Alphabetical Plant Listing

Poncirus trifoliata (Hardy Orange)

Hardy Orange, Japanese Bitter Orange, Japanese Hardy Orange, Aegle sepiaria, Citrus trifoliata, Trifoliate Orange,


One of the hardiest close relative of Citrus, Poncirus trifoliata (Hardy Orange) is an extremely architectural, well-branched, deciduous shrub which provides significant ornamental interest over most seasons. Resembling orange blossoms, refreshingly fragrant, cup-shaped white flowers, 2 in wide (5 cm), appear in late spring and continue to flower through to early summer. They are followed by an abundance of golf-ball size, slightly furry fruits which ripen to a lovely golden-yellow in fall. Although edible, the fruits are quite acidic and seedy but can be used for drinks and marmalade. If left on the tree, they will persist well into winter, adding interest in the garden. The foliage of three-palmate leaves (hence 'trifoliata') emerges yellow-green in spring, turns glossy dark green in summer before turning a lovely butter-yellow in fall. The dark green stems are armed with large, stiff thorns, 2 in. long (5 cm), making this plant an excellent intruder-repellent and a perfect choice to create very ornamental and impenetrable hedges.
Extremely hardy, Hardy Orange can survive temperatures as low as –5ºF (-20ºC). 

  • Hardy Orange may slowly grow up to 8-20 ft. tall (240-600 cm) and 6-15 ft. wide (180-450 cm). However, its ability to withstand pruning means that it can be cut down to fit smaller spaces.
  • Performs best in full sun, in fertile, medium moisturewell-drained soils. Provide a sheltered location from cold, drying winds
  • Generally pest and disease free
  • Drought, heat and humidity tolerant, it is also deer and rabbit resistant.
  • Perfect choice as a single specimen plant or as an informal hedge
  • Prune as needed after flowering
  • Propagate by seed sown in containers in a cold frame in autumn. Alternatively, take semi-ripe cuttings with bottom heat in summer
  • Native to central and northern China

Buy Poncirus trifoliata (Hardy Orange)

Requirements

Hardiness 5 – 9
Heat Zones 1 – 9
Climate Zones 2A, 2B, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21
Plant Type Shrubs
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 8' – 20' (240cm – 6m)
Spread 6' – 15' (180cm – 4.5m)
Spacing 72" – 144" (180cm – 360cm)
Water Needs Low, Average
Maintenance High
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Showy
Tolerance Deer, Drought, Rabbit
Attracts Birds
Garden Uses Beds and Borders, Hedges and Screens
Garden Styles Coastal Garden, Informal and Cottage

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carosch / palinchak / 123RF Stock Photo

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 5 – 9
Heat Zones 1 – 9
Climate Zones 2A, 2B, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21
Plant Type Shrubs
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 8' – 20' (240cm – 6m)
Spread 6' – 15' (180cm – 4.5m)
Spacing 72" – 144" (180cm – 360cm)
Water Needs Low, Average
Maintenance High
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Showy
Tolerance Deer, Drought, Rabbit
Attracts Birds
Garden Uses Beds and Borders, Hedges and Screens
Garden Styles Coastal Garden, Informal and Cottage

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