North America Non-native Plant

Waterlily

Botanical name: Nymphaea ×marliacea

USDA symbol: NYMA2

Life cycle: perennial

Habit: forb

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Waterlily (Nymphaea ×marliacea): A Stunning Addition to Your Water Garden If you’ve ever dreamed of creating a serene water garden that looks like something out of Monet’s paintings, waterlilies might be exactly what you’re looking for. The Nymphaea ×marliacea, commonly known as waterlily, brings that classic pond elegance with its ...

Waterlily (Nymphaea ×marliacea): A Stunning Addition to Your Water Garden

If you’ve ever dreamed of creating a serene water garden that looks like something out of Monet’s paintings, waterlilies might be exactly what you’re looking for. The Nymphaea ×marliacea, commonly known as waterlily, brings that classic pond elegance with its floating leaves and show-stopping blooms that seem to dance on the water’s surface.

What Makes This Waterlily Special?

This particular waterlily is actually a hybrid – think of it as the best of both worlds from its parent plants. As a perennial, it’ll come back year after year, greeting you each growing season with renewed beauty. The plant grows as what botanists call a forb, which is just a fancy way of saying it’s an herbaceous plant without woody stems.

What really sets this waterlily apart is its stunning aesthetic appeal. You’ll be treated to large, gorgeous flowers that can come in various colors – from pristine whites to soft pinks, sunny yellows, and rich reds. These blooms sit prettily atop broad, circular floating leaves that create natural lily pads on your pond’s surface.

Where Does It Come From?

Here’s where things get interesting – Nymphaea ×marliacea isn’t actually native to North America. It’s been introduced and has established itself in the wild, currently found growing naturally in Missouri. As a non-native species, it reproduces on its own and tends to persist without human intervention.

Is This the Right Plant for Your Garden?

If you’re considering adding this waterlily to your landscape, here are some things to keep in mind:

Perfect For:

  • Water gardens and ornamental ponds
  • Creating a focal point in aquatic landscapes
  • Adding classic elegance to backyard water features
  • Zones 4-10 (depending on the specific variety)

Growing Conditions

This waterlily is pretty particular about its living situation – but in a good way! It’s classified as an Obligate Wetland plant, which means it absolutely loves water and almost always occurs in wetland environments. Here’s what it needs to thrive:

  • Full sun exposure (at least 6 hours of direct sunlight)
  • Still or very slow-moving water
  • Water depth of 12-18 inches over the planting container
  • Rich, aquatic soil or specialized pond planting medium

Planting and Care Tips

Growing waterlilies might seem intimidating, but it’s actually quite straightforward once you know the basics:

  • Plant in a wide, shallow container designed for aquatic plants
  • Use heavy clay soil or aquatic planting mix
  • Submerge the container so there’s 12-18 inches of water above it
  • Feed with aquatic plant fertilizer tablets during the growing season
  • Remove spent blooms and yellowing leaves regularly
  • In colder zones, move containers to deeper water or indoors for winter

Wildlife and Pollinator Benefits

While we don’t have extensive data on this specific hybrid’s wildlife benefits, waterlilies in general are known to attract pollinators like bees to their blooms. The floating leaves also provide shade and cover for fish and other aquatic life in your pond.

Something to Consider

Since this is a non-native species, you might also want to explore native alternatives that could provide similar beauty while supporting local ecosystems. Consider looking into native waterlilies or other aquatic plants that are indigenous to your region – they’ll be perfectly adapted to your local conditions and will provide the best support for native wildlife.

The Bottom Line

Nymphaea ×marliacea can create a absolutely stunning focal point in water gardens and ponds. While it’s not native to North America, it’s not currently listed as invasive or problematic. If you’re dreaming of that perfect water garden moment – with elegant blooms floating serenely on the surface – this waterlily could be just the ticket. Just remember to plant responsibly and consider native alternatives that might offer similar beauty while supporting your local ecosystem.

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

Eastern Mountains and Piedmont

OBL

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

Waterlily

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Magnoliidae

Order

Nymphaeales

Family

Nymphaeaceae Salisb. - Water-lily family

Genus

Nymphaea L. - waterlily

Species

Nymphaea ×marliacea Marliac [alba × mexicana] - waterlily

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