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Uvularia perfoliata (Perfoliate Bellwort)
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© grinnin, some rights reserved (CC-BY-NC) · iNaturalist
Perennials

Uvularia perfoliata

Perfoliate Bellwort

Colchicaceae
Eastern North America — from Quebec south to Florida and west to Texas

At a Glance

TypePerennial
HabitClumping
FoliageDeciduous
Height12-18 inches (30-45 cm)
Width12-18 inches (30-45 cm)
Maturity3 years

Growing Zones

USDA Hardiness Zones

4 - 8
Zone 4Zone 5Zone 6Zone 7Zone 8
These zones indicate the coldest temperatures this plant can typically survive.
What's my zone? →
Frost Tolerancehardy

Key Features

Attracts PollinatorsDeer Resistant
Native to North America
Maintenancevery low

Overview

Uvularia perfoliata is perfoliate bellwort (merrybells) — a graceful native woodland wildflower growing 12-18 inches (30-45 cm) tall and wide. The species name 'perfoliata' means 'through the leaf', describing the characteristic perfoliate leaves — the stem appears to pass directly through the center of each leaf, as if the leaf were threaded onto the stem. This is a botanical trait uncommon in temperate perennials and makes identification straightforward. Soft lemon-yellow pendulous bell-shaped flowers with slightly twisted petals dangle from the tips of gracefully arching stems in April and May, creating a nodding, shy appearance. The genus name Uvularia comes from 'uvula' (the pendulous tissue in the throat), referencing the dangling flowers. Gray-green to blue-green foliage persists through summer — not a spring ephemeral like trilliums, the foliage remains until fall. Spreads slowly by rhizomes to form a colony over time. Moist, humus-rich, acidic deciduous woodland soil. Deer avoid the foliage.

Native Range

Uvularia perfoliata is native to eastern North America — from Quebec south to Florida and west to Texas, growing in rich deciduous forests.

Suggested Uses

Used in woodland gardens, shade gardens, and naturalized under deciduous trees. A graceful native with an arching habit. The perfoliate leaves are a botanical conversation piece. Unlike trilliums, the foliage persists through summer.

How to Identify

Identified by soft lemon-yellow pendulous bell-shaped flowers with twisted petals on arching stems, and gray-green perfoliate leaves (stem appearing to pass through the leaf center). The perfoliate leaf is the key diagnostic — checking whether the stem pierces the leaf base confirms identification. The dangling yellow bell flowers and the arching habit confirm Uvularia.

Appearance

Size & Dimensions

Height1' - 1'6"
Width/Spread1' - 1'6"

Reaches mature size in approximately 3 years

Colors

Flower Colors

yellow
lemon

Foliage Colors

gray green
blue green

Fall Foliage Colors

yellow

Bloom Information

Bloom Period

~3 weeks
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Spring
Flowering in April and May, approximately 3 weeks. Soft lemon-yellow dangling bells. The gray-green foliage persists through summer (not a spring ephemeral).

Detailed Descriptions

Flower Description

Soft lemon-yellow, pendulous, bell-shaped, twisted petals

Foliage Description

Gray-green to blue-green, oval, perfoliate (stem appears to pass through the leaf)

Growing Conditions

Sun Requirements

Partial ShadeFull Shade
Requires 2-4 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range5.5 - 7.0(Neutral)
357912
Soil Types
loam
Drainagemoist

Water & Climate

Water Needs

Medium

Frost Tolerance

hardy

Time to Maturity

2-3 years

Care & Maintenance

Care Guide

Plant in partial to full shade. Moist, humus-rich, acidic deciduous woodland soil. Spreads slowly by rhizomes. The foliage persists through summer — no dormancy gap to fill.

Pruning

No pruning needed. The foliage yellows and dies back naturally in fall.

Maintenance Level

very low

⚠️ Toxicity Warning

Non-toxic