Ligularia 

(li-gue-lair' ee-ah)

Common name: Ligularia, Leopard Plant, Ragwort

Family: Asteraceae, Aster

Height x width: 3-6' x 3'

Growth rate, habit: moderate to fast; large clump

Foliage: basal and alternate on stems, cordate to triangular to orbicular, some species on long 2-3' petioles, 8-12" wide, dentately toothed often coarsely

Flowers:  yellowish orange corymbose heads or long 1-2' spike-like racemes of yellow, mid to late summer

 (photo courtesy tdhnurseries, photobucket.com)

Hardiness: zones 4-8

Soil: moist, preferably along a stream or pond

Light: sun to filtered shade in north, part shade in south

Pests and problems: foliage scorch (from excess sun and wind and too little moisture)

Landscape habit, uses: specimen or large masses in moist areas or along watersides, cut flower; mounded habit

Other interest: native to China; from Latin ligula for little tongue refering to tongue-shaped ray florets

Other culture: foliage wilts in sun and warm days but revives quickly when cool or cloudy or at night

Propagation: species by seed, cultivars by division (usual method)in early spring or fall

Species:

clivorum:dentata

dentata (den-taa' tah)--Bigleaf Ligularia, zones 4-8, 3-4', bright orange flowers in summer corymbs, native to China, long stalked orb to kidney-shaped leaves to 20" wide, better used for foliage than flowers (photo courtesy Missouri Botanical Garden plantfinder)

x palmatiloba (pal-ma-ti-lobe' ah)--dentata and japonica hybrid, zones 5-8, 3' tall, orbicular to cordate leaves, yellow corymb of flowers in summer

przewalskii (priz-wall' skee-ii)--Shavalzki's Ligularia, zones 4-8, similar to stenocephala only with blacker stems and palmately cut leaves and taller, native to northern China, yellow flower spikes in summer, named after Russian explorer Nicolai Przewalski

stenocephala (stin-o-cef' ah-lah)-- Narrow-spiked Ligularia, zones 4-8, similar to przewalski only shorter and heart-shaped leaves, native to northern China, yellow flower spikes in summer, better used for flowers than foliage, leaves up to 12" across wilt readily on warm, sunny days

tussilaginea:Farfugium japonicum

wilsoniana (will-so-nee-aa' nah)--Giant Groundsel, zones 5-8, 4-6', yellow long raceme in mid to late summer with tubular, hollow petioles, dark green kidney-shaped (reniform) basal leaves, named for famous plant explorer in China E.H. Wilson
 
 

Cultivars:
 
Cultivars species flowers other
'Dark Beauty' dentata bright orange dark leaves
'Desdemona' dentata bright orange leaves dark upper, purple below
'Gregynog Gold' hybrid bright orange dentata x veitchinana, Welsh
'Little Rocket' -- bright yellow compact 3-4', many flowers
'Othello' dentata bright orange smaller flowers, less compact
'The Rocket' -- lemon yellow more compact than species


©Authored by Dr. Leonard Perry, Professor, University of Vermont as part of PSS123 course.

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