North America Native Plant

Quillwort

Botanical name: Isoetes ×dodgei

USDA symbol: ISDO

Life cycle: perennial

Habit: grass

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

Dodge’s Quillwort: A Hidden Gem for Water Gardens If you’re looking to add something truly unique to your water garden or wetland landscape, meet Dodge’s quillwort (Isoetes ×dodgei) – a fascinating native plant that’s as intriguing as its name suggests. This little-known aquatic perennial might not win any beauty contests, ...

Dodge’s Quillwort: A Hidden Gem for Water Gardens

If you’re looking to add something truly unique to your water garden or wetland landscape, meet Dodge’s quillwort (Isoetes ×dodgei) – a fascinating native plant that’s as intriguing as its name suggests. This little-known aquatic perennial might not win any beauty contests, but it offers something special for gardeners interested in authentic wetland ecosystems.

What Exactly Is Dodge’s Quillwort?

Don’t let the name fool you – quillworts aren’t actually related to grasses, despite their grass-like appearance. Dodge’s quillwort is a unique hybrid species that belongs to an ancient plant family. With its distinctive quill-shaped leaves emerging from shallow water or saturated soil, this perennial creates an understated but authentic wetland atmosphere.

As a graminoid (grass-like plant), it forms small clusters of narrow, upright leaves that give it a minimalist, architectural quality that works beautifully in contemporary water garden designs.

Where Does It Call Home?

This native North American species has a relatively limited range, naturally occurring across northeastern regions including Ontario and Quebec in Canada, and several northeastern U.S. states: New Hampshire, New Jersey, New York, Pennsylvania, and Vermont.

Why Consider Growing Dodge’s Quillwort?

Here’s why this unassuming plant deserves a spot in your wetland garden:

  • True native status: It’s authentically native to northeastern North America, making it perfect for regional native plant gardens
  • Low maintenance: Once established in proper conditions, it requires minimal care
  • Wetland specialist: Ideal for bog gardens, shallow water features, or wetland restoration projects
  • Unique texture: Adds an interesting architectural element with its upright, quill-like form
  • Ecological value: Contributes to authentic wetland ecosystems

The Perfect Growing Conditions

Dodge’s quillwort is classified as an obligate wetland plant across all its native regions, which means it almost always occurs in wetlands. Here’s what it needs to thrive:

  • Water requirements: Consistently wet soil or shallow standing water
  • Light: Full sun to partial shade
  • Soil: Saturated, boggy conditions
  • USDA Hardiness Zones: Approximately zones 3-7
  • pH: Tolerates a range of wetland soil conditions

Where It Fits in Your Landscape

This specialized plant isn’t for every garden, but it’s perfect for:

  • Bog gardens and wetland areas
  • Edges of natural ponds or water features
  • Rain gardens with consistently moist conditions
  • Native plant gardens in northeastern regions
  • Wetland restoration projects

Growing and Care Tips

Successfully growing Dodge’s quillwort is all about understanding its wetland nature:

  • Site selection: Choose locations that stay consistently wet year-round
  • Planting: Best planted in spring in shallow water or saturated soil
  • Maintenance: Very low maintenance once established in proper conditions
  • Propagation: Reproduces via spores rather than traditional seeds
  • Winter care: Hardy perennial that tolerates freezing conditions when dormant

Is This Plant Right for You?

Dodge’s quillwort is definitely a specialist plant. It’s perfect if you:

  • Have a water garden, bog garden, or consistently wet area
  • Are creating authentic northeastern wetland habitats
  • Appreciate unique, architectural plant forms
  • Want to support native plant diversity

However, skip this one if you have typical garden conditions with well-draining soil – it simply won’t survive without constant moisture.

The Bottom Line

While Dodge’s quillwort may not be the showiest plant in your garden, it offers something increasingly rare: authenticity. For water gardeners and wetland enthusiasts in the Northeast, this native hybrid represents a chance to grow something truly unique while supporting regional biodiversity. Just remember – wet feet are absolutely essential for success!

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Atlantic and Gulf Coastal Plain

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Eastern Mountains and Piedmont

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Northcentral & Northeast

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Quillwort

Classification

Group

Quillwort

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Lycopodiophyta - Lycopods

Subdivision
Class

Lycopodiopsida

Subclass
Order

Isoetales

Family

Isoetaceae Dumort. - Quillwort family

Genus

Isoetes L. - quillwort

Species

Isoetes ×dodgei A.A. Eaton (pro sp.) [riparia × tenella] - quillwort

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