North America Non-native Plant

Spotted Snapweed

Botanical name: Impatiens balsamina

USDA symbol: IMBA

Life cycle: annual

Habit: forb

Native status: Non-native, reproduces and persists in the wild in the lower 48 states âš˜ Non-native, reproduces and persists in the wild in Pacific Basin excluding Hawaii âš˜ Non-native, reproduces and persists in the wild in Puerto Rico  

Spotted Snapweed: A Colorful Annual with Old-World Charm If you’re looking for a splash of vibrant color in your garden, spotted snapweed (Impatiens balsamina) might catch your eye with its cheerful blooms and distinctive spotted petals. This annual flower has been brightening gardens for generations, though it comes with its ...

Spotted Snapweed: A Colorful Annual with Old-World Charm

If you’re looking for a splash of vibrant color in your garden, spotted snapweed (Impatiens balsamina) might catch your eye with its cheerful blooms and distinctive spotted petals. This annual flower has been brightening gardens for generations, though it comes with its own unique story and growing requirements.

What is Spotted Snapweed?

Spotted snapweed is a non-native annual flower that originally hails from India and Southeast Asia. Despite its exotic origins, this hardy little plant has made itself at home across much of the United States, establishing populations in 21 states from Alabama to Wisconsin, plus several U.S. territories.

As a forb (essentially a non-woody flowering plant), spotted snapweed lacks the woody stems of shrubs and trees, instead growing as a tender annual that completes its entire life cycle in a single growing season. You’ll find it thriving in upland areas rather than wetlands, preferring well-drained soils across most regions.

Why Gardeners Choose Spotted Snapweed

There’s something undeniably charming about spotted snapweed’s old-fashioned appeal. Here’s what draws gardeners to this annual:

  • Eye-catching flowers in pink, purple, white, or red, often with distinctive spots or stripes
  • Reliable blooming throughout the growing season
  • Easy to grow from seed
  • Attracts beneficial pollinators like bees and butterflies
  • Perfect for cottage garden aesthetics

Where Spotted Snapweed Shines in Your Garden

Spotted snapweed works beautifully in several garden settings:

  • Cottage gardens: Its informal, cheerful blooms fit perfectly with the relaxed cottage garden style
  • Annual borders: Use it to fill gaps between perennials or create colorful seasonal displays
  • Container gardens: Great for pots, window boxes, and hanging baskets
  • Cutting gardens: The flowers make lovely additions to informal bouquets

Growing Spotted Snapweed Successfully

The good news is that spotted snapweed is refreshingly easy to grow. Here’s what you need to know:

Growing Conditions

  • Light: Full sun to partial shade (morning sun with afternoon shade works well)
  • Soil: Well-draining soil of average fertility
  • Water: Moderate moisture – not too wet, not bone dry
  • Zones: Can be grown as an annual in USDA zones 2-11

Planting and Care Tips

  • Direct sow seeds in spring after the last frost date
  • Seeds germinate best in warm soil
  • Space plants according to expected mature size
  • Deadhead spent flowers to encourage continued blooming
  • Water regularly during dry spells, but avoid overwatering
  • No special fertilization needed in average garden soil

Things to Consider

While spotted snapweed can be a delightful addition to gardens, it’s worth noting that as a non-native species, it can self-seed and establish in natural areas. The plant reproduces readily on its own and has naturalized across many states. Though not currently listed as invasive, responsible gardeners might want to deadhead flowers before they set seed or consider native alternatives.

Native Alternatives to Consider

If you’re interested in supporting local ecosystems while still enjoying colorful annual flowers, consider these native alternatives:

  • Wild bergamot (Monarda fistulosa): Attracts butterflies and bees
  • Purple coneflower (Echinacea purpurea): Long-blooming perennial with pollinator appeal
  • Black-eyed Susan (Rudbeckia hirta): Cheerful yellow blooms all season
  • Wild columbine (Aquilegia canadensis): Delicate, unique flowers

The Bottom Line

Spotted snapweed offers gardeners an easy-to-grow annual with charming, old-fashioned appeal and reliable color throughout the season. While it’s not native to North America, it can certainly have a place in cottage gardens, annual beds, and containers. Just be mindful of its self-seeding nature and consider incorporating native plants alongside or instead of non-native species to support local wildlife and ecosystems.

Whether you choose spotted snapweed or opt for native alternatives, the most important thing is creating a garden that brings you joy while being mindful of its impact on the broader environment.

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

UPL

Obligate Upland - Plants with this status almost never occurs in wetlands

Caribbean

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Eastern Mountains and Piedmont

UPL

Obligate Upland - Plants with this status almost never occurs in wetlands

Great Plains

UPL

Obligate Upland - Plants with this status almost never occurs in wetlands

Midwest

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Northcentral & Northeast

UPL

Obligate Upland - Plants with this status almost never occurs in wetlands

Spotted Snapweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Geraniales

Family

Balsaminaceae A. Rich. - Touch-me-not family

Genus

Impatiens L. - touch-me-not

Species

Impatiens balsamina L. - spotted snapweed

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