Echeveria black Succulent: The rosette of this succulent has a deep green to brown color. It is able to be grown indoors, although it will lose its color if it does not receive enough light. Watch for a red flower in fall or early winter. This plant grows up to 6″ (15 cm) tall-Plant grows up to 8″ (21 cm) wide. It is Generally non-toxic to humans and animals. Set a watering schedule for your succulent and the app will remind you when it’s time to water (so you’re not left wondering when you watered last).