North America Native Plant

Mare’s-tail

Botanical name: Hippuris

USDA symbol: HIPPU

Life cycle: perennial

Habit: forb

Native status: Native to Alaska âš˜ Native to Canada âš˜ Native to Greenland âš˜ Native to the lower 48 states âš˜ Native to St. Pierre and Miquelon  

Mare’s-Tail: The Understated Native Aquatic That Deserves a Second Look If you’re looking to add some authentic North American charm to your water garden or wetland area, let me introduce you to mare’s-tail (Hippuris). This humble native perennial might not win any beauty contests, but it’s got character and plays ...

Mare’s-Tail: The Understated Native Aquatic That Deserves a Second Look

If you’re looking to add some authentic North American charm to your water garden or wetland area, let me introduce you to mare’s-tail (Hippuris). This humble native perennial might not win any beauty contests, but it’s got character and plays an important ecological role that makes it worth considering for the right garden setting.

What Exactly Is Mare’s-Tail?

Mare’s-tail is a perennial forb that’s perfectly adapted to life in and around water. Unlike many flashy garden plants, this native species keeps things simple with its distinctive whorled leaves arranged in neat tiers around unbranched stems. Think of it as nature’s version of a living bottle brush – practical, purposeful, and quietly attractive in its own understated way.

As a forb, mare’s-tail lacks the woody tissue you’d find in shrubs or trees, but don’t let that fool you into thinking it’s delicate. This tough little plant has been thriving across North America’s wetlands for thousands of years.

Where Mare’s-Tail Calls Home

One of the most impressive things about mare’s-tail is its incredible native range. This plant truly gets around! It’s native to Alaska, Canada (including Greenland), all of the lower 48 states, and even St. Pierre and Miquelon. You’ll find it growing naturally from Alberta and British Columbia all the way to Maine and Massachusetts, and from the Arctic territories down to Arizona and New Mexico.

This extensive distribution tells us something important: mare’s-tail is incredibly adaptable and hardy, thriving in USDA zones 2 through 8.

Should You Plant Mare’s-Tail in Your Garden?

The honest answer? It depends on what kind of garden you’re creating. Mare’s-tail isn’t the plant for traditional flower beds or drought-tolerant landscapes. But if you’re working with any of these scenarios, it might be perfect:

  • You have a pond, water garden, or bog garden
  • You’re creating a rain garden or bioswale
  • You’re involved in wetland restoration
  • You want to support native ecosystems in wet areas
  • You appreciate subtle, naturalistic plantings over showy displays

Growing Mare’s-Tail Successfully

Here’s where mare’s-tail gets interesting – it’s actually quite easy to grow once you understand its basic needs. The key is remembering that this is fundamentally an aquatic plant.

Perfect Growing Conditions

Mare’s-tail thrives in shallow water up to 12 inches deep, though it can also handle very wet, boggy soils. Give it full sun to partial shade, and it’ll be quite content. The plant prefers consistently wet conditions – think of it as the opposite of those drought-tolerant plants everyone talks about.

Planting and Care Tips

  • Plant in spring after the last frost
  • If adding to a pond, place in containers or plant directly in shallow areas
  • Ensure consistent moisture – never let it dry out
  • Very low maintenance once established
  • May spread naturally in ideal conditions
  • Cut back dead foliage in late fall or early spring

What Mare’s-Tail Brings to Your Garden

While mare’s-tail won’t attract clouds of butterflies (it’s wind-pollinated), it serves other important functions. It helps filter water, provides structure in naturalistic plantings, and supports the overall health of wetland ecosystems. Its quiet presence adds authenticity to native plant gardens and water features.

The plant typically grows 6-24 inches tall with a narrow, upright habit. Don’t expect dramatic seasonal color changes – mare’s-tail is all about subtle, consistent green presence throughout the growing season.

The Bottom Line

Mare’s-tail isn’t for every garden or every gardener. If you’re looking for spectacular blooms or plants that thrive in regular garden beds, keep looking. But if you’re creating naturalistic water features, restoring wetland areas, or simply want to support native ecosystems with an authentic North American species, mare’s-tail deserves serious consideration.

This unassuming native has been quietly doing its job across the continent for millennia. Sometimes the most valuable garden plants are the ones that work behind the scenes, supporting the bigger ecological picture while asking for very little in return.

Mare’s-tail

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

Callitrichales

Family

Hippuridaceae Vest - Mare's-tail family

Genus

Hippuris L. - mare's-tail

Species

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