Emeralds TM Angels Trumpet Brugmansia Yellow 4 Inch Starter Plant Economical 4 Inch Starter Size Plant Growing In A 4 Inch Starter Size Pot. Plant will average 6 to 10 inches tall. No bloom or bud on arrival. Matures as a large branching multi-stemmed tree like shrub at about 10 to 12 feet. Unique Unusual Golden Yellow 8 to 10 inch night time fragrant upside down trumpet flowers. Quick Growing Exotic Romantic Look Tropical. Recommended for USDA Zones 9, 10, 11 (Cold Protection Recommended All Zones for the best year round appearance, earliest bloom, and longest life.