Key Thatch Palm Plant Care
Leucothrinax morrisii (H.Wendl.) C.Lewis & Zona
Updated · Sources · How we source care data
Leucothrinax morrisii, the Key thatch palm, is a small palm which is native to the Greater Antilles, northern Lesser Antilles, The Bahamas and Florida and the Florida Keys in the United States.
Every 7–14 days
Full sun to partial shade
60–90°F
50–70%
At a glance
How do you care for Key Thatch Palm?
Water Key Thatch Palm every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–90°F (16–32°C) and 50–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the Key Thatch Palm Native To?
- Antigua and Barbuda
- Aruba
- Bahamas
- Barbados
- Cayman Islands
- Cuba
- Curaçao
- Dominica
- Dominican Republic
- Grenada
- Guadeloupe
- Haiti
- Jamaica
- Martinique
- Puerto Rico
- Saint Kitts and Nevis
- Saint Lucia
- Saint Vincent and the Grenadines
- Trinidad and Tobago
- Turks and Caicos Islands
- United States
- Virgin Islands, British
- Virgin Islands, U.S.
What Is the Key Thatch Palm?
Key Thatch Palm (Leucothrinax morrisii) belongs to the Arecaceae family within the Leucothrinax genus. Key Thatch Palm is native to the Greater Antilles, northern Lesser Antilles, The Bahamas and Florida and the Florida Keys in the United States. Key Thatch Palm is also known as Key Thatch, Morris' Thatch Palm.
Key Thatch Palm displays a solitary trunk palm growth habit, reaching up to 20 ft tall with a spread of approximately 10 ft. Key Thatch Palm produces creamy white flowers in clusters.
Leaf size: approximately 24 inches.
How Often Should You Water a Key Thatch Palm?
Leucothrinax morrisii requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–14 days
Let soil partially dry between waterings
What Light Does the Key Thatch Palm Need?
Key Thatch Palm thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Key Thatch Palm Prefer?
Leucothrinax morrisii grows best at temperatures of 60–90°F. Key Thatch Palm prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–90°F
Humidity
50–70%
What Soil Mix Works Best for a Key Thatch Palm?
Well-draining sandy soil mix with added organic matter. Good drainage is essential for Key Thatch Palm to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Key Thatch Palm?
Feed Key Thatch Palm every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Key Thatch Palm?
Repot every 2-3 years. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Key Thatch Palm?
Key Thatch Palm can be propagated through seeds.
Is the Key Thatch Palm Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Key Thatch Palm, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Key Thatch Palm?
Key Thatch Palm is susceptible to spider mites, palm aphids. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Key Thatch Palm Need?
Key Thatch Palm grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Key Thatch Palm is native to the Greater Antilles, northern Lesser Antilles, The Bahamas and Florida and the Florida Keys in the United States. In cooler regions, grow Key Thatch Palm as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Key Thatch Palm is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Leucothrinax genus — compare its care with other Leucothrinax species on PlantoScan.
Leucothrinax is part of the Arecaceae plant family — browse all Arecaceae genera and species.
Key Thatch Palm thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Leucothrinax morrisii (H.Wendl.) C.Lewis & Zona, family Arecaceae (first published in Palms (1999+) 52: 87 (2008)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Key Thatch Palm, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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