North America Native Plant

Palmer’s Spleenwort

Botanical name: Asplenium palmeri

USDA symbol: ASPA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Palmer’s Spleenwort: A Charming Native Fern for Southwestern Gardens Looking for a delicate, low-maintenance fern that’s perfectly suited to the American Southwest? Meet Palmer’s spleenwort (Asplenium palmeri), a charming native perennial that brings understated elegance to gardens from Arizona to Florida. This petite fern might not be the showiest plant ...

Palmer’s Spleenwort: A Charming Native Fern for Southwestern Gardens

Looking for a delicate, low-maintenance fern that’s perfectly suited to the American Southwest? Meet Palmer’s spleenwort (Asplenium palmeri), a charming native perennial that brings understated elegance to gardens from Arizona to Florida. This petite fern might not be the showiest plant in your garden, but it’s got character in spades and asks for very little in return.

What Makes Palmer’s Spleenwort Special

Palmer’s spleenwort is a true native beauty, naturally occurring across Arizona, Florida, New Mexico, and Texas. As a perennial fern, it offers year-round interest in warmer climates, adding delicate texture and that soft, feathery look that only ferns can provide. Its pinnately divided fronds create intricate patterns that catch the eye without overwhelming other plants.

Where Palmer’s Spleenwort Shines in Your Garden

This adaptable little fern fills several important roles in native and water-wise landscapes:

  • Perfect for tucking into rock gardens where it softens hard edges
  • Excellent understory plant for shaded areas beneath larger natives
  • Ideal for xerophytic gardens that celebrate drought-tolerant plants
  • Wonderful texture contrast alongside succulents and other desert plants

Palmer’s spleenwort works particularly well in naturalistic settings where you want to recreate the subtle beauty of native plant communities.

Growing Conditions and Care

One of the best things about Palmer’s spleenwort is how easy-going it is once you understand its preferences. This fern thrives in USDA hardiness zones 7 through 10, making it suitable for much of the southern United States.

Light requirements: Partial to full shade works best, though it can handle some morning sun in cooler climates.

Soil needs: Well-draining soil is absolutely crucial. This fern won’t tolerate soggy conditions, so make sure water can move through the soil freely.

Water requirements: Once established, Palmer’s spleenwort is surprisingly drought-tolerant. Water regularly during the first growing season to help it get established, then reduce watering frequency.

Planting and Care Tips

Getting Palmer’s spleenwort established in your garden is straightforward:

  • Plant in fall or early spring for best establishment
  • Improve heavy clay soils with organic matter or plant in raised areas
  • Mulch lightly around plants to retain moisture and suppress weeds
  • Avoid overwatering – this is the quickest way to lose this fern
  • Remove any damaged or dead fronds as needed

Wildlife and Garden Benefits

While Palmer’s spleenwort may not attract pollinators like flowering plants do, it contributes to garden biodiversity in other ways. The dense fronds provide shelter for small insects and spiders, which in turn support bird populations. As a native plant, it’s naturally integrated into local ecosystems and requires fewer resources than non-native alternatives.

Is Palmer’s Spleenwort Right for Your Garden?

This native fern is an excellent choice if you’re looking to create authentic southwestern plant communities or add subtle texture to shaded areas. It’s particularly valuable for gardeners who appreciate understated beauty and want plants that work with, rather than against, local growing conditions.

Palmer’s spleenwort might not be the right choice if you’re looking for bold, dramatic foliage or if you have consistently wet soil conditions. But for those who value native plants, low-maintenance gardening, and the quiet charm of ferns, this little southwestern native is definitely worth considering.

Palmer’s Spleenwort

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Aspleniaceae Newman - Spleenwort family

Genus

Asplenium L. - spleenwort

Species

Asplenium palmeri Maxon - Palmer's spleenwort

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA