Justicia — 16 species
Botanical species in the genus Justicia recorded in the PlantPeers database.
Justicia adhatoda
Justicia adhatoda
Family: Acanthaceae
Cultivation
A plant of the drier to wet, lowland tropics, where it is found at elevations up to 1,300 metres. It grows best in areas where annual daytime temperatures are within the range 20 - 27°c, but can tolerate 12 - 32°c. When dormant, the plant can survive temperatures down to about -1°c, but young growth can be severely damaged at 2°c.
Full cultivation guide →
Justicia flava
Justicia flava
Family: Acanthaceae
Cultivation
Found in a wide range of habitats from the tropics to the sub-tropics and from dry climates to moist ones. At least some forms of the plant can tolerate moderate frost. Grows best in a sunny position, but also tolerates partial shade.
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Justicia heterocarpa
Justicia heterocarpa
Family: Acanthaceae
Cultivation
The plant is often regarded as a troublesome weed on farms within its native range.
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Justicia insularis
Justicia insularis
Family: Acanthaceae
Cultivation
Requires a humus-rich, fertile soil for optimum growth, but can succeed in sandy or loamy soils617. A very variable plant.
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Justicia ladanoides
Justicia ladanoides
Family: Acanthaceae
Cultivation
A plant of low to moderate elevations in the moist tropics. It thrives with an annual rainfall ranging from 1,000 - 2,000 mm, daytime temperatures of 25 - 35°c and night temperatures of 20 - 27°. It does not tolerate low temperatures.
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Justicia procumbens
Justicia procumbens
Family: Acanthaceae
Cultivation
We have almost no information on this species and do not know if it will be successful in Britain, though it should succeed if grown as a half-hardy annual.
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