Viola (Johnny Jump Up)

How to grow Viola (Johnny Jump Up)

Viola tricolor

🌸 Flower 🌱 Grown each year

Tiny purple-and-yellow "faces" that flower for months and pop up all over the garden. The flowers are edible — pretty on salads and cakes.

At a glance: Sow mid March to mid June.

When to sow, plant and harvest

JanFebMarAprMayJunJulAugSepOctNovDec
Sow outdoors
Flowers

Timed for a typical UK garden (last frost mid-April). The app uses your own town's frost dates.

Growing Viola (Johnny Jump Up): what it needs

Light
Part shade · 6+ hours a day
Watering
Water in dry spells; pots daily in summer
Soil
Any well-drained soil
Spacing
15 cm
Height
15 cm
In pots
Grows well in containers
Feeding
Liquid feed every two weeks once flowering starts
Hardiness
USDA zones 2–11
Difficulty
Easy

Step by step

  1. Mid March – mid June · 4 weeks before the last spring frost

    Sow Seeds Outdoors

    Sow thinly where they are to flower, in a sunny spot, into raked, weed-free soil. Cover the seed lightly — it germinates in the dark.

  2. 10–21 days after “Sow Seeds Indoors” · Late March – early April

    Check Germination

    Seedlings should appear in 10–21 days. Keep the soil moist. If sown outdoors, thin them to 15 cm apart once they have two true leaves.

  3. 59–89 days after “Check Germination” · Late May – late June

    First Flowers — Deadhead Regularly

    Snip off faded flowers every few days to keep new ones coming for months. Take a photo for your journal!

  4. Mid October – early November · around the first autumn frost

    Clear or Collect Seed

    When frost blackens the plants, pull them up for the compost heap. Leave a few seedheads first if you want to save seed.

More flowers to grow

Photo: Achim Lammerts (Syntaxys) / Wikimedia Commons (CC BY-SA 4.0)