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Is Beaucarnea Recurvata in the Outdoors Slow or Fast Growing?

Beaucarnea recurvata, or the ponytail palm, is a tropical succulent tree grown for its bottle-shaped trunk and grassy foliage. It thrives outdoors within U.S. Department of Agriculture plant hardiness zones 10 and 11, where it is sometimes added to low-water landscaping. Ponytail palms have a slow to moderate growth rate, meaning they grow roughly 1 to 2 feet annually. However, their growth rate outdoors is greatly affected by the climate and their growing conditions.
  1. Climate Requirements

    • Ponytail palms originated in the arid, semitropical lowlands of southeastern Mexico, so they are tolerant of drought, humidity and heat. Cold temperatures may cause damage to younger ponytail palms, although mature specimens can withstand temperatures as low as 18 degrees Fahrenheit for a short period without significant damage. In colder climates, ponytail palms must be grown in pots and brought indoors when cold weather sets in; however, in warmer areas they can be grown outdoors year-round without issue.

    Growing Conditions

    • True to their subtropical origins, ponytail palms perform best with full sun exposure and sandy, fast-draining soil. They will tolerate light shade and heavier soil, but they must be watered far less to eliminate the risk of root rot and bacterial infections. Areas with poor drainage will quickly kill ponytail palms, so don't plant them where puddles form after rainfall or in areas affected by automatic irrigation systems. In the lower end of their USDA hardiness zone range, grow ponytail palms in a sheltered location such as against a south-facing wall where it is warmer to keep their growth from slowing too drastically during the winter months.

    Care

    • The single most important aspect of caring for ponytail palms is the amount of water they receive and when it is applied. Overwatering is the single greatest threat to the health and longevity of ponytail palms, so it is vital to allow the soil to dry out completely between waterings. Water every three weeks during the summer months, but withhold watering during rainy or cool weather. In winter, apply only enough water to keep the tree from dropping its leaves. Pruning and shaping are not typically necessary, but any brown leaves and wilted foliage that develop can be removed year-round without issue.

    Considerations

    • Ponytail palms are relatively low maintenance if grown under the right conditions. However, they may develop a variety of afflictions that may impact their healthy growth and vitality. Root rot, bacterial leaf streak and stem rot are a significant threat if ponytail palms are overwatered or if they are grown in poorly drained soil. Additionally, potted ponytail palms may attract spider mites, scale or mealybugs even if they are grown outdoors, and they should be monitored for new infestations so they can be treated in a timely manner.