano 'Thumbles'