Brugmansia
The Trumpet of the Angels
Red angel's trumpet
Scientific classification
Class
Dicotyledoneae
Division
Angiospermae
Family
Solanaceae
Order
Solanales
Genus
Brugmansia
Species
sanguinea
Key information
Description
Brugmansia sanguinea is a shrubby plant with an upright habit. It flowers profusely throughout late spring and summer, producing numerous elongated, trumpet-shaped flowers that hang downwards, hence its common name.
Native to South America, it can be grown in the garden in Mediterranean climates where temperatures do not fall below 5–6°C. Elsewhere, it is kept in a pot so that it can be brought indoors in winter to temperatures between 8 and 10°C.
In summer, its water requirements increase and it must be watered regularly, especially if placed in full sun, where it grows most vigorously. However, it also adapts to partial shade, requiring less water but producing fewer flowers.
Origin and history
Curiosities and special features
The botanical genus Brugmansia was named in 1805 in honour of the Dutch physician and botanist S. J. Brugmans.
The separation from the closely related genus Datura, with which it is still often confused, was finalised in 1973, as these are plants with different characteristics; for example, Brugmansia species are perennials with pendulous flowers, whilst Datura species are mainly annual herbaceous plants with flowers facing upwards.
Origin and distribution
Native to South America, its natural habitat is the regions on the slopes of the Andes, between Colombia and Chile, where it can grow as a small tree.
Introduced to Europe in the 19th century, it subsequently became widely established as an ornamental plant, both for gardens in mild coastal areas and as a pot plant.
Main features
Leaf
Leaf has a lanceolate lamina.
Leaf colour
a solid colour, designed to highlight the flowers with their tubular corollas.
Plant height
The plant’s height ranges from 0.35 to 2 m.
Lifespan
A perennial species that is either evergreen or semi-evergreen, depending on the prevailing climatic conditions.
Where to plant
It is often grown as a pot plant because of its temperature requirements; however, in Mediterranean climates where temperatures do not fall below 5–6 °C, it can be grown in the garden.
Stem
The stem is semi-woody; the plant has no thorns.
Flower
The flower is simple in shape, large in size, with a funnel-shaped corolla. The petals are solid-coloured and variegated. It flowers from late spring to late summer, with a flowering period of between 90 and 120 days. It has sweet notes and is fragrant, with a delicate aroma.
Growth
Medium-vigorous Growth plant.
Plant habit
The resulting growth habit is upright, open and branched.
Branching
A medium-sized plant with young, fairly flexible branches that eventually become woody.
Growing conditions
PH
It requires a fairly acidic substrate pH, with optimal values ranging from 5.0 to 5.5.
Sun exposure
Suitable for partial shade or full sun.
When placed in full sun, it has high water requirements in summer but grows more vigorously, whilst in partial shade it requires less water but tends to produce fewer flowers.
Ideal climate and temperature
In areas with cold winters, it is necessary to bring it indoors, where temperatures should be between 8 and 10°C, and place it in a bright spot.
The recommended temperature during the growing season ranges from a minimum of 16°C to a maximum of 22°C.
Use
Loved for the uniqueness and elegance of its blooms, it is widely used in:
Ornamental purposes
Hardiness
A plant of moderate hardiness; take care to meet its temperature and water requirements throughout the different seasons.
Soil
Use a high-quality, well-draining and light potting mix.
We recommend a potting mix for green houseplants, containing peat and fine perlite.
Difficulty
It can be moderately difficult to grow, but if you follow the correct instructions, it will produce excellent results in terms of growth and flowering.
Growing tips
Below are specific cultivation guidelines, relating mainly to temperature and irrigation management:
Keep the growing medium dry at low temperatures It prefers a hot, dry climate It requires abundant watering but without waterlogging
Care and plant health
Propagation
Vegetative propagation takes place via apical and stem cuttings.
Repotting
Repot before summer, preferably in early spring.
Watering
During the hottest period, particularly if placed in full sun, it requires frequent watering but care must be taken to avoid waterlogging, which can lead to root rot. A lack of water causes the buds to drop and the leaves to turn yellow.
Care must be taken not to overwater, particularly in the shoulder seasons and during winter, when it is advisable to keep the potting compost relatively dry.
Fertilising
During the growing season, add a general-purpose fertiliser for flowering plants to the potting mix, diluted in the watering can.
In summer, fertilise every 10–15 days to keep the foliage vigorous and the flowers more colourful.
Edibility and toxicity
Pet safety
Toxic
Edibility for humans
Non-edible
Toxicity for humans
Toxic
Expert advice
Tip
The flowers are easy to remove once they have wilted; the plant will grow better. In winter, place it in a bright spot that is not too cold. In summer, it is advisable to fertilise it every 10–15 days to keep the foliage looking its best and the flowers as colourful as possible.
Profile curated by Maurizio Arbusti.




