Asiatic dayflower
Commelina communis · Commelinaceae
The gardener's calendar
Ideal time to plant asiatic dayflower: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Deciduous
- Flowering
- Summer to autumn (July-October)
- Adult size
- 30 to 60 cm in height
- Growth
- Fast
- Hardiness
- Low hardiness (frost-sensitive, zone 9+)
- Origin
- Southeast Asia (Japan, China)
- Soil type
- Rich, well-drained, slightly moist
Care
Watering
Keep the soil regularly moist without waterlogging, especially during spring and summer growth. Gradually reduce watering in autumn. Indoors, maintain good ambient humidity with occasional misting.
Light exposure
Prefer partial shade to light shade. The plant tolerates indirect sunlight but may suffer in intense full sun exposure. Indoors, place it near a window with diffused light.
Soil and potting mix
Use a rich, well-structured mix: universal potting soil enriched with compost or organic matter. Ensure good drainage to prevent root suffocation.
Fertilizer
Apply diluted liquid fertilizer once or twice a month during the growing period (spring-summer). Reduce or stop fertilizing in autumn-winter during dormancy.
Pruning and maintenance
Pinch back stems regularly to encourage compact, bushy growth. Remove spent flowers and dead or weak stems in spring. This plant is often grown as an annual or biennial.
Pests and diseases
Watch for spider mites and mealybugs, especially indoors or in dry conditions. Powdery mildew can occur in humid, poorly ventilated areas. Ensure good air circulation and clean the foliage regularly.
Did you know?
Common dayflower has fascinated botanists and artists for centuries: its three delicate blue petals inspired a prestigious shade used in traditional Japanese pigments and inks. Its ephemeral flowers open only for a few hours in the morning, hence its English nickname "Wandering Jew" in some regions.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
Add this plant to my garden →Plants from the same family
- Wooly SpiderwortTradescantia sillamontana
- SpiderwortTradescantia fluminensis
- Commelina diffusaCommelina diffusa
- Ohio spiderwortTradescantia ohiensis
- Commelina cyaneaCommelina cyanea
- Commelina benghalensisCommelina benghalensis
Tips generated and checked by Viridia — adapt them to your local climate.