Royal Palm Tree (Roystoneaoleracea)
Profile Information
Scientific name:
Common name: Royal palm
Family: Arecaceae
USDA hardiness zones: 9
Origin: The Royal Palm is native to Cuba and North America.
Royal Palm Description:
 Roystonea is a genus of large, unarmed, single-stemmed palms with pinnate leaves. The large stature and striking appearance of a Roystonea palm makes it a notable aspect of the landscape. The stem are smooth and columnar. Stems often are swollen and bulging along portions of their length, which may reflect years where growing conditions were better or worse than average. Leaf scars are often prominent along the stem, especially in young, rapidly growing individuals. Stem color ranges from gray-white to gray-brown. The largest royal palm, R. oleracea, reaches heights of 130 feet, but most species are in the 49 to 66 feet range.
Royal palm tree leaves consist of a sheathing leaf base, a petiole, and a rachis. The leaf base forms a distinctive green sheath around the uppermost portion of the trunk. Known as the crownshaft, this sheath extends 4 feet 7 inches to 6 feet 7 inches down the trunk. The petiole connects the lead base with the rachis.
Royal Palm Culture:
The Royal Palms are not particular about soil.
Royal Palm Growth Rate:
Fast
Royal Palm Light requirements:
Royal Palm (Roystonea oleracea) likes high light requirements. Likes bright sunny conditions.
Royal Palm Tree Water requirements:
Moderate. The Royal palm likes lots of water but it is moderately drought tolerant. This makes it a good tree even if you live in a place that has watering restrictions. While it does love to be watered, it must be well drained.
Royals Palm Trees Maintenance:
Low Maintenance
Royal Palm Tree Hardiness:
Roystonea oleracea can tolerate cold down to 27 F when mature enough. USDA Zones 9-11. Can survive cold spells down to 28 F if short in duration.
Royal Palm Tree Insects and Diseases:
The Royal palm is resistant to many pests and diseases; however there are a few that you should be aware of. One potential pest is the Royal Palm bug.
Royal Palm Tree Propagation by seed:
Propagated by seed.
Royal Palms Usage:
Royal palm trees with smooth grey trunks resembling cathedral pillars there is not a more impressive palm with which to line a boulevard. Ranks of Royal Palms lend a distinctly unique look to Miami's Biscayne Boulevard. Roystoneas provide a sophisticated look to thoroughfares throughout the Caribbean. Assembled into a grove on an expanse of lawn, Royal Palms create an eye-catching focal point.
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