North America Native Plant

Balsamroot

Botanical name: Balsamorhiza ×tomentosa

USDA symbol: BATO2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Balsamroot: The Mysterious Hybrid You Probably Shouldn’t Try to Grow If you’ve stumbled across the name Balsamorhiza ×tomentosa while researching native plants, you might be wondering what makes this particular balsamroot special. Well, here’s the thing – this isn’t your typical garden center find, and there’s a very good reason ...

Balsamroot: The Mysterious Hybrid You Probably Shouldn’t Try to Grow

If you’ve stumbled across the name Balsamorhiza ×tomentosa while researching native plants, you might be wondering what makes this particular balsamroot special. Well, here’s the thing – this isn’t your typical garden center find, and there’s a very good reason for that!

What Exactly Is Balsamorhiza ×tomentosa?

Balsamorhiza ×tomentosa is what botanists call a hybrid species – that little × symbol in the name is the giveaway. This means it’s the result of two different Balsamorhiza species crossing in the wild, creating something that’s technically new but incredibly rare. Think of it as nature’s own limited edition plant.

This perennial hybrid is native to the northwestern United States, specifically found in Idaho, Montana, Oregon, Washington, and Wyoming. However, found might be too generous a term – documented occurrences are extremely scarce.

Why This Isn’t Your Next Garden Star

Here’s where I have to be the bearer of disappointing news: Balsamorhiza ×tomentosa is so rare and poorly documented that it’s essentially unavailable for cultivation. We’re talking about a plant that exists more in botanical databases than in actual gardens or even wild populations that you could realistically encounter.

The lack of information about this hybrid extends to pretty much everything a gardener would want to know:

  • Growing conditions? Unknown
  • How big it gets? No reliable data
  • What it looks like in bloom? Very limited documentation
  • How to propagate it? Nobody really knows
  • Where to buy it? Good luck with that!

Better Balsamroot Options for Your Garden

Before you get too bummed out, let me introduce you to some fantastic alternatives that will actually thrive in your garden! The Balsamorhiza genus includes several spectacular species that are much more garden-friendly:

Arrowleaf Balsamroot (Balsamorhiza sagittata) is probably your best bet. This stunning perennial produces cheerful yellow daisy-like flowers in spring and has distinctive arrow-shaped leaves. It’s drought-tolerant, deer-resistant, and absolutely beloved by pollinators.

Deltoid Balsamroot (Balsamorhiza deltoidea) is another excellent choice, particularly for Pacific Northwest gardens. It offers similar sunny blooms but with triangular leaves that give it a unique texture in the landscape.

Why Stick with Common Species?

While it might seem boring to choose the common balsamroots over a rare hybrid, there are some really good reasons to do so:

  • You can actually find them for sale (revolutionary concept, right?)
  • They have proven track records in cultivation
  • There’s plenty of growing information available
  • They provide reliable benefits to local wildlife and pollinators
  • They’re adapted to thrive in garden conditions

The Bottom Line

Balsamorhiza ×tomentosa is one of those plants that’s more interesting as a botanical curiosity than as a practical garden choice. Its extreme rarity and lack of cultivation information make it unsuitable for home gardeners. Instead, embrace the wonderful world of more common balsamroot species – they’ll give you all the native plant benefits you’re looking for, with the added bonus of actually being obtainable!

Sometimes in gardening, as in life, the tried-and-true options are popular for good reasons. Save your energy for tracking down those amazing common balsamroots, and let this mysterious hybrid remain nature’s little secret.

Balsamroot

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

Balsamorhiza Nutt. - balsamroot

Species

Balsamorhiza ×tomentosa Rydb. (pro sp.) [incana × sagittata] - balsamroot

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