
How to grow Viola (Johnny Jump Up)
Viola tricolor
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
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
- 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.
- 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.
- 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!
- 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)





