Jamaican Royal Palm (Roystonea altissima) is a tall, majestic palm with a slender, smooth trunk and a crown of feathery fronds. Native to Jamaica, it's a striking ornamen
At-a-glance light, water, soil, and growing conditions from plant data
Full sun.
100% intensity
Needs at least 6-8 hours of direct sunlight daily.
Consistent moisture, but avoid waterlogging.
50% intensity
Allow topsoil to dry slightly between waterings.
Well-drained
50% intensity
Warm to hot.
75% intensity
Thrives in temperatures between 20-30°C; avoid frost.
Regular feeding during growing season.
50% intensity
Use a balanced palm fertilizer with micronutrients.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
None
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly, keeping the soil consistently moist but not waterlogged. Allow the top few centimeters of soil to dry out between waterings, especially in warmer months. Reduce watering during cooler, dormant periods.
Ensure good drainage to prevent root rot.
Remove dead or dying fronds by cutting them close to the trunk. Avoid pruning healthy green fronds as they are essential for photosynthesis. Do not top the palm, as this can lead to trunk rot and death.
Seeds can be sown in a well-draining medium. Germination can be slow and erratic, often taking several months. It is best to sow seeds fresh as they lose viability quickly.
This method is generally for experienced growers.
This palm is rarely repotted due to its large size and extensive root system. Young specimens can be repotted into a slightly larger container when root-bound, using a well-draining potting mix.
Mature plants are best left in situ.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Jamaican Royal Palm (Roystonea altissima)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Arecales |
| Family | Arecaceae |
| Genus | Roystonea |
| Species | Roystonea altissima |
Similar in genus Roystonea
Answers based on plant encyclopedia data
