Hammock fern
Blechnum appendiculatum
Last reviewed: September 2026
Hammock fern (Blechnum appendiculatum) is a perennial fern native to FL, GA, TX. It blooms in June, July, and August.
Toxicity unknown
Hammock fern (Blechnum appendiculatum) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part shade
Water
high
Size
12"–24" H × 12"–24" W
Bloom
Jun, Jul, Aug
Native to
FL, GA, TX
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 460 programs across 44 states, each with a link to the provider and the date we last checked it.
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A clumping evergreen fern with glossy, leathery, once-pinnate fronds arising from a short rhizome, found naturally in shaded, humid hammocks.
Growing Hammock fern
Grow Hammock fern in part shade and high water. Mature plants reach 12 to 24 inches tall and spread 12 to 24 inches wide.
Wildlife value
Provides year-round shaded ground cover and shelter for small wildlife.
Common questions
- How much sun does Hammock fern need?
- Hammock fern grows best in part shade conditions.
- When does Hammock fern bloom?
- Hammock fern blooms in June, July, and August.
- Where is Hammock fern native?
- Hammock fern (Blechnum appendiculatum) is native to FL, GA, TX, per the World Checklist of Vascular Plants (Kew).
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Hammock fern? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.