North America Native Plant

Laceflower

Botanical name: Ptilimnium nuttallii

USDA symbol: PTNU

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Discopleura nuttallii DC. (DINU3)   

Laceflower: A Delicate Native Annual for Wet Gardens If you’re looking for a charming native plant that brings delicate beauty to moisture-loving garden spaces, laceflower (Ptilimnium nuttallii) might just be the perfect addition to your landscape. This graceful annual forb offers airy texture and subtle white blooms that dance in ...

Laceflower: A Delicate Native Annual for Wet Gardens

If you’re looking for a charming native plant that brings delicate beauty to moisture-loving garden spaces, laceflower (Ptilimnium nuttallii) might just be the perfect addition to your landscape. This graceful annual forb offers airy texture and subtle white blooms that dance in the breeze, making it an excellent choice for gardeners who appreciate understated elegance.

What Makes Laceflower Special

Laceflower earns its common name from the delicate, lace-like appearance of its small white flowers, which bloom in umbrella-shaped clusters called umbels. The plant’s fine, feathery foliage creates an ethereal quality that adds wonderful textural contrast to bolder garden plants. As an annual forb—meaning it’s a non-woody herbaceous plant that completes its life cycle in one growing season—laceflower brings seasonal interest without becoming a permanent landscape commitment.

Native Credentials and Where It Grows

This lovely plant is a true native of the lower 48 states, with its natural range spanning across the south-central and southeastern regions. You’ll find wild populations thriving in Alabama, Arkansas, Illinois, Kansas, Kentucky, Louisiana, Mississippi, Missouri, Oklahoma, Tennessee, and Texas. In the wild, laceflower typically grows in wetland areas and locations with consistently moist soils.

Perfect Spots for Planting Laceflower

Laceflower’s wetland preferences make it an ideal candidate for several specialized garden situations:

  • Rain gardens and bioswales
  • Bog gardens and wetland restoration areas
  • Native plant gardens emphasizing local flora
  • Prairie-style plantings with seasonal moisture
  • Naturalized areas with wet or seasonally flooded conditions

The plant’s wetland status varies slightly by region—it’s considered Facultative in Atlantic and Gulf Coastal Plain areas (meaning it can handle both wet and drier conditions), while it’s classified as Facultative Wetland in Eastern Mountains, Great Plains, and Midwest regions (preferring wetlands but tolerating some drier spots).

Growing Conditions and Care

Successfully growing laceflower is relatively straightforward if you can meet its moisture requirements:

  • Sunlight: Full sun to partial shade
  • Soil: Consistently moist to wet soils
  • Hardiness: USDA zones 6-9
  • Water: Requires consistent moisture; tolerates seasonal flooding

The key to success with laceflower is ensuring adequate moisture throughout the growing season. This isn’t a plant for dry, well-drained garden beds, but rather one that thrives where many other plants would struggle with wet feet.

Planting and Propagation Tips

As an annual, laceflower is typically grown from seed:

  • Direct sow seeds in fall or early spring when temperatures are cool
  • Plant seeds in prepared, moist soil areas
  • Seeds may benefit from cold stratification for better germination
  • Once established, plants may self-seed in favorable conditions
  • Minimal maintenance required beyond ensuring adequate moisture

Wildlife and Pollinator Benefits

While laceflower may be small and delicate, it pulls its weight in supporting local wildlife. The tiny white flowers attract various small pollinators, including beneficial insects and native bees. The plant’s presence in wetland and moist soil environments also contributes to the broader ecosystem health of these important habitats.

Design Ideas and Companion Plants

Laceflower works beautifully as a supporting player in native plant combinations. Its fine texture provides excellent contrast when planted alongside bolder foliage plants. Consider pairing it with other moisture-loving natives like wild bergamot, swamp milkweed, or native sedges and rushes for a naturalistic wetland garden design.

The plant’s delicate appearance makes it particularly effective when allowed to naturalize in drifts rather than being planted as individual specimens. This creates a more authentic, meadow-like appearance that mirrors how it grows in natural settings.

Is Laceflower Right for Your Garden?

Laceflower is an excellent choice for gardeners who have consistently moist to wet areas in their landscape and want to support native plant communities. It’s particularly valuable for those working on rain garden projects, wetland restoration, or creating habitat for native pollinators. However, if your garden tends toward dry conditions or you prefer low-maintenance plants that don’t require consistent moisture, you might want to consider other native alternatives better suited to drier conditions.

For the right location and gardener, laceflower offers the reward of supporting a truly native plant while enjoying its delicate, understated beauty throughout the growing season.

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

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Eastern Mountains and Piedmont

FACW

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

Great Plains

FACW

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

Midwest

FACW

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

Laceflower

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

Apiales

Family

Apiaceae Lindl. - Carrot family

Genus

Ptilimnium Raf. - mock bishopweed

Species

Ptilimnium nuttallii (DC.) Britton - laceflower

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