Alongside the raw chilies are finished products: a jar of Pickled Jalapeño Nacho Slices, a glass jar of Dried Palivec Paprika Flakes, and a bottle of Dragon Tongue Chili Oil

Growing Chillis in the UK Fact Sheet 2026 Range

The Ultimate UK Chilli Grower’s Guide

From Citrus Zing to Tropical Fire: Managing Six Unique Varieties for 2026

Success in the UK climate is about variety management. Some of your plants (like the Palivec) are “sprinters” that ripen early, while others (like the Scotch Bonnet) are “marathon runners” that need every bit of summer sun to reach the finish line.

The Extended Variety Profiles

Variety Heat Level (SHU) UK Growing Profile Primary Use
Palivec Long Red 600 – 1,500 The Sprinter: Most cold-tolerant; first to ripen. Mild Pickling
Ohnivec 1,000 – 10,000 The Transformer: Heat increases as colour changes. Grilling & BBQ
Jalapeño 2,500 – 8,000 The Workhorse: Sturdy, high yields, very reliable. Poppers & Salsas
Lemon Drop 30,000 – 50,000 The Lanky Giant: Large plants, needs lots of space. Fish & Hot Sauce
Dragon Tongue 30,000 – 50,000 The Ornamental: Needs max UV for purple colours. Spicy Stir-fries
Scotch Bonnet 100,000 – 350,000 The Diva: Requires high heat and long season. Jerk Marinades

The Master Season Timeline

Phase Months Action Plan
Potting Up Mar – May Supplied in 9cm pots, pot up  to 12cm. Keep on the sunniest windowsill possible. Light is more important than heat once germinated.
Final Move Late May Move to final 10-liter pots. Scotch Bonnet must stay in a greenhouse/conservatory. Others can go to a sheltered patio or balcony, preferably south facing.
Feeding June-Sept Once flowers appear, feed weekly with high-potash (Tomato) fertilizer.
Harvest July – Oct Pick Palivecs and Green Jalapeños early to encourage more growth. Let Ohnivecs turn red for maximum fire.

 

Variety-Specific Expert Tips

1. Support the “Heavyweights” (Ohnivec & Palivec)

Because these Czech varieties produce massive, heavy fruits (up to 20cm long), the branches often sag. In the UK’s damp climate, fruit touching the soil will rot or be eaten by slugs. Stake them early with bamboo canes and tie the main stem every 10cm.

2. Manage the “Baccatum” Stretch (Lemon Drop)

The Lemon Drop is a Capsicum baccatum, meaning it grows differently. It will try to become a large, floppy bush. To keep it manageable in a UK greenhouse:

  • Pinch out the tips: When the plant is 30cm tall, pinch off the growing tip to encourage a bushier, sturdier shape.

  • Space it out: Give it more room than the Jalapeños; it needs airflow to prevent mold in humid UK summers.

3. The “Heat-Scale” Harvest (Ohnivec)

The Ohnivec is your most versatile kitchen tool.

  • Yellow stage: Mild and sweet—perfect for a “pepper and onion” side dish.

  • Red stage: The “Fiery Boy” lives up to its name. Use these for spicy goulash or hot salsas.

4. Humidity Control (Scotch Bonnet & Dragon Tongue)

While the Scotch Bonnet loves heat, it hates bone-dry air, which can cause flower drop. On hot July days, “mist” the greenhouse floor with water to keep humidity up. Conversely, ensure the Dragon Tongue gets direct, unshaded sun—the purple “tongue” stripes are a reaction to UV light.

5. The “End of Season” Race (Oct – Nov)

As UK nights cool down, ripening slows. For any Lemon Drops or Scotch Bonnets still green in October:

  • Move pots indoors to a conservatory.

  • Strip off excess leaves to let the weakening sun reach the fruit directly.

  • If a frost is forecast, harvest all remaining fruit; even green chilies make great fermented “green sauces.”