Viola columnaris Skottsb.
Viola columnaris is one of the rosulate Violas, which have typical "heartsease" flowers but leaves are arranged in a rosette rather like a Sempervivum. It is a tufted, perennial plant that spreads almost horizontally on the ground by means of rhizomes. It is remarkable for its neat, tightly imbricate, tile-like rosette, taking the form of raised columns. The rosettes are up to 3.6 inches (9 cm) tall and up to 2 inches (5 cm) in diameter. The leaves show a striking similarity in color to their background rocks and the plants are difficult to detect when not in flower. The flowers, barely emerging from the rosettes, are white with violet veins and appears in spring and in early summer.
USDA hardiness zone 7a to 11b: from 0 °F (−17.8 °C) to 50 °F (+10 °C).
How to Grow and Care
Viola plants prefer cool to warm climates, and wilt a bit in mid-summer heat. In warmer areas, we recommend partial shade. They tolerate a variety of soils. Add a general purpose fertilizer when planting them, then once a month after that. Once your Viola plants are established, they should grow well, even if left unattended. Soil should be moist, but not wet. Water them during dry periods, once or twice per week. Keep them well weeded. Remove spent blooms to promote additional blooms, and extend the blooming period. This will also keep the appearance neat and beautiful.
Violas are grown from seeds. They like full to partial sun. Viola can be directly seeded into your flower garden or seeded indoors for transplanting later. For spring blooms, you need to start your Viola in pots and containers indoors six to eight weeks before the last frost… – See more at: How to Grow and Care for Violas
Viola columnaris is native to Argentina.
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