Peppers need an early start and consistent warmth — get the timing right and you'll have colourful, flavourful fruits from July through October.
Ready to start growing? Read our full How to Grow Peppers UK →
Sowing dates and growing advice verified against RHS guidance by the SoilCommander Growing Team.
Part of the UK Vegetable Planting Calendar — see all sowing dates and monthly guides.
Pepper Sowing & Planting Calendar
| Task | Timing | Notes |
|---|---|---|
| Sow indoors (heated propagator) | Late Jan – March | 22–28°C ideal; 18–21°C minimum |
| Transplant outdoors | Late May – mid June | Nights consistently above 10–12°C |
| Harvest | July – October | Green or fully coloured; pick regularly |
Top Mistakes to Avoid
- Sowing too late: Sow by March at the latest.
- Not enough heat: Use a propagator or heat mat.
- Planting out too early: Wait until nights are reliably above 10°C.
Browse all sowing dates in the UK vegetable planting calendar · Explore all UK vegetable growing guides
Relevant next steps
Plan The Timing Before You Sow
Use the planting window with a planner, seed-starting setup, and the full calendar so dates stay practical for your garden.
Plan the next step
Use the printable UK Vegetable Garden Planner to turn this guide into sowing dates, bed layouts, and weekly garden tasks.