North America Non-native Plant

Speckled Spur Flower

Botanical name: Plectranthus ciliatus

USDA symbol: PLCI6

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

Speckled Spur Flower: The Mystery Plant That’s Hard to Pin Down Ever stumble across a plant name that sounds absolutely delightful but leaves you scratching your head when you try to learn more about it? Meet the speckled spur flower (Plectranthus ciliatus) – a plant that’s as elusive as it ...

Speckled Spur Flower: The Mystery Plant That’s Hard to Pin Down

Ever stumble across a plant name that sounds absolutely delightful but leaves you scratching your head when you try to learn more about it? Meet the speckled spur flower (Plectranthus ciliatus) – a plant that’s as elusive as it is intriguingly named.

What We Know (And What We Don’t)

Here’s the thing about Plectranthus ciliatus: it’s what you might call a ghost plant in the gardening world. While it has the charming common name of speckled spur flower, reliable information about this particular species is surprisingly scarce. This isn’t uncommon in the plant world – sometimes species names exist in databases or old literature without much modern documentation.

The Plectranthus Family Connection

What we do know is that this plant belongs to the Plectranthus genus, which is part of the mint family. The genus includes hundreds of species, many of which are popular in gardens worldwide. However, without specific information about P. ciliatus, we can’t make assumptions about its characteristics based on its relatives.

Geographic Distribution: A Mystery

The native range and geographic distribution of Plectranthus ciliatus remain unclear from available sources. This makes it difficult to determine whether it would be considered a native plant in any particular region.

Should You Try to Grow It?

Here’s where things get tricky for gardeners. Without reliable information about growing conditions, hardiness zones, or even basic care requirements, attempting to grow Plectranthus ciliatus would be quite the gardening adventure – and not necessarily one we’d recommend for most gardeners.

If you’re determined to explore this mysterious plant, here are some considerations:

  • Verify the plant’s identity through reputable botanical sources
  • Research whether the plant is actually available from legitimate nurseries
  • Consider whether you might be looking for a different, better-documented Plectranthus species
  • Explore well-known alternatives in the Plectranthus genus that offer similar appeal

Better Alternatives to Consider

If the name speckled spur flower caught your attention, you might want to explore some well-documented Plectranthus species instead. Many members of this genus offer beautiful foliage, interesting flowers, and are much easier to research and grow successfully.

The Bottom Line

Sometimes in gardening, we encounter plants that remain mysteries despite our best efforts to learn about them. Plectranthus ciliatus appears to be one of those cases. While the name is certainly appealing, the lack of reliable growing information makes it a challenging choice for most gardeners.

If you’re passionate about growing unique or lesser-known plants, consider focusing your energy on well-documented species that can provide you with the growing success and garden beauty you’re seeking. After all, there are plenty of amazing plants out there with proven track records that are just waiting to find their way into your garden!

Speckled Spur Flower

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

Lamiales

Family

Lamiaceae Martinov - Mint family

Genus

Plectranthus L'Hér. - plectranthus

Species

Plectranthus ciliatus E. Mey. - speckled spur flower

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