Also known as Annual Malva · Rose Mallow · Royal Mallow
Malva trimestris is a charming annual mallow producing saucer-shaped flowers in shades of pink, white, and rose from summer to fall.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers at least 6-8 hours of direct sunlight daily for best flowering.
Moderate
50% intensity
Keep soil consistently moist, allowing top layer to dry slightly between waterings.
Well-drained
50% intensity
Warm
75% intensity
Thrives in temperatures between 18-25°C. Sensitive to frost.
Low
25% intensity
Light feeding every 4-6 weeks during the growing season is sufficient.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
None
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly, especially during dry periods, to keep the soil consistently moist but not waterlogged. Allow the top 2-3 cm of soil to dry out between waterings for established plants.
Young seedlings require more frequent watering to ensure good root development.
Deadheading spent flowers regularly encourages more blooms and prolongs the flowering period. Pinching back young plants can promote bushier growth.
No significant structural pruning is typically required for this annual species.
Annual Mallow is easily grown from seed sown directly into the garden after the last frost or started indoors 4-6 weeks prior. Seeds germinate readily in warm conditions, typically within 7-14 days.
As an annual, Malva trimestris is not typically repotted. If grown in containers, they will usually complete their life cycle within a single growing season. Overwintering is not usually practiced.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Annual Mallow (Malva trimestris)
Where Annual Mallow (Malva trimestris) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Malvales |
| Family | Malvaceae |
| Genus | Malva |
| Species | Malva trimestris |
Similar in genus Malva
Answers based on plant encyclopedia data
