Do I need to deadhead them?

Yes, removing spent blooms encourages the plant to produce more flowers throughout the season.

Can they handle full sun?

They prefer full sun in cooler weather but appreciate some afternoon shade when temperatures climb.

Plant guide

Horned Violet.

Viola cornuta

Pronounced vy-OH-lah kor-NOO-tah

Also known as Horned Pansy, bedding pansy, horned violet, tufted pansy, viola

Horned Pansy — Photo by bigayon (CC BY) via iNaturalist

Horned violets are charming, low growing perennials that bring a splash of color to cool season gardens. They are known for their sweet, slightly fragrant flowers that feature a small spur at the back. These plants thrive in temperate climates and are perfect for borders or containers.

At a glance

Care level: Easy
Plant type: Herbaceous perennial
Light: Full sun to partial shade
Indoor light: bright-indirect
Water: Every 3 to 7 days
Mature size: 20 to 30 cm
Growth rate: medium
Hardiness: USDA 6 to 9
Bloom time: Spring to early summer

Care

Keep the soil consistently moist but not waterlogged to encourage steady blooming. Deadhead spent flowers regularly to extend the flowering season. Watch for aphids or slugs that might enjoy the tender foliage.

Watering: Water when the top inch of soil feels dry to the touch.
Feeding: Apply a balanced liquid fertilizer once a month during the active growing season.
Pruning: Trim back leggy stems and remove faded blooms to promote new growth.
Repotting: Repot in fresh soil every spring if the plant becomes root bound.
Soil: Well draining, humus rich soil
Soil pH: 6.0 to 7.5
Temperature: -10 to 25°C
Humidity: 40 to 60%
Drought tolerance: low
Lifespan: Perennial, typically 2 to 3 years.
Fragrance: light
Deer and rabbits: low

Signs it needs repotting

Roots growing out of the drainage holes.
Water running straight through the pot without soaking in.
The plant looks stunted despite regular care.

Safety

People: This plant is generally considered non toxic to humans.
Pets: This plant is generally considered non-toxic to cats and dogs.
Children: The plant is safe for children, though small parts could pose a minor choking hazard if ingested.
Contact allergens: There are no notable skin irritants associated with this plant.
Airborne allergens: Some individuals may experience mild hay fever symptoms if they are sensitive to violet pollen.
Edibility: While the flowers are technically edible, you should only consume them if they were grown without synthetic pesticides or fertilizers.

How to identify it

Small, spurred, five petaled flowers
Oval to heart shaped leaves
Low growing, clumping habit
Delicate, often bicolored petals

Height: 0.15 to 0.25m
Spread: 0.2 to 0.3m
Leaves: green, semi-evergreen
Flowers: purple, blue, yellow, white, 2 to 4cm

Common problems

Aphids — Small insects that cluster on new growth and suck plant juices.
Powdery mildew — A fungal condition causing white dusty spots on leaves.
Slugs — Gastropods that chew irregular holes in the foliage.

Growing it

Propagation: seed, division, cuttings
When to plant: spring, autumn
Overwintering: In mild climates, they stay green all winter. In colder areas, apply a light layer of mulch to protect the roots from deep freezes.
In containers: They are excellent for containers and hanging baskets, requiring at least a 6 inch pot for a single plant.

Seed Sowing

Sow seeds indoors 8 to 10 weeks before the last frost.
Cover seeds lightly as they need some darkness to germinate.
Keep the soil moist and maintain a temperature near 65 degrees Fahrenheit.
Transplant seedlings into the garden once the danger of frost has passed.

Plant them in the foreground of your beds to ensure they get enough light and aren't shaded out by taller perennials.

Grows well with

Tulip — They provide a beautiful carpet of color beneath taller spring bulbs.
English Daisy — Both plants enjoy similar cool weather and moisture levels.
Forget Me Not — They create a lovely, cottage style display when planted together.

Similar species

Garden Pansy — It has much larger flowers but a similar growth habit.
Sweet Violet — It is a low growing relative known for its intense fragrance.

Science

Family: Violaceae
Genus: Viola
Order: Malpighiales
Class: Magnoliopsida
Native range: Pyrenees mountains and northern Spain.
Conservation: This species is common and not of conservation concern.

It thrives in cool, moist mountain meadows where it spreads through low growing stolons.

Value to wildlife: early season nectar source
Pollinators: bees, butterflies
Uses: edible garnish, spring bedding, container filler, rock gardens

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 2/9
Soil reaction: 6/9
Light: 6/9
Temperature: 4/9
Moisture: 6/9
Nutrients: 5/9

Taxonomy resolved against GBIF.

Questions people ask

Do I need to deadhead them?: Yes, removing spent blooms encourages the plant to produce more flowers throughout the season.
Can they handle full sun?: They prefer full sun in cooler weather but appreciate some afternoon shade when temperatures climb.

Where the name comes from

The genus name Viola is the classical Latin name for these flowers, while cornuta describes the horn like spur on the back of the petal.

Good to know

Viola cornuta is a perennial that acts like an annual in very hot climates.
The name cornuta refers to the small spur on the back of the flower.
They are closely related to pansies but have smaller, more numerous blooms.
These plants often self seed and will return to your garden year after year.

Is your horned violet looking unwell?

This page is a general guide. Pocket Botanist diagnoses problems from a photo of your actual plant, works out watering for your light and conditions, and reminds you when care is due.

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This guide was generated with AI and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.