Small or medium sized shrub, usually to 10-15ft. Grows well in part shade, or in cool climates, full sun. Will stand short frosts, but generally does best in areas where the temperature rarely drops below 32F. Plant likes regular water, especially when growing. All plant parts are highly poisonous and should never be injested. Large trumpet flowers open downward and bloom for most of the year. The red angel's trumpet grows somewhat better in cooler but near frost free climates, although it will grow in the tropics, flowering may be limited.
Propagation: By seed, by cuttings.
Soaking the seeds overnight in hand-hot water is often beneficial. Sow the seeds in a good soil mix, and barely cover them with soil. Mist the soil heavily, and cover the container with a clear plastic dome. (A sheet of clear plastic will work, but an actual dome is better). Place the seed tray in good light, and if bottom heat is available it will be helpful. Check often, to be certain that your soil doesn't dry out. If there's condensation on your dome, it's plenty wet. Don't water again until this clears up, because too wet seeds can rot or develope fungal diseases.