Petasites japonicus (Sweet coltsfoot)
Other names: Butterbur
P. japonicus is a vigorously spreading perennial with whitish-yellow flowers that are borne in winter to early spring before the leaves. In spring very large, kidney-shaped, green leaves develop.
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1.5m max. spread |
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1.2m max. height |
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2-5 years to maturity |
Acorus christophii (Sweet flag)
A. christophii is a clump-forming, semi-evergreen, aquatic plant with strap-shaped, glossy, deep green leaves and creamy-white flower spathes in summer.
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0.3m max. spread |
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0.3m max. height |
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2-5 years to maturity |
Cyperus longus (Sweet galingale)
Other names: Cypress root, Galingale, Long cyperus, Sweet cyperus, Sweet cypress
C. longus is a perennial suitable for growing in ponds and bog gardens. It is a vigorous grower with arching, tough, grass-like leaves and spiky, red-brown flowers in late summer.
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0.9m max. spread |
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1.5m max. height |
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2-5 years to maturity |
Acorus gramineus 'Ogon' (Slender sweet flag 'Ogon')
Other names: Acorus gramineus 'Wogon', Acorus gramineus 'Oborozuki' misapplied, Japanese rush 'Ogon', Grassy-leaved sweet flag 'Ogon', Golden Japanese rush, Gold Japanese rush
'Ogon' is a compact, clump-forming, deciduous, grass-like perennial with linear, glossy, yellow leaves with green stripes.
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0.3m max. spread |
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0.3m max. height |
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5-10 years to maturity |
Acorus gramineus 'Variegatus' (Variegated slender sweet flag)
'Variegatus' is a moisture loving grass with a compact, tufted habit and semi-evergreen strap-like leaves with a creamy yellow edge.
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0.5m max. spread |
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0.5m max. height |
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2-5 years to maturity |
Acorus calamus 'Argenteostriatus' (Silver-striped sweet flag)
Other names: Variegated sweet flag, Acorus calamus 'Variegatus', Sweet flag 'Argenteostriatus', Sweet flag 'Variegatus', Acorus gramineus 'Argenteostriatus'
'Variegatus' is a clump-forming, spreading, moisture-loving, deciduous perennial with aromatic, sword-shaped, green- and cream-striped leaves and insignificant, spike-like flowers in summer.
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0.6m max. spread |
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0.9m max. height |
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2-5 years to maturity |
Glyceria maxima var. variegata (Variegated reed sweet-grass)
Other names: Glyceria aquatica variegata, Glyceria spectabilis 'Variegata'
G. maxima var. variegata is a vigorous, aquatic, rhizomatous perennial grass with keeled, narrowly strap-shaped, cream, green, and white-striped leaves, often flushed pink when young, and panicles of green to purple-green spikelets in mid- to late summer.
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2.5m max. spread |
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0.8m max. height |
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5-10 years to maturity |
Acorus gramineus 'Licorice' (Japanese rush 'Licorice')
Other names: Japanese sweet flag 'Licorice', Dwarf sweet flag 'Licorice', Grassy-leaved sweet flag 'Licorice'
'Licorice' is a mounded, clump-forming, semi-evergreen, aquatic plant with fans of linear, glossy, anise-scented, mid-green leaves.
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0.3m max. spread |
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0.4m max. height |
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2-5 years to maturity |
Other names: Sweetgale, Common candleberry, Devonshire myrtle, Dutch myrtle , Gale, Golden osier , Meadow fern, Moor myrtle, Sweet willow
M. gale is a suckering, thicket-forming, deciduous shrub with upright branches bearing lance-shaped, aromatic, toothed, grey-green leaves and yellow-brown male catkins in spring followed by spherical, dotted, yellow-brown fruit.
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1.5m max. spread |
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1.5m max. height |
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20-50 years to maturity |
Sarracenia purpurea (Purple pitcher plant)
Other names: Side saddle flower, Huntsman's cup, Common pitcher plant, Sweet pitcher plant
S. purpurea is a variable, carnivourous, evergreen perennial with horizontal, purple-veined, purple or green pitchers with upcurved ends and erect, glossy lids. Dark red-purple and pink or dark red flowers bloom in spring.
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1m max. spread |
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0.2m max. height |
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5-10 years to maturity |
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