Do viola seeds need dark to germinate?
Sowing Viola Seed Indoors: Sow indoors 8-12 weeks before the last heavy frost using a seed starting kit. Violas can take a light frost. Sow seeds thinly and evenly in seed starting formula. Cover completely as seeds need darkness to germinate; firm lightly and keep evenly moist.
Does Viola cornuta spread?
They spread by creeping, ascending stems to 12” wide. They are typically grown as perennials, however, can also be grown as biennials or annuals. Blooming in the spring make this a great companion plant for tulips.
How do you grow Viola cornuta?
Viola Perennial (Viola cornuta)
- Plant Feed. Slow release feed in spring.
- Watering. Keep soil evenly moist.
- Soil. Fertile, humus-rich, well-drained soil.
- Basic Care Summary. Grow in fertile, humus-rich, well-drained soil. Keep soil moist, watering freely in dry weather. Remove faded flowers.
What month do you plant viola seeds?
when to plant violas Sow viola seed undercover in the spring in March and April or in the autumn in September and October. Plant out seedlings in the spring. If growing winter-flowering varieties, these can be planted out in the winter months.
Do viola seeds need cold stratification?
There are a few tricks to successful viola seed germination, however the good news is these are perfect for winter sowing! For those of you unfamiliar with winter sowing, it is based on the fact that many seeds need a cold stratification period to germinate.
When should I start viola seeds?
Start seed about 8 to 12 weeks before transplanting. Mature violas can withstand occasional freezing temperatures, but new transplants may be damaged if exposed to a freeze. Warm climate gardeners transplanting in the fall should start their seeds in mid-summer.
Do violas self seed?
Plants self-seed freely and look charming allowed to naturalise through a border, wild garden or in woodland clearings. For best results, grow Viola ‘Heartsease’ in moist but well-drained soil in partial shade. Deadhead spent blooms to prolong flowering, and divide clumps every autumn.
How do you grow viola seeds?
Viola seed is very fine and needs to be sown on the surface of fine damp compost. Cover with a thin layer of sieved compost or vermiculite. When the seedlings germinate and have two true leaves prick them out into modules or small pots and grow in cool light conditions until large enough to plant out.
Is Viola cornuta a perennial?
Viola cornuta | horned pansy Herbaceous Perennial/RHS Gardening.
Do Violas self seed?
What kind of flowers do viola cornutas have?
Noted for its velvety, black flowers, Viola cornuta ‘Blackout’ is a compact, rounded perennial prized for its abundance of large, fragrant flowers, adorned with bright yellow centers.
What kind of plant is a v.cornuta?
True V. cornuta violas are actually the primitive, unimproved species, and ornamental varieties from which modern cultivars are hybridized, but still, this is the botanical name most often assigned to your garden-variety violas. By the early 1800s, botany enthusiasts began tinkering with wild pansies and violas.
How big does a viola horned violet get?
Heat tolerant. Easily growing up to 6-10 in. tall (15-25 cm) and 10-12 in. wide (25-30 cm). A part shade lover, it is best grown in fertile, moist, well-drained soils. Tolerates full sun in cool climate areas. Add mulch to keep the soil cool and moist.
What kind of sun does a viola need?
Here are the basic stats for violas. Be sure to check your seed packet for variety-specific instructions and growing preferences: USDA Hardiness Zones: Short-lived perennials that overwinter in zones 6 through 11. Almost always grown as an annual here or elsewhere. Sunlight Preferences: Full sun, with afternoon shade in hot summer areas.