 |
 |
|
|
|
|
Royal Palm Roystonea regia
|
 « Return |
|
| Exposure |
|
Sun |
|
| Average Height x Width |
|
60’ - 80’ T x 10’ - 15’ W |
|
| Typical Height |
|
15’ (to26’) |
|
| Water Requirements |
|
Water regularly as needed |
|
| Spacing |
|
15’ - 20’ apart |
|
| Cold Hardiness |
|
20° - 30° F |
|
| Hardiness Zone |
|
10A - 11 |
|
| Growth Rate |
|
Moderate |
|
| Origin |
|
Cuba |
|
| Salt Tolerance |
|
Moderate |
|
| Drought Tolerance |
|
Moderate to high |
|
| Soil Requirements |
|
Widely adaptable |
|
| Light Requirements |
|
High |
|
| Nutritional Requirements |
|
Moderate |
|
| Uses |
|
Specimen tree, street tree, border |
|
| Propagation |
|
Seed, germinating in 2 3 months, sometimes longer |
|
| Human Hazards |
|
Irritant |
|
| Major Pest Problems |
|
Royal palm bug |
|
| Major Disease Problems |
|
Fungal leaf spots, potassium deficiency (Florida), ganoderma, phytophthora bud rot |
|
The majority of the old, large Royal Palms in southern Florida are specimens of this species, brought from Cuba during the 1930’s. Most Royal Palms sold in nurseries are Cuban, even if they are labeled the Florida Royal. The bulging trunk is most characteristic of this species. The Cuban Royal occurs natively on upland sites; it is thus likely more drought tolerant than the Florida species. It makes a fine specimen in lawns, however, thriving on the extra irrigation. Royal Palms are best avoided when landscaping around modestly sized homes; their stature makes a small house even smaller. Royal Palm bug, which destroys young leaves, can be a persistent problem in FLorida, especially after a mild winter. Dimethoate foliage sprays have provided the best control. |
|
|
 |
