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botanical name:
Hibiscus syriacus 'Jeanne d’Arc'
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common name:  Shrubby Mallow, Rose of Sharon
synonyms:  Hibiscus syriacus 'Albus Plenus'
family:  Malvaceae
characteristics: shrub
height: 3.00m
width: 2.50m
growth rate: medium
growth habit: erect
leaf colour: green
flower colour: white
main season: Summer
aspect: full sun
conditions: dry soil, moist soil, sandy soil
preferred soil pH: neutral-alkaline
minimum temp: -12°C
USDA zone: 7 to 9
Small double pure white flowers with maroon red markings at the base, in late summer. Vigorous large shrub.

Reasonably fertile, humus-rich, moist, well drained soil in full sun. Performs best in areas with long hot summers.
Prune in early spring. On established plants, some old stems can be cut back hard.

other notes:
Hibiscus syriacus 'Albus Plenus' is either the same variety or very similar.
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