There are around 10 to11 species of Roystonea. Although, the Cuban royal palm is the famous one. Royal Palms belong to the family of Arecaceae. The trunk is smooth grayish brown in color.
The plant has a self-pruning characteristic. The leaves fall to the ground when they die or turn brown.
This is a tall majestic tree with a single trunk.
They are a moderate maintenance plant. It requires special attention and care during their budding season but is independent once they are mature. The plant is too big to be grown in a container.
Royal palms provide a sophisticated look in your driveway.
Royal Palms can survive frost. They can tolerate a minimum temperature of -3°Cto 46°C. It requires 6 to 7 hours of direct sunlight. The plant can't grow in shade; make sure you provide less sun but not shade.
Royal palm demands a lot of direct sunlight. They need an ample of afternoon sunlight to grow.
They can survive high humid conditions. The plant requires humid alluvial soil. They require poor soil conditions but it should be humid in texture.
They can tolerate calcareous and alkaline soil.
The soil ph should be neutral or alkaline. Loamy or sandy soil will also do for the plant.
As the plant is a heat lover they require water a lot. Water the plant in adequate amounts. During the summer season, water the plant with 5 to 6 cups of water alternately. The plant is somewhat drought tolerant.
The fruits of the plant are small dark purple or black in color. There is smaller beige or tan colored seed inside the fruit. The foliage of the plant is like feather fronds.
The foliage is about 10 feet long. They are dark green in color with long and sooth crown shaft. The mature height of the plant can grow up to 40 feet.
Sometimes they can grow up to 70 feet. The basal diameter of the trunk can be more than 30 inches.
Feed the royal palms with granular fertilizers which contain potassium and micronutrients in them. If you are feeding the plant with potassium fertilizers then it should be in the sulfur coated form.
You can also feed ammonium salts to the plant; in order to fulfill the nitrogen content in the plant.
Give 8-12-8 magnesium with micronutrients. They require slow releasing boron during their growing period.
The plant is also known for its religious significance. The plant has a symbolic importance in Palo and Cuba. It cannot be grown indoors; they are best to be grown in your garden with vast open space.
Royal palms can tolerate salt drifts. They can be grown near the salt water.
The bark of royal palm is affected by scarab beetles during their blooming period. They devastate the bark of the plant making it hollow. Royal palms are also prone to certain fungal infections.
You can get rid of them by using certain fungicides and pesticides.
Plant the palms around 10 to 12 feet apart in case you are planting it in a row as they the roots of the palms stretch out.
You can propagate the plant from its purple seeds. Propagate it from 1/4'' of purple seeds. The plant is used for an ornamental purpose. It is widely used for landscaping and as a decorating accent for taller houses or in driveways.