Native Plants

Ontario Goldenrod

Solidago simplex randii var. ontarioensis

USDA symbol: SOSIO

perennial forb

Canada: native
Lower 48 states: native

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. ...

Ontario Goldenrod may be listed as rare in your area.
Global Conservation Status

Status: S5T3 | Secure: At low or no risk of extinction in the area due to an extensive range, abundant populations, and with little to no concern of 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.

  • Species observed
  • No observations

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.

Solidago simplex randii var. ontarioensis is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Solidago simplex randii var. ontarioensis is also known as:

Solidago glutinosa var. ontarioensis | USDA symbol: SOGLO

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
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

Subspecies: Solidago simplex Kunth ssp. randii (Porter) Ringius - Rand's goldenrod
Variety: Solidago simplex Kunth ssp. randii (Porter) Ringius var. ontarioensis (Ringius) Ringius - Ontario goldenrod

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