Sambucus canadensis

Sambucus canadensis, commonly called American elder, is native to eastern North America. The Royal Horticultural Society currently lists American elder as Sambucus nigra var. canadensis.

Sambucus canadensis is a deciduous Shrub growing to 4 m by 4 m at a fast rate.
It is hardy to zone 3. It is in flower in July, and the seeds ripen in September. The species is hermaphrodite and is pollinated by Insects.
Suitable for: light , medium and heavy soils and can grow in heavy clay soil. Suitable pH: acid, neutral and basic soils. It can grow in semi-shade or no shade. It prefers moist soil. The plant can tolerates strong winds but not maritime exposure.
It can tolerate atmospheric pollution.

Tolerates most soils, including chalk, but prefers a moist loamy soil. Grows well in heavy clay soils. Tolerates some shade but is best in a sunny position. Tolerates atmospheric pollution and coastal situations. A very hardy plant, when dormant it tolerates temperatures down to about -34°c. The flowers have a muscatel smell. A fast-growing but short-lived plant, it often forms thickets by means of root suckers. It is occasionally cultivated for its edible fruit, there are several named varieties, though these have mainly been developed for their ornamental value. Yields of up to 7kg of fruit per tree have been recorded. Plants in this genus are notably resistant to honey fungus. The plant is heat tolerant in zones 9 through 1. .
At this temperature, many plants begin to suffer physiological damage. Heat Zones range from 1 to 12 .
For example Heat Zone. 11-1 indicates that the plant is heat tolerant in zones 11 through 1.) For polyculture design as well as the above-ground architecture information on the habit and root pattern is also useful and given here if available. The plant growth habit is multistemmed with multiple stems from the crown . The root pattern is flat with shallow roots forming a plate near the soil surface . The root pattern is suckering with new plants from underground runners away from the plant .