The flowers are interesting to pollinators like bees, though birds generally take in the berries. The plant might be eaten, with this sort of foods as elderflower gain or elderberry jam and has medicinal uses. The evergreen Oleander plant is delicate to frost, so it needs to be carefully overwintered. https://jaredfjmor.theblogfairy.com/14654174/a-secret-weapon-for-fruit-platters