Undulate Speedwell: A Mysterious Non-Native with Limited Information
If you’ve stumbled across the name undulate speedwell (Veronica undulata) in your gardening research, you’re not alone in finding limited information about this elusive plant. This non-native species presents quite the puzzle for gardeners and botanists alike, with very little documented information available about its characteristics and cultivation needs.




What We Know About Undulate Speedwell
Veronica undulata belongs to the speedwell family, a group known for their typically small, delicate flowers and herbaceous growth habits. This particular species is classified as an annual or biennial forb, meaning it’s a non-woody plant that completes its life cycle in one or two years.
As a forb, undulate speedwell lacks significant woody tissue above ground and maintains its growing points at or below the soil surface. This growth pattern is typical of many herbaceous wildflowers and garden plants.
Native Status and Geographic Distribution
Here’s where things get interesting (and a bit concerning): Veronica undulata is not native to North America. It’s been introduced and has established populations that reproduce spontaneously in the wild across three states: Alabama, Oregon, and Washington. This scattered distribution pattern across such different climate zones raises questions about the plant’s adaptability and potential for further spread.
The Challenge for Gardeners
If you’re considering adding undulate speedwell to your garden, you’ll face some significant challenges:
- Extremely limited cultivation information available
- Unknown growing requirements and care needs
- Uncertain invasive potential
- Unclear pollinator and wildlife benefits
- Unknown hardiness zones
Why You Might Want to Think Twice
While we can’t definitively call Veronica undulata invasive (since its status is unknown), its non-native status and ability to establish wild populations should give gardeners pause. When you combine this with the lack of cultivation information, it becomes a risky choice for most garden situations.
Better Alternatives: Native Speedwells
Instead of gambling with this mysterious species, consider these well-documented native alternatives that offer similar characteristics:
- American Speedwell (Veronica americana) – Great for wet areas and stream edges
- Thyme-leaved Speedwell (Veronica serpyllifolia) – Perfect for naturalized areas
- Purslane Speedwell (Veronica peregrina) – Excellent for disturbed soil areas
These native speedwells offer known benefits to local ecosystems, documented growing requirements, and established roles in natural plant communities.
If You Encounter Undulate Speedwell
Should you come across what you believe to be Veronica undulata in the wild, consider reporting your sighting to local botanical authorities or extension services. Given the limited documentation of this species, your observation could contribute valuable information to our understanding of its distribution and behavior.
The Bottom Line
While the mystery of undulate speedwell might intrigue plant enthusiasts, it’s not the best choice for most gardens. The combination of its non-native status, unknown cultivation requirements, and potential ecological impacts make it a less-than-ideal garden resident. Stick with well-documented native speedwells that will provide beauty, support local wildlife, and give you the growing guidance you need for success.
Sometimes in gardening, as in life, the unknown isn’t worth the risk – especially when there are so many wonderful, well-understood alternatives available!