Sambucus ebulus is a herbaceous perennial that typically reaches about 1.2 m and flowers in the UK from May to July. It prefers a sunny position in moist but well‑drained soils, and will grow in sandy, loamy or clay soils. The species is native to parts of Belgium and established in nearby regions. Wear gloves when handling because the plant is harmful if eaten, although fruit and flowers become edible after cooking.

Dwarf elder (Sambucus ebulus) is a herbaceous perennial that flowers May to July and prefers full sun with moist, well‑drained soil.

https://en.wikipedia.org/wiki/Sambucus_ebulus

Sambucus is a genus of between 20 and 30 species of flowering plants in the family Viburnaceae. The various species are commonly referred to as elder, with the flowers as elderflower, and the fruit as elderberry.

Sambucus ebulus

Dwarf elder | Sambucus ebulus

Viburnum lantana 'Lanceolatum' is a cultivar of Viburnum (family Viburnaceae) with a well-branched, multi-stemmed habit and deciduous leaves. It bears dense clusters of creamy-white flowers in April to June, followed by a sequence of fruits that ripen through red to black. The plant tolerates a wide range of soils and aspects, making it adaptable across garden situations. Leaves have a noticeably downy underside where present hairs are apparent.

Viburnum lantana 'Lanceolatum' produces creamy-white flower clusters April to June and tolerates a wide range of soils.