Sambucus cerulea is a large, deciduous shrub, which can grow to be 9 m (30 ft) in height and 6 m (20 ft) in width, becoming tree-like if trained into dominant trunks. It is distinguishable from other elderberries by the glaucous powder coating on its bluish-black berries. It normally grows rather wildly from several stems, which can be heavily pruned (or even cut to the ground) during winter dormancy.
The leaves are hairless, strongly pointed and sharp-toothed. They are elliptical to lanceolate, and the blade extends unequally on the stalk at the base. The leaves are commonly 3–15 cm (~1-6in) long and 2–6 cm (~1-2in) wide.
The white or creamy colored flowers, occurring May to June, are numerous and form a flat-topped cluster usually about 5–20 cm (2–8 in) wide. They are umbel-shaped, normally with 4 to 5 rays extending from the base. The flowers have a strong, unpleasant odor. Individual flowers are 4–7 mm wide.
The fruits given are berry-like drupes. They are juicy, round, and approximately 4–6 mm in diameter. They are bluish-black appearing as a pale powdery blue color. Each fruit contains 3 to 5 small seed-like stones, each enclosing a single seed. (info source: wikipedia.org)
Genus - Sambucus
Species - Caerulea
Common name - Blue Elderberry
Pre-Treatment - Required
Hardiness zones - 5 - 9
Height - 8'-10' / 2.4m - 3.0m
Plant type - Shrub
Vegetation type - Deciduous
Exposure - Sun to Partial Shade
Growth rate - Medium
Soil PH - Acidic, Neutral, Alkaline
Soil type - Clay, laom, Sand, well drained
Water requirements - Average
Landscape uses - Woodland Garden Sunny Edge; Dappled Shade; Shady Edge
Germination rate - 90%
Bloom season - Summer
Leaf / Flower color - Green / White
|Germination||1. Soak in hot tap water for 24 hours|
2. Cold/moist stratify for 60 days. Seeds can be stratified in dampened peat or sand, in a plastic box or bag at 4°C or 5°C in a refrigerator. The seeds should not be frozen or in a wet medium.
3. After the stratification sow seed 1/4" deep, tamp the soil, mulch the seed bed.
Other: if water treatment does not allow seed to imbibe, sulfuric acid treatment is required. can be fall sown without stratification.