North America Non-native Plant

Urn Orchid

Botanical name: Bletilla striata

USDA symbol: BLST

Life cycle: perennial

Habit: forb

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

Urn Orchid: A Graceful Ground Cover Orchid for Shade Gardens Looking for an orchid that’s actually manageable in your garden? Meet the urn orchid (Bletilla striata), a charming terrestrial orchid that brings a touch of exotic elegance to shady corners without the fussy care requirements of its tropical cousins. What ...

Urn Orchid: A Graceful Ground Cover Orchid for Shade Gardens

Looking for an orchid that’s actually manageable in your garden? Meet the urn orchid (Bletilla striata), a charming terrestrial orchid that brings a touch of exotic elegance to shady corners without the fussy care requirements of its tropical cousins.

What Is the Urn Orchid?

The urn orchid is a perennial orchid that’s refreshingly different from the high-maintenance orchids you might know. Instead of growing on trees or requiring special bark mixes, this ground-dwelling beauty grows happily in regular garden soil. Its botanical name, Bletilla striata, refers to its distinctive pleated leaves that look like they’ve been accordion-folded by nature.

Native Status and Distribution

While the urn orchid has naturalized in parts of Florida and Kentucky, it’s originally from Asia, specifically China, Japan, and Myanmar. As a non-native species that reproduces spontaneously in the wild, it’s established itself in certain areas of the lower 48 states. Though it’s not considered invasive, gardeners interested in supporting native ecosystems might want to consider native orchid alternatives like the showy orchis or pink lady’s slipper.

Why Grow Urn Orchid?

Here’s what makes this orchid special in the garden:

  • Stunning purple-pink flowers that bloom from late spring to early summer
  • Attractive pleated foliage that adds texture even when not in bloom
  • Much easier to grow than most orchids
  • Perfect for adding exotic flair to shade gardens
  • Goes dormant in winter, making it cold-hardy in zones 5-9

Garden Design and Landscape Role

The urn orchid shines as a ground cover in woodland gardens and shaded borders. It’s particularly stunning when planted in drifts under trees or along shaded pathways. This orchid fits beautifully into Asian-inspired gardens, cottage gardens, and naturalistic woodland settings. It also performs well in containers if you want to move it around or showcase it during bloom time.

Growing Conditions

Think forest floor when planning where to plant your urn orchid:

  • Light: Partial shade to full shade (morning sun is okay)
  • Soil: Moist, well-draining soil rich in organic matter
  • pH: Slightly acidic to neutral
  • Moisture: Consistent moisture during growing season, drier in winter
  • Hardiness: USDA zones 5-9

Planting and Care Tips

Getting started with urn orchids is surprisingly straightforward:

Planting: Plant the pseudobulbs (the orchid’s storage organs) in spring, about 2 inches deep and 6 inches apart. Choose a spot with rich, humusy soil that doesn’t get waterlogged.

Seasonal Care: During the growing season, keep soil consistently moist but not soggy. The plants will go completely dormant in winter, dying back to the ground – this is totally normal! Apply a layer of mulch for winter protection in colder zones.

Maintenance: These orchids are surprisingly low-maintenance once established. Divide clumps every 3-4 years in early spring to prevent overcrowding and maintain vigor.

Wildlife and Pollinator Benefits

While urn orchids do attract some pollinators like bees and butterflies, they’re not major wildlife magnets. If supporting native pollinators is a priority, consider pairing them with native shade plants like wild ginger, coral bells, or native violets.

The Bottom Line

The urn orchid offers gardeners a chance to grow a real orchid in their regular garden beds – no greenhouse required! While it’s not native to North America, it’s not aggressive or invasive either. If you’re drawn to its elegant flowers and unique foliage, go ahead and give it a try in your shade garden. Just remember to balance non-native choices with native plants that support local ecosystems.

For gardeners specifically interested in native alternatives, look into native orchids like the showy orchis or consider native shade perennials that offer similar textural interest and seasonal beauty.

Urn Orchid

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Orchidales

Family

Orchidaceae Juss. - Orchid family

Genus

Bletilla Rchb. f. - bletilla

Species

Bletilla striata (Thunb.) Rchb. f. - urn orchid

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