Garden Care Guide

Horned Violet Care

Viola cornuta

A seasonal bedding plant that likes cool weather and adds color from autumn through spring. It prefers plenty of sun (it loves winter sun) and moist, well-drained soil. In Izmir it is planted in autumn, blooms through winter and spring, and finishes its life with the summer heat.

Hardy · -25 °C / -13 °F

Monthly care calendar

Timings are for a temperate Northern Hemisphere climate. In warmer areas tasks start earlier, in colder areas later; in the Southern Hemisphere shift them by six months.

January
  • Watering: Not required; the plant is dormant and winter rains are sufficient.
  • Pruning: Removing spent flowers and yellowing leaves keeps the plant healthy and encourages flowering.
  • Plant protection: Check for aphids.
  • General care: It continues to bloom in winter.
  • Pests & diseases: To prevent root rot, make sure drainage is good.
  • Frost risk: Fully frost-hardy; even if flowering pauses, the plant does not die.
February
  • Watering: If the soil is dry, water; rainfall is usually sufficient.
  • Fertilizing: A balanced liquid fertilizer may be given once a month.
  • Pruning: Continue removing spent flowers.
  • Plant protection: Be watchful for aphids and slugs.
  • General care: The plant continues to develop.
March
  • Watering: Water a newly planted specimen more often than established plants during its first year, as its root system is still shallow.
  • Fertilizing: Apply a balanced fertilizer as the plant emerges from dormancy.
  • Pruning: Continue deadheading spent flowers for abundant blooming.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: Good time for planting and transplanting.
  • Pests & diseases: Check the branches and trunk for brown, fixed bumps (scale insects).
April
  • Watering: If there is no rainfall, water every 15 days. Water newly planted plants more often than established plants during the first year; the root system is still shallow.
  • Fertilizing: Continue fertilizing every two weeks.
  • Pruning: Continue removing spent flowers.
  • Plant protection: Continue pest and disease control.
  • General care: Suitable period for planting and transplanting. Flowering begins.
  • Pests & diseases: As temperatures rise, the risk of spider mites begins.
May
  • Watering: If there is no rainfall, water once a week. Water newly planted plants more often than established plants during the first year; the root system is still shallow.
  • Fertilizing: After mid-month, stop fertilizing.
  • Pruning: Regularly remove spent flowers at the base; this encourages new flowering. Extend flowering by regularly removing spent flower stalks. Keep a compact form by shortening shoots that grow long and sprawling.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: Suitable period for planting and transplanting. Flowering continues. Apply mulch 5-7 cm thick over the root zone; it conserves soil moisture and suppresses weeds. Do not press mulch against the stem.
  • Pests & diseases: If you see black spots with yellow halos on the leaves (black spot), collect the diseased leaves and remove them from the garden; the disease overwinters in fallen leaves. Check the branches and trunk for brown, immobile bumps (scale insects).
June
  • Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. Water so that the soil is wetted 10-15 cm down from the surface.
  • Fertilizing: Apply the second fertilizer dose during the growing season. Do not fertilize after August; late growth will not survive winter.
  • Pruning: Regularly remove spent flowers at the base; this encourages new flowering.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: Flowering continues.
  • Pests & diseases: If you see black spots with yellow halos on the leaves (black spot), collect the diseased leaves and remove them from the garden; the disease overwinters in fallen leaves.
July
  • Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. Water so that the soil is wetted 10-15 cm down from the surface.
  • Pruning: Regularly remove spent flowers at the base; this encourages new flowering.
  • General care: Flowering continues. Keep it in a position sheltered from midday sun; scorching at the leaf edges is a sign of burn.
August
  • Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. Water so that the soil is wetted 10-15 cm down from the surface.
  • Pruning: Regularly remove spent flowers at the base; this encourages new flowering.
  • General care: Flowering continues.
September
  • Watering: If there is no rainfall, water once a week. Water newly planted plants more often than established plants during the first year; the root system is still shallow.
  • Fertilizing: During planting, slow-release fertilizer or compost can be mixed into the soil.
  • Pruning: Regularly remove spent flowers at the base; this encourages new flowering.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: Suitable period for planting and transplanting. Flowering continues.
  • Pests & diseases: If you see black spots with yellow halos on the leaves (black spot), collect the diseased leaves and remove them from the garden; the disease overwinters in fallen leaves.
October
  • Watering: If there is no rainfall, water every 15 days. Water newly planted plants more often than established plants during the first year; the root system is still shallow.
  • Fertilizing: Start balanced liquid fertilizer every two weeks. Do not overapply.
  • Plant protection: Protect young seedlings against slugs and snails.
  • General care: Suitable period for planting and transplanting. Flowering continues.
November
  • Watering: After the seedlings settle in, water as the soil dries. Winter rains usually begin to be sufficient.
  • Fertilizing: Continue fertilizing once a month.
  • Pruning: To encourage flowering, cut off the first flowers that fade.
  • General care: Plants begin to flower through the winter. This is the last chance to plant.
December
  • Watering: Not required; winter rains are sufficient.
  • Fertilizing: Continue fertilizing once a month.
  • Pruning: Remove spent flowers.
  • General care: It keeps flowering even in the middle of winter.
  • Pests & diseases: Cold and wet weather can trigger fungal diseases. Good air circulation is important.

The care advice on this page is general and for information only; it is not professional advice. Plant age, soil and your garden’s microclimate can change the outcome. Plant protection products are mentioned only as general information; they are regulated, and the choice, dose and timing must be decided by a qualified professional under local rules. Consult a landscape architect or agronomist before applying.

Want reminders for every plant in your garden? Our garden-care app with monthly task lists and frost alerts is currently available in Turkish; the English version is on the way.

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