Viola Seeds – Viola cornuta
Viola cornuta • Violaceae • Native to Spain & Pyrenees
Viola Seeds grow into compact, cool-season flowering plants with delicate blooms in shades of purple, blue, yellow, and white. Ideal for garden borders, containers, rock gardens, and colorful seasonal displays.
Seed Variety: Johnny Jump Up Viola Seeds
Quantity: 100 Seeds
Selected: Johnny Jump Up Viola Seeds / 100 Seeds
Germination depends on soil, temperature, moisture, and care. See our return policy for details.
At a glance
Viola cornuta is toxic to dogs, cats, and horses if ingested in quantity, so plant it with that in mind if pets have free run of your garden.
Botanical profile
Meet the Viola – Viola cornuta
Step-by-step planting
Growing Viola cornuta from seed is straightforward but rewards patience and attention to temperature, since cool conditions are central to every stage from germination through bloom.
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1
Start Indoors at the Right Time
Sow viola seeds indoors 10 to 12 weeks before your last expected frost, placing them in shallow trays or cell packs filled with a fine, moist seed-starting mix.
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2
Cover Seeds Lightly
Press seeds gently onto the surface and cover with a thin layer of mix or fine vermiculite, no deeper than about 3mm, as viola cornuta seeds need darkness to trigger horned violet germination.
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3
Keep Soil Cool and Moist
Unlike many seeds, viola cornuta germinates most reliably when soil temperature is kept between 15 and 18 degrees Celsius, so avoid placing trays on a warm heat mat and instead keep them in a cool room or basement.
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4
Be Patient with Germination
Sprouting typically takes 10 to 20 days under good conditions, though actual results vary depending on seed age, moisture consistency, and your specific environment, so do not be discouraged by slower emergence.
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5
Move Seedlings to Light
Once sprouts appear, move trays to a bright windowsill or under grow lights for 14 to 16 hours daily to keep seedlings compact and prevent them from getting leggy before transplanting.
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6
Harden Off Before Transplanting
About two weeks before moving plants outside, begin setting them outdoors in a sheltered spot for a few hours each day, gradually increasing exposure so they adjust to wind, direct sun, and temperature swings.
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7
Plant Out in Cool Weather
Transplant into the garden or into containers for viola container planting once nighttime temperatures are consistently above freezing, spacing plants 15 to 20cm apart in a spot with morning sun and well-drained, moderately fertile soil.
Year-round care
Spring
- Sow after last frost
- prepare soil with compost
Summer
- Water regularly
- feed monthly
Fall
- Harvest before frost
- store well
Winter
- Rest
- store seeds cool and dry
Full specifications
Shipping
- Orders are delivered within 8 to 16 business days.
- All orders include tracking.
- Free shipping on all orders.
- Seeds are packed in moisture-resistant, resealable foil packets.
Germination
Germination rates vary depending on climate, soil conditions, and care. Seeds perform best when planted in the right season at the correct temperature, with consistent moisture and adequate light. We take quality seriously and each batch is tested before packaging. If you have concerns about your seeds, reach out and we will do our best to help.
Frequently asked
Questions about Viola Seeds – Viola cornuta
How long does Viola cornuta take to germinate?
Under favorable conditions, horned violet germination typically occurs somewhere between 10 and 20 days after sowing. That said, germination depends heavily on soil temperature, moisture consistency, seed age, and the care taken at sowing, so your experience may fall outside that range. Keeping soil cool and evenly moist, rather than warm and wet, tends to give the most reliable results.
Is Viola cornuta edible?
Yes, edible viola flowers are one of the charming bonuses of growing this plant, and both the petals and whole flowers of Viola cornuta are considered safe for culinary use. They have a mild, slightly grassy flavor and are commonly used to garnish salads, float in drinks, or decorate cakes and desserts. Only use flowers from plants that have not been treated with pesticides or other chemicals.
Can I grow Viola cornuta in containers?
Viola container planting works very well with this species, as the compact habit and fibrous root system adapt easily to pots, window boxes, and hanging baskets. Choose a container with good drainage, use a quality potting mix, and be aware that containers dry out faster than garden beds, so you will need to water more frequently. A container also lets you move the plant to a cooler spot during summer heat, which helps extend blooming.
When should I sow Viola cornuta seeds?
For spring planting, sow viola seeds indoors 10 to 12 weeks before your last frost date so plants are ready to go out as soon as the ground is workable. In mild-winter climates, you can also sow in late summer for autumn and winter flowering, which takes advantage of the cool season flowers nature of this plant. Direct sowing outdoors is possible but less reliable since you have less control over soil temperature.
Does Viola cornuta come back every year?
Viola cornuta is a true perennial in USDA zones 6 to 9, meaning established plants will return after winter without replanting. In colder zones it is often grown as an annual, though it self-sows freely enough that you may find new seedlings appearing on their own each season. The viola cornuta perennial habit is strongest in regions with mild winters and cool summers, where plants can persist and spread over several years.
What soil pH does Viola cornuta prefer?
Viola cornuta grows well in slightly acidic to neutral soil, with a pH range of roughly 5.8 to 6.5 being ideal. In soil that is too alkaline, you may notice yellowing leaves as the plant struggles to take up nutrients properly. If you are unsure of your soil pH, a simple home test kit can help you decide whether an amendment like garden sulfur is worthwhile.
Why has my Viola cornuta stopped blooming in summer?
This is completely normal behavior for cool season flowers like Viola cornuta, which naturally slows down or goes dormant when temperatures consistently exceed around 25 degrees Celsius. The plant is not dying, it is simply resting through the heat. Cut it back by about a third, keep it watered, and in many climates it will flush again in autumn when temperatures drop.