Lignumvitae Key Botanical State Park is a boat-access island park off Islamorada in the Florida Keys, known for its tropical hardwood hammock and historic homestead. Walk among rare plants, including lignum vitae trees, and look for fish and birds from the dock. When a ranger-led tour is available, it adds context to the island’s natural history and the house built by William J. Matheson in 1919. Plan your transport and check tour availability before setting out; mosquitoes can be heavy, especially in summer.
Getting to the island
Lignumvitae Key Botanical State Park lies offshore from Islamorada and is accessible only by boat or kayak. A trip here needs more planning than a stop beside the Overseas Highway: arrange your own water transport or check whether a passenger shuttle is running. The park is a quiet island excursion, and the journey is part of the visit.
Before leaving, check the Florida State Parks website for tour times and availability. Ranger-led visits are not something to assume will be running whenever you arrive. If you are paddling over, confirm the park is open and a ranger will be present if a guided tour is important to you.
The hardwood hammock and wildlife
The island protects tropical hardwood hammock habitat, a dense forest of trees and other plants. Lignum vitae, the tree that gives the key its name, is among its botanical draws. The species is endangered and known for purple flowers and exceptionally dense hardwood. Rare plants and protected birds also have a place in this habitat.
A walk through the trees is the main way to explore the park on land. Give yourself time to look closely at the vegetation, then pause at the dock: fish and other wildlife can be seen from the water’s edge. The island’s natural quiet is part of the appeal, though insects can be persistent. Pack strong repellent, particularly for a summer visit.
The Matheson homestead
William J. Matheson bought the island in 1917. The house associated with him was built in 1919, and the homestead offers a glimpse of life in the Keys in the 1920s. It is a useful counterpoint to the surrounding forest: the house is described as the island’s main sign of human settlement.
The homestead includes a windmill and a cistern for collecting rainwater. When the house is open, take time to see it as part of the island’s history, not just as a stop on the walking route. Ranger-led tours can connect the house and the tropical hammock; check ahead so you know whether a guided visit is available.
FAQ
How do you get to Lignumvitae Key Botanical State Park?
The island is accessible only by boat or kayak. Arrange your own transport or check whether a passenger shuttle is available.
Are ranger-led tours available?
Ranger-led tours are available at certain times. Check the state park website before visiting, and confirm a ranger will be present if you are paddling over.
What can you see at the park?
The park has a tropical hardwood hammock with lignum vitae trees, a historic homestead built in 1919, and a dock where you can look for fish and wildlife.
What should I bring?
Bring strong insect repellent, especially in summer, when mosquitoes and no-see-ums can be troublesome.
