Angel trumpet is the common name of brugmansi aurea and datura. Both plants are closely related with similarly shaped flowers and foliage. Brugmansi aurea is a perennial with trumpet-shaped, pendulous flowers and is the plant most often referred to in gardening catalogs as angel trumpets or angel's trumpet. Datura is an herbaceous annual or short-lived perennial with upright-facing, trumpet-shaped flowers. Brugmansi aurea has fragrant flowers (the scent is released in late afternoon and night) that come in shades of red, peach, apricot, lavender and yellow. All parts of this plant are poisonous, so wear gloves when handling the seeds and the plant.
Planting in Ground
Sow angel trumpet seeds outdoors after all threat of frost has passed and soil temperatures are above 50 degrees F.
Choose a spot with full to part shade and well drained soil. Angel trumpets prefer afternoon shade in places with hot summers. Plant your angel trumpet close to outdoor patios or other nighttime entertainment areas so you can enjoy the flower's scent.
Dig 3 to 4 inches of compost into the top 6 inches of soil. Angel trumpets need soil that is well-drained, rich in nutrients and retains moisture.
Scatter the seeds over the soil and cover with 1/4 inch of compost. Space seeds 3 to 4 feet apart. Or wait until the seedlings germinate and thin.
Water the seeds well and keep the soil moist but not soggy. Allow the top 1/4 to 1/2 inch to dry slightly before watering again. Seedlings will germinate in 6 to 15 days depending on cultivar.
Plant angel trumpet plants directly into the garden by mixing 3 to 4 inches of compost into the top 6 inches of soil. Dig a hole just large enough for the root ball and deep enough to put the plant at the same depth it was growing in its container. Back fill around the roots using compost. Keep the soil moist, allowing the top 1/4 to 1/2 inch of soil to dry out slightly before watering again.
Planting in Containers
Plant angel trumpet plants outdoors after all threat of frost has passed.
Choose a container that is twice as large and deep as the mature size of the angel trumpet cultivar you are growing.
Mix a general purpose potting mix with compost to form a 50/50 soil/compost mix. Leave a hole in the center just large enough for the angel trumpets root ball. Fill the container with the mix leaving 3 to 4 inches between the top of the container and the soil.
Plant your angel trumpet so that is growing at the same depth as it was at the nursery. Back-fill around the roots with the potting soil/compost mix.
Provide 2-3 inches of water after planting to settle the soil around the root ball.
Plant angel trumpet seeds in containers by filling a large container with potting soil mixed with compost to form a 50/50 soil/compost mix. Plant 1 to 2 seeds per container and cover with 1/4 inch compost. Keep the soil moist allowing the top 1/4 to 1/2 inch to dry slightly before watering again.