Species of this genus produce clusters of tiny flowers with a sweet, delicate fragrance. Foliage is handsome. Provide well-drained soil.Heliotropium arborescens
From Peru. This old-fashioned favorite grows to 4 ft. tall and 2 ft. wide in the mild-winter zones where it is a perennial, but it’s typically treated in all regions as a summer bedding annual to 1 1/2–2 ft. high and 1–1 1/2 ft. wide. Dark violet, purple, blue, or white blossoms are densely set in curved, one-sided spikes that form rounded, 3–4-in. clusters. They have a scent reminiscent of vanilla. Veined leaves have a darkish purple cast.
‘Black Beauty’ and ‘Iowa’ are varieties with deep purple flowers; there are also dwarf forms under 1 ft. high.
All are good in pots (in cold climates, overwinter them in a frost-free spot). They can take full sun in cooler climates but need partial shade in warmer ones.
From Peru. This old-fashioned favorite grows to 4 ft. tall and 2 ft. wide in the mild-winter zones whe...
Known botanically as Passiflora edulis, this vigorous South American native climbs by tendril...
Native to New Zealand. Grows to 30 ft. tall or more, spreading as wide as tall; prune lower branches t...