Justicia Americana
American water-willow
A widespread perennial that is commonly found growing in shallow water of lakes, ponds, and streams in North America. Research has shown that it provides important shallow-water refuge for young fresh-water fishes. Despite its common name it is not a woody plant and not closely related to the willows (Salix). It is a herbaceous, aquatic flowering plant.
Contributed by @davieberg
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Full sun to partial shade
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Frequent watering
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Frost Hardy: 23F (-5°C)
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Moist and fertile
Common name
American water-willow
Latin name
Justicia Americana
type
Perennial
family
Acanthaceae
ph
6.0 - 8.0 Acid - Neutral
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Light
Full sun to partial shade
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Frost
Frost Hardy: 23F (-5°C)
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Soil
Moist and fertile
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Water
Frequent watering
Plant & bloom calendar
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Best time to plant
full grown dimensions
0.60 M
1.20 M
Justicia Americana
A widespread perennial that is commonly found growing in shallow water of lakes, ponds, and streams in North America. Research has shown that it provides important shallow-water refuge for young fresh-water fishes. Despite its common name it is not a woody plant and not closely related to the willows (Salix). It is a herbaceous, aquatic flowering plant.
Planting Outdoors Spring
From Early Spring TO Early Spring
Justicia should be grown in rich, moist, preferably in soil that is stream, lake or pond margine and planted where they will be in partial to full shade in the heat of the day. Extremes in water – drought and very cool temperatures will cause loss of leaves.
Planting in containers
From Early Spring TO Early Spring
Justicia Americana are well suited for growing in containers that can be left outside during the winter months in colder regions (to -5C). When growing as a House Plant, your Justicia Americana should be grown in bright indirect light during the growing season (Spring through Fall). In the dormant winter months, move your plant to a cooler (55°) room where it will receive the full sun of a south facing window. Keep the soil moist at all times.
emch
davieberg