North America Native Plant

Casasia

Botanical name: Casasia

USDA symbol: CASAS

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Casasia: Florida’s Hidden Gem for Native Plant Enthusiasts If you’re looking to add some authentic Florida flair to your garden, let me introduce you to casasia – a charming native shrub that deserves a spot in more Sunshine State landscapes. While it might not be as well-known as some flashier ...

Casasia: Florida’s Hidden Gem for Native Plant Enthusiasts

If you’re looking to add some authentic Florida flair to your garden, let me introduce you to casasia – a charming native shrub that deserves a spot in more Sunshine State landscapes. While it might not be as well-known as some flashier natives, this understated beauty has plenty to offer gardeners who appreciate plants with genuine local roots.

What Exactly Is Casasia?

Casasia is a native perennial shrub that calls Florida home. As a true Florida native, it’s perfectly adapted to our unique climate and growing conditions. This multi-stemmed woody plant typically stays manageable in size, usually growing to less than 13-16 feet tall, though most specimens you’ll encounter will be considerably smaller and more compact.

Where You’ll Find It Growing Wild

This native beauty is exclusively found in Florida within the continental United States, making it a true regional specialty. It’s naturally adapted to our subtropical climate and has evolved alongside our local ecosystem for thousands of years.

Why Your Garden Will Love Casasia

There are several compelling reasons to consider adding casasia to your native plant palette:

  • Authentic native credentials: It’s a genuine Florida native, supporting local ecosystems
  • Low maintenance appeal: Once established, native plants typically require less water and care
  • Perfect size: As a shrub, it provides structure without overwhelming smaller gardens
  • Year-round presence: Being perennial, it maintains its presence through all seasons

Ideal Garden Settings

Casasia works beautifully in several landscape scenarios:

  • Native plant gardens focused on authentic Florida species
  • Naturalistic landscapes that mimic local ecosystems
  • Mixed shrub borders where you want reliable, low-maintenance plants
  • Areas where you’re trying to support local wildlife and pollinators

Growing Conditions and Care

Like most Florida natives, casasia is likely quite adaptable once you understand its preferences. While specific growing requirements aren’t widely documented, you can generally expect it to thrive in conditions similar to its natural habitat:

  • Climate: Best suited for South Florida’s warm, subtropical conditions
  • Hardiness: Expect it to be cold-sensitive, likely suited for USDA zones 10-11
  • Soil: Probably prefers well-draining soil, as most Florida natives do
  • Water: Once established, should be relatively drought-tolerant

Planting and Establishment Tips

Since casasia isn’t commonly available in mainstream nurseries, you’ll want to:

  • Source plants from reputable native plant nurseries or specialized growers
  • Plant during Florida’s cooler months (October through March) for best establishment
  • Water regularly during the first year while the root system develops
  • Mulch around the base to retain moisture and suppress weeds
  • Be patient – native plants often take time to establish but reward you with longevity

The Bottom Line

Casasia represents the kind of authentic native plant that serious Florida gardeners should consider. While it may not be the showiest plant in your garden, it offers the satisfaction of growing something truly local and ecologically meaningful. If you can track down this somewhat elusive native, you’ll be adding a genuine piece of Florida’s natural heritage to your landscape.

Just remember that since casasia isn’t widely cultivated, you may need to do some detective work to find reliable sources and growing information. Connect with local native plant societies, botanical gardens, or specialized nurseries – they’re often the best resources for discovering and successfully growing Florida’s lesser-known native treasures.

Casasia

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Rubiales

Family

Rubiaceae Juss. - Madder family

Genus

Casasia A. Rich. - casasia

Species

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