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Venice mallow
is a summer annual. It was introduced from Europe where it was grown
as an ornamental. Venice mallow has an upright growth habit and
can reach 10 - 18 inches in height. The stems are erect, covered
with hairs and branch from the base. The leaves are deeply cleft
into 3 - 5 coarsely toothed lobes and form on long petioles. The
lower stems and petioles can be a red to purple in color. Venice
mallow has a fibrous root system with a weak taproot. |
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The flower of Venice mallow is very showy and are a light sulfur-yellow color with a deep red to purple center. Venice mallow is nicknamed "flower-of-an-hour" because flowers will only last several hours before the petals drop. Venice mallow spreads by seed. The seeds can lay dormant for up to 50 years. Venice mallow is found throughout United States. |
| Integrated Pest Management Control Recommendations: |
Cultural Practices:
Venice mallow is can infest nurseries, orchards, gardens, roadsides cultivated
fields and open waste areas. Venice mallow tolerates drought and gravely
soils. It is also noted to tolerate alkaline soils. Due to longevity of
the seeds, it is crucial to mow or remove the plants prior to flowering
and seed development. Following good agronomic practices such as watering
and mowing will help to prevent infestations of Venice mallow.
Herbicide Use:
For optimum control make your postemergent herbicide application in the
late spring when Venice mallow is young and actively growing.
University Links | Gordon's Recommendations | Germination Dates
