Horned violet
Viola cornuta · Violaceae
📷 Isidre blanc · CC BY-SA 4.0
The gardener's calendar
Ideal time to plant horned violet: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Scientific name
- Viola cornuta
- Family
- Violaceae
- Plant type
- Herbaceous perennial
- Adult height
- 20 to 30 cm
- Foliage
- Evergreen
- Flowering
- March to June
- Exposure
- Partial shade to sun
- Hardiness
- Very hardy (down to -15°C)
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability high.
Expert tips
The key tip
Pinch stems regularly in spring and through June to get bushy, floriferous plants. A light application of balanced fertilizer in April gets the season off to a good start.
The common mistake
Leaving the violet in place without rejuvenation beyond 2 years: it becomes lanky, flowers less, and eventually deteriorates.
The pro's trick
Propagate old clumps in late summer (August) by taking the young peripheral rosettes: you'll get vigorous plants to replant quickly.
Care
Exposure
Horned violet appreciates partial shade to sun depending on your climate: prefer partial shade in warm regions to prevent flowers from fading too quickly. In temperate climates, moderate sunlight of 4 to 6 hours daily stimulates generous flowering. Protect it from the intense afternoon rays in summer.
Watering
Keep the soil regularly moist without waterlogging: water once or twice weekly depending on weather. Reduce watering in winter when growth slows. Check that drainage is good to prevent root rot, particularly during humid periods.
Soil and planting
Plant horned violet in rich, well-draining, slightly acidic soil. Adding compost or peat at planting promotes its development. Space plants 20 to 25 cm apart to allow air circulation.
Pruning and cleanup
Regularly remove spent flowers to extend flowering (pinching). Cut back untidy stems after summer flowering to rejuvenate the plant and encourage bushiness. Cleaning dead foliage in late winter helps prevent disease.
Fertilizing
Apply balanced slow-release fertilizer in spring or liquid fertilizer every 2 to 3 weeks during flowering. Avoid excess nitrogen which would promote foliage at the expense of flowers.
Health and pests
Horned violet is generally hardy but can suffer from powdery mildew or root rot in stagnant humidity. Regularly aerate the foliage and check drainage. For light infestations, remove affected parts and improve air circulation.
Did you know?
Horned violet originates from the Spanish Pyrenees and bears its name 'cornuta' because of the particularly developed nectary spur at the back of its flower. It was crossed with other violet species as early as the 19th century to create pansies (Viola × wittrockiana), transforming a modest wild flower into one of the most popular ornamental plants in European gardens.
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
- Sweet violetViola odorata
- Labrador violetViola labradorica
- Wood violetViola riviniana
- Field pansyViola arvensis
- Marsh violetViola palustris
- Wood violetViola reichenbachiana
Tips generated and checked by Viridia — adapt them to your local climate.