Chamaecyparis pisifera 'Boulevard'
|Layers per DC||6|
|Number per DC||630|
|Decrease||min. 1 DC|
|Barcode||8 716 137 000 395|
In the summer, Chamaecyparis pisifera 'Boulevard' has silver-blue or even intense blue foliage. In the winter the needles are blue-grey, though they often have a purple tint. 'Boulevard' is most beautifully coloured when planted in fertile, moist, well drained soil with low lime content. The cultivar does not get its distinguishing tint on dry and lime-rich soil. The common steel-blue colour is best achieved in shaded areas. 'Boulevard' has soft foliage thanks to its curved needles. The dense needles give 'Boulevard' a quite frizzy appearance. Pruning keeps the dense, cone-shaped conifer small but with enough room it can grow several metres tall.
'Boulevard' is a descendant of the 'Squarrosa' cultivar. A descendant is a naturally occurring variety, such as for example the remarkably coloured 'Boulevard'. The difference in colour between 'Boulevard' and 'Squarrosa' is in fact not caused by a change in the ancestral planting. A descendant can therefore only be maintained by using cuttings or other forms of vegetative propagation. 'Boulevard' was brought on to the market in 1934 by Boulevard Nurseries in Newport, America. Experts were surprised at the time by the conifer's great popularity.
The authoritative Royal Horticultural Society (RHS, London) granted the conifer with an ‘Award of Garden Merit’ in 1993.
Kelly, J. en J. Hillier, 1995. The Hillier gardener’s guide to trees & shrubs.
Ouden, P. den en K. Boom, 1965. Manual of cultivated conifers. Hardy in the cold and warm-temperate zone. Welch, H.J., 1991. The conifer manual.