Saruma spp.

upright wild ginger

SunPart Shade – Full Shade

HardinessZones 5–8

Overview

Saruma spp. is a genus in the birthwort family (Aristolochiaceae) represented by a single species, S. henryi, native to central China. It is a clump-forming herbaceous perennial growing 8-12 inches (20-30 cm) tall and slowly spreading to a similar width. The soft, heart-shaped leaves are 3-5 inches (8-13 cm) long, matte mid-green, and finely hairy on both surfaces. Pale yellow flowers about 0.75 inch (2 cm) across have three rounded petals and appear at the stem tips from mid-spring into summer, with scattered later flowers continuing through the season. Stems and leaves rise from a short rhizome, forming a low mound. Foliage dies back to the ground in autumn and regrows in spring. Growth is slow, and clumps take several years to fill a 12-inch (30 cm) space. In hot climates the leaf margins scorch where afternoon sun is strong, and the plant grows more reliably in moist, shaded woodland soil.

Native Range

Native to central China, including Hubei, Sichuan, and neighboring provinces. Grows in moist, shaded forest understory and along stream banks in humus-rich soil at moderate elevations.

Suggested Uses

Grown in shaded borders, woodland gardens, and along shaded paths, spaced 10-12 inches (25-30 cm) apart. The low mound suits underplanting beneath shrubs and at the front of shade beds. It spreads slowly and does not form quick ground cover.

How to Identify

Recognized by soft, heart-shaped mid-green leaves 3-5 inches (8-13 cm) long on a low clump 8-12 inches (20-30 cm) tall. Pale yellow three-petaled flowers about 0.75 inch (2 cm) across appear at the stem tips. The combination of yellow petals and heart-shaped leaves separates Saruma spp. from the related wild gingers (Asarum spp.), which lack true petals.

Appearance

Size & Dimensions

Height8" - 1'

Width/Spread10" - 1'

Colors

Flower Colors

yellow

Foliage Colors

green

Fall Foliage Colors

no change

Bloom Information

Bloom Period

Spring Summer

Flowering begins in mid- to late spring and continues sporadically into summer, roughly April through July in temperate gardens. Individual flowers last a few days, with new buds opening over an extended period. Cooler, shaded sites prolong the display.

Detailed Descriptions

Foliage Description

Mid-green

Growing Conditions

Sun Requirements

SunPartial Shade SunFull Shade

• 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

Plants grow in partial to full shade in consistently moist, humus-rich soil. Leaves scorch at the margins where exposed to strong afternoon sun or dry soil. Watering during dry spells keeps foliage intact through summer. The species is hardy in USDA zones 5-8 and dies back to the ground each winter, regrowing in spring. Self-sown seedlings appear near established clumps and can be moved while small. Division in spring renews older clumps.

Pruning

Remove dead foliage in late autumn or early spring before new growth emerges. Spent flower stems can be trimmed to limit self-seeding. No other pruning is needed.

⚠️ Toxicity Warning

Unknown

Perennial