North America Native Plant

Ontario Goldenrod

Botanical name: Solidago simplex randii var. ontarioensis

USDA symbol: SOSIO

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to the lower 48 states  

Synonyms: Solidago glutinosa Nutt. var. ontarioensis Ringius (SOGLO)   

Ontario Goldenrod: A Rare Native Treasure Worth Protecting Meet Ontario goldenrod (Solidago simplex randii var. ontarioensis), one of nature’s more elusive native perennials. This isn’t your garden-variety goldenrod – it’s a specialized variety that deserves our attention and respect. If you’re lucky enough to encounter this rare beauty, you’re witnessing ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Ontario Goldenrod: A Rare Native Treasure Worth Protecting

Meet Ontario goldenrod (Solidago simplex randii var. ontarioensis), one of nature’s more elusive native perennials. This isn’t your garden-variety goldenrod – it’s a specialized variety that deserves our attention and respect. If you’re lucky enough to encounter this rare beauty, you’re witnessing something quite special in the native plant world.

What Makes Ontario Goldenrod Special?

Ontario goldenrod is a perennial forb, which simply means it’s an herbaceous plant that comes back year after year without developing woody stems. As a member of the goldenrod family, it shares the characteristic sunny yellow blooms that make these plants so beloved by pollinators and gardeners alike.

This particular variety goes by the scientific name Solidago simplex randii var. ontarioensis, and you might occasionally see it referenced by its synonym, Solidago glutinosa Nutt. var. ontarioensis. Don’t let the fancy names intimidate you – it’s still just a goldenrod at heart!

Where Does It Call Home?

Ontario goldenrod has a remarkably limited native range, found naturally in just two locations: Ontario, Canada, and Michigan in the United States. This restricted distribution is part of what makes it so special – and so rare.

The Rarity Factor: Why This Matters

Here’s where things get serious. Ontario goldenrod carries a Global Conservation Status of S5T3, indicating it’s a plant of conservation concern. This rarity status means that if you’re considering adding it to your garden, you absolutely must source it responsibly. Never collect plants from the wild, and only purchase from reputable native plant nurseries that can guarantee their stock is ethically propagated.

Should You Grow Ontario Goldenrod?

The honest answer? Probably not, unless you’re a serious native plant conservationist with specific experience growing rare species. Here’s why:

  • Its extreme rarity means it’s difficult to source ethically
  • Limited growing information is available for this specific variety
  • It may have very specific habitat requirements that are hard to replicate
  • There are many other native goldenrod species that are easier to grow and more readily available

Better Alternatives for Your Garden

If you’re drawn to the idea of growing native goldenrods (and you should be – they’re fantastic for pollinators!), consider these more common and garden-friendly alternatives:

  • Canada goldenrod (Solidago canadensis)
  • Showy goldenrod (Solidago speciosa)
  • Zigzag goldenrod (Solidago flexicaulis)
  • Gray goldenrod (Solidago nemoralis)

If You Do Encounter Ontario Goldenrod

Should you be fortunate enough to spot Ontario goldenrod in the wild or find it through a specialized conservation nursery, here’s what you should know:

Like most goldenrods, it likely prefers full sun and well-drained soils. It’s a perennial that will return each year, and as a native species, it’s perfectly adapted to local climate conditions in its native range. The bright yellow flowers probably bloom in late summer or early fall, providing crucial late-season nectar for pollinators preparing for winter.

The Bigger Picture

Ontario goldenrod represents something important in the world of native plants: the incredible diversity and specialization that exists in nature. While you might not grow this particular variety in your backyard, knowing about it helps us appreciate the complex web of native species that make up our local ecosystems.

By choosing to plant any native goldenrods in your garden, you’re supporting the broader ecological community that rare species like Ontario goldenrod depend on. You’re creating pollinator habitat, supporting native plant populations, and contributing to biodiversity conservation – even if you’re not growing the rarest species yourself.

The Bottom Line

Ontario goldenrod is a fascinating example of nature’s diversity, but it’s not the right choice for most home gardens. Its rarity, limited availability, and specialized needs make it better left to conservation professionals and specialized botanical gardens. Instead, embrace the wonderful world of common native goldenrods – your local pollinators will thank you, and you’ll still be supporting native plant communities in a meaningful way.

Ontario Goldenrod

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

Solidago L. - goldenrod

Species

Solidago simplex Kunth - Mt. Albert goldenrod

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