Benefits Of Using Native Aquatic Plants In North Dakota Water Features

Native aquatic plants are a powerful, low-maintenance tool for improving the ecological function, aesthetics, and resilience of backyard ponds, retention basins, and naturalized watercourses in North Dakota. When selected and managed properly, native species provide water quality benefits, habitat for wildlife, erosion control, and long-term cost savings. This article explains why native plants matter in the North Dakota climate, describes species and design strategies that work well in the region, and gives practical, actionable guidance for planting and maintenance.

Why native aquatic plants are preferable in North Dakota

Native aquatic plants are species that evolved in the local climate and hydrology. In North Dakota, that means plants adapted to temperature extremes, seasonal ice cover, variable water levels, and the prairie-parkland landscape. Using native plants in water features offers several distinct advantages over non-native alternatives.
Native plants are adapted to local cold tolerance and seasonal cycles. They are more likely to survive winter ice, dormant periods, and spring drawdown without intensive intervention.
Native plants support local wildlife. Birds, waterfowl, amphibians, fish, and native pollinators rely on local plants for food, breeding habitat, and shelter.
Native plants reduce the risk of invasives. Introducing non-native species can lead to spread beyond the garden into natural wetlands and lakes. Natives help maintain ecosystem balance.
Native plants often need less chemical and mechanical maintenance. Because they are adapted to local soils and nutrients, they tend to outperform landscaped exotics while requiring fewer inputs.

Key ecological benefits

Native aquatic plants deliver measurable ecological services that improve the health and resilience of water features.

Water quality improvement

Submerged and emergent native plants take up nutrients such as nitrogen and phosphorus that would otherwise fuel algal blooms. Rooted plants also trap suspended sediments, reducing turbidity and allowing sunlight to reach the right depth for beneficial submerged vegetation.

• Nutrient uptake: Rooted emergent and submerged plants absorb dissolved nutrients and store them in biomass, which can be removed by periodic harvesting if necessary.
• Sediment stabilization: Fibrous root systems of sedges, rushes, and bulrushes bind shorelines and shallow beds, preventing erosion and reducing sediment transport downstream.

Habitat creation

Native plants provide food and shelter across life stages for many species.

• Waterfowl and shorebirds use emergent beds as nesting or foraging habitat.
• Amphibians and invertebrates use submerged stems and leaf litter for breeding and refuge.
• Fish use vegetated shallows for spawning and foraging.

Thermal and oxygen regulation

Vegetation shades surface water, moderating temperature spikes in summer. Submerged plants release oxygen through photosynthesis and create microhabitats that stabilize dissolved oxygen and temperature profiles for aquatic life.

North Dakota native species to consider and their functions

Selecting the right species for the right place is critical. The following list focuses on plants native to North Dakota or well-established native-range species suitable for the region. Choose species by function (emergent, submergent, floating) and by planting depth.

• Emergent species (shoreline and shallow edge, 0 to 18 inches typical)
• Cattail (Typha latifolia): Excellent for nutrient uptake, dense stands for wildlife cover. Use in controlled masses, because it spreads by rhizomes.
• Hardstem bulrush (Schoenoplectus acutus) and softstem bulrush (Schoenoplectus tabernaemontani): Good for shoreline stabilization and sediment trapping.
• Arrowhead (Sagittaria latifolia): Attractive flowering emergent that provides tubers eaten by wildlife.
• Narrowleaf and common rushes (Juncus spp.) and sedges (Carex spp.): Useful in shoreline buffers; many Carex species tolerate seasonal drying.
• Submerged species (deeper water, 12 inches to several feet)
• Elodea (Elodea canadensis): A hardy submerged oxygenator that supports invertebrates and fish.
• Richardson pondweed (Potamogeton richardsonii) and other native pondweeds (Potamogeton spp.): Provide food and structure for fish and waterfowl.
• Northern water-milfoil (Myriophyllum sibiricum): Native milfoil can be a good structural plant if not allowed to overspread.
• Floating and floating-leaved species
• White water lily (Nymphaea odorata): Native, hardy in cold climates, offers shade and habitat for invertebrates and amphibians. Plant in appropriate depth to overwinter rhizomes.
• Duckweed (Lemna minor): Native and effective at capturing nutrients; beware that it can form dense mats and require management.

Design and planting strategies for success

Proper placement and planting technique ensure native plants deliver the intended benefits without becoming nuisances.

Match species to depth and exposure

Plant emergents in shallow margins where stems can root in muck and be periodically exposed to air. Submerged plants need sufficient depth to avoid winterkill but shallow enough for light penetration. Use the following general depth guidance as a starting point, then adjust by species and local conditions.

• Emergent margin: 0 to 18 inches.
• Floating and shallow-submerged: 12 to 36 inches.
• Deep-submerged beds: 3 feet or more for species that avoid ice scouring.

Create zoned plantings

Design water features in functional zones:

• Buffer zone: A 6 to 10 foot wide band of native shoreline plants (rushes, sedges, wildflowers) to intercept runoff, filter nutrients, and provide habitat.
• Emergent fringe: Dense planting of cattails, bulrushes, and arrowhead along shallow shelves for stabilization.
• Submerged meadow: Patches or beds of submerged oxygenators and pondweeds to support fish and reduce algae.
• Open water and floating-leaf islands: Water lilies and floating plants to shade and reduce surface nutrients.

Planting technique

• Use containers or planting baskets for emergent and floating-leaved species to control spread. Use heavy substrate (clay-loam) to anchor rhizomes and prevent floating.
• Plant plugs or rhizome sections at appropriate depths; avoid planting deep-water lilies too shallow–give rhizomes the recommended depth for the cultivar.
• For submerged plants, anchor bundles with weights or use planted pots staked in place until established.

Practical maintenance and management

Native plantings are lower maintenance than ornamental exotics, but they still need seasonal attention.

• Monitor spread: Some natives, like cattails and Elodea, can dominate. Thin stands by cutting or harvesting biomass in late summer to reduce seed set and limit spread.
• Winter considerations: Many submerged plants can survive under ice; ensure adequate depth to prevent complete freezing to the bottom. Remove floating debris in early spring to allow light penetration for submerged regrowth.
• Nutrient management: Reduce upstream nutrient inputs (fertilizers, failing septic systems, lawn runoff) to prevent mass algal blooms that can outcompete desired plants.
• Control invasive species: Watch for non-native invasives such as Eurasian watermilfoil (Myriophyllum spicatum) or curly-leaf pondweed. Remove by hand when small; report and manage aggressive invasives promptly to avoid large-scale eradication later.

Practical species selection scenarios

Here are example plant palettes for common North Dakota water feature goals.

• Wildlife-focused backyard pond (small, 6 to 12 ft wide shallow margins)
• Emergent: Arrowhead (Sagittaria latifolia), softstem bulrush (Schoenoplectus tabernaemontani)
• Submerged: Pondweed (Potamogeton richardsonii), Elodea canadensis
• Floating-leaf: White water lily (Nymphaea odorata)
• Stormwater retention or constructed wetland
• Emergent: Cattail (Typha latifolia) in deeper nutrient traps, hardstem bulrush (Schoenoplectus acutus) for shallower shelves
• Buffer: Native sedges (Carex spp.) and native prairie forbs upslope to reduce runoff
• Aesthetic naturalized pond with fish
• Emergent: Mixed band of bulrushes and rushes for edge habitat
• Submerged: Native pondweeds and milfoil in patches for fish cover
• Floating: Scattered water lilies for shade and visual interest

Sourcing and regulatory considerations

Buy plants from reputable native-plant nurseries that guarantee local provenance and do not sell hybrids or known invasives. Avoid moving plants or water between bodies of water to prevent spreading invasive species or pathogens.
Check with local conservation districts or extension services for any regulations or recommended practices for planting in wetlands, lakes, or public waters. In North Dakota, some shoreline activities may require permits or coordination with state agencies when altering wetlands or public waters.

Final practical takeaways

• Prioritize native species adapted to North Dakota winters and seasonal water fluctuations to maximize survival and ecological benefits.
• Design water features with zones: buffer, emergent fringe, submerged meadow, and open water to get multiple functions from the planting.
• Plant to the correct depth and use containers for spreading species to keep them contained.
• Monitor and manage biomass and invasive incursions annually; periodic harvesting helps control nutrients and spread.
• Source plants responsibly and coordinate with local conservation professionals when working near natural wetlands or public waters.

Using native aquatic plants is an investment in long-term ecological function and resilience. With thoughtful species selection, zoning, and modest maintenance, native plants will reduce maintenance costs, improve water quality, and create rich habitat for North Dakota wildlife while giving water features a natural, enduring beauty.