Echeveria nodulosa is a succulent with up to 2 feet (60 cm) long branched stem and up to 5 inches (12.5 cm) wide rosettes of olive green leaves that are marked with vivid red coloring on the margins and in the center. Pale yellow flowers marked with red are produced on up to 2 foot (60 cm) tall, erect and unbranched inflorescence. Easy to grow succulent. Provide morning sun or very bright, indirect light. Water when dry. Trim as needed. Cacti & Succulent Care. Many people tend to think that cacti and succulents are too difficult to care for and decide against even buying them. As it turns out, many people are simply caring for them too much or too often. Cacti and succulents will do quite well under the same conditions which would be considered neglect with other plants. -Watering- The most common problem people have with cacti and succulent plants is overwatering. They are 'water storing' plants and will do better with less water than they will with more. Since every situation is considerably different, there is not set time interval for when to water cacti and succulents. Many factors play a role in the timing (such as humidity, light, and temperature). General Rule: Water Cacti and succulents thouroghly and allow them to dry out completely between watering.