North America Non-native Plant

Lobelia Gruina

Botanical name: Lobelia gruina

USDA symbol: LOGR12

Native status: Not native but doesn't reproduce and persist in the wild

The Mysterious Lobelia gruina: A Botanical Enigma If you’ve stumbled across the name Lobelia gruina in your plant research, you might be scratching your head wondering why there’s so little information available about this particular species. You’re not alone! This member of the bellflower family (Campanulaceae) is one of those ...

The Mysterious Lobelia gruina: A Botanical Enigma

If you’ve stumbled across the name Lobelia gruina in your plant research, you might be scratching your head wondering why there’s so little information available about this particular species. You’re not alone! This member of the bellflower family (Campanulaceae) is one of those botanical mysteries that keeps plant enthusiasts guessing.

What We Know (And Don’t Know)

Lobelia gruina belongs to the diverse Lobelia genus, which includes over 400 species worldwide. However, unlike its famous cousins like Cardinal Flower (Lobelia cardinalis) or Great Blue Lobelia (Lobelia siphilitica), this particular species remains largely undocumented in mainstream horticultural literature.

The lack of readily available information about Lobelia gruina could indicate several possibilities:

  • It may be an extremely rare species with very limited natural distribution
  • It could be a regional endemic found only in specific, remote locations
  • The name might be taxonomically outdated or require verification
  • It may simply be understudied by the botanical community

Geographic Distribution: A Question Mark

Unfortunately, the geographic distribution of Lobelia gruina remains unknown. Without clear documentation of where this species naturally occurs, it’s impossible to determine its native range or appropriate growing conditions.

Should You Try to Grow It?

Here’s the honest truth: without reliable information about Lobelia gruina’s growing requirements, native status, or availability, it’s not a plant we can recommend for your garden. The lack of documentation makes it nearly impossible to provide proper care guidance or even verify if it’s commercially available.

Better Lobelia Alternatives

Instead of searching for the elusive Lobelia gruina, consider these well-documented and readily available Lobelia species:

  • Cardinal Flower (Lobelia cardinalis): Stunning red blooms that hummingbirds adore
  • Great Blue Lobelia (Lobelia siphilitica): Beautiful blue spikes perfect for wet areas
  • Pale Spike Lobelia (Lobelia spicata): Delicate white to pale blue flowers

The Takeaway

While Lobelia gruina remains a botanical puzzle, the Lobelia genus offers plenty of other spectacular options for your native garden. Sometimes the most mysterious plants are the ones that remind us how much we still have to discover about the natural world.

If you happen to have reliable information about Lobelia gruina or have encountered it in the wild, consider contributing to botanical databases or contacting local botanical institutions. Every bit of information helps solve these botanical mysteries!

Lobelia Gruina

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

Campanulales

Family

Campanulaceae Juss. - Bellflower family

Genus

Lobelia L. - lobelia

Species

Lobelia gruina Cav. [excluded]

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