North America Native Plant

Rough Coneflower

Botanical name: Rudbeckia grandiflora var. alismifolia

USDA symbol: RUGRA

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Rudbeckia alismifolia Torr. & A. Gray (RUAL16)   

Rough Coneflower: A Lesser-Known Native Beauty for Southern Gardens If you’re looking to add authentic native charm to your garden, you might want to get acquainted with rough coneflower (Rudbeckia grandiflora var. alismifolia). While this particular variety might not be as famous as its black-eyed Susan cousins, it’s a genuine ...

Rough Coneflower: A Lesser-Known Native Beauty for Southern Gardens

If you’re looking to add authentic native charm to your garden, you might want to get acquainted with rough coneflower (Rudbeckia grandiflora var. alismifolia). While this particular variety might not be as famous as its black-eyed Susan cousins, it’s a genuine native treasure that deserves a spot in more Southern gardens.

What Makes This Plant Special?

Rough coneflower var. alismifolia is a herbaceous perennial that belongs to the beloved Rudbeckia family. You might also see it listed under its synonym Rudbeckia alismifolia in some older references. As a forb (that’s garden-speak for a non-woody flowering plant), it brings that classic daisy-like charm we all love, but with its own unique personality.

Where Does It Call Home?

This native beauty has deep roots in the American South, naturally occurring across Arkansas, Kentucky, Louisiana, Mississippi, and Texas. It’s perfectly adapted to the climate and growing conditions of these regions, which means it should thrive in your garden with less fuss than many non-native alternatives.

Why Consider Adding It to Your Garden?

Here’s the thing about native plants – they’re like that friend who just gets your local climate. Rough coneflower var. alismifolia has spent countless generations adapting to Southern conditions, making it a smart choice for gardeners who want beautiful results without the constant babying that some exotic plants require.

As a perennial, this plant is in it for the long haul. Once established, you can count on it returning year after year, gradually building a stronger presence in your garden. That’s the kind of reliable performance that makes gardeners smile.

The Growing Reality Check

Here’s where I need to be honest with you – specific growing information for this particular variety is surprisingly scarce. While we know it’s part of the rough coneflower family and shares many characteristics with its relatives, detailed cultivation guides for var. alismifolia specifically are hard to come by in horticultural literature.

What we do know is that as a member of the Rudbeckia family, it likely appreciates:

  • Full sun to partial shade conditions
  • Well-draining soil
  • Moderate water needs once established
  • The general hardiness that Rudbeckias are known for

A Word of Caution for the Enthusiastic Gardener

Because specific information about this variety is limited, you might want to start small if you’re interested in growing it. Try sourcing plants or seeds from native plant societies or specialty nurseries that focus on regional flora. These sources are more likely to have accurate information about the plant’s specific needs and characteristics.

The Bottom Line

Rough coneflower var. alismifolia represents that wonderful intersection of native plant gardening and botanical curiosity. While it may not have the extensive growing guides of more popular varieties, its native status and perennial nature make it an intriguing choice for gardeners who want to support local ecosystems while adding something a bit different to their landscape.

If you’re drawn to native plants and don’t mind a little gardening adventure, this lesser-known variety might just be the unique addition your garden has been waiting for. Just remember to source it responsibly and be prepared to learn alongside your plant – sometimes the best gardening experiences come from these collaborative growing journeys.

Rough Coneflower

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Rudbeckia L. - coneflower

Species

Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC. - rough coneflower

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