Of all the many species of conifer, Brewer's spruce is often considered to be the most beautiful. Also known as the weeping spruce, it is most notable for its thick curtains of drooping foliage which look particularly attractive in the immediate aftermath of rainfall when drops of water glisten on its needle-like leaves.
Its form has most likely developed in this way to cope with its natural habitat in the Siskiyou Mountains of California and Oregon in the United States of America. Growing between 1,000m and 2,700m above sea level, Picea breweriana regularly has to contend with heavy snowfall and the tough, springy branches are perfectly designed to shed any snow without damaging the tree.
This rare tree was discovered by a Californian botanist by the name of William Henry Brewer, who was a professor of agriculture at Yale University. It was introduced to Britain in 1897 and was planted first at Kew before being more widely distributed. It is now one of the most popular garden conifers, not only in Britain but also in Scandinavia.
Like many conifers, it has an upright, pyramidal shape, which as well as looking striking, has the benefit of not taking up too much space. It also grows quite slowly, usually less than 50cm a year and outside of its native habitat tends not to top 15m (50ft), which is less than half of what it can achieve in the wild, and so is less prone to causing neighbourly disputes than some garden evergreens.
The male flowers on Picea breweriana are small and red and tend to grow at the end of shoots. The female flowers are green and erect. Once pollinated however, they transform into cones that grow in size; gravity takes over and when ripe they hang straight down from the branches. These long, slightly curved cones are brown and large, up to 15cm in length, and are among the longest of all American spruces. (info source: apps.kew.org)
Genus - Picea
Species - Breweriana
Common name - Weeping Spruce
Pre-Treatment - Not-required, but recommended
Hardiness zones - 6 - 9
Height - 15 m (49ft)
Spread - 5 m (16ft)
Plant type - Large Tree
Vegetation type - Evergreen
Exposure - Sun to Partial Shade
Growth rate - Slow
Soil PH - Acidic, Neutral
Soil type - Poor peaty, wet cold and shallow soils
Water requirements - Average, drought tolerant
Landscape uses - Very decorative
Germination rate - 80%
Leaf / Flower color - Green, silver green / --
|Germination||1. Soak the seeds in room temperature water overnight.|
2. Keep the seeds in refrigerated, soil-filled zip-lock bags for 2-3 months after the initial soaking, a process that mimics the natural dormancy period they would experience during winter months in the wild. Some experts recommend this method, and others say seeds may be planted immediately after soaking. If soaked seeds are not kept in soil, they may be refrigerated for up to 14 days before use.
3. Place a 3-inch layer of dry soil, such as peat moss or clean sand, in a small vase. Bury spruce seeds 1/4-inch below soil. Cover soil with mulch layer. Keep the vase in a partially shaded place. Water occasionally, so that the soil is always slightly moist.
4. Seed will sprout in three to eight weeks. For one year, keep seedling in partially shaded place. Water occasionally, so that the soil is slightly moist.
5. After one year, transfer the seedling to a gallon-sized vase or larger, maintaining a balance of dry, clean soil and mulch. The seedling may now be kept in full sun. Continue watering occasionally, so that soil is slightly moist. (info source: eHow.com)