Troubleshooting Chilli Problems

Chilli peppers—fiery, vibrant and bursting with flavour. They’re the gems of any spice lover’s kitchen and a gardener’s pride! But growing and maintaining healthy chilli plants? It can be as challenging as the heat level of a Carolina Reaper. Fear not! Whether you’re a home cook dreaming of fresh, homegrown peppers or a gardener nurturing your fiery crop, we’ve got you covered. 🌶️

Chillies can be temperamental, but with the right knowledge, you can tackle even the most stubborn problems. From flower and leaf drop to aphids and mildew, let’s take a deep dive into the most common chilli woes and how to fix them.

1. Flower Drop

The Problem

Ever noticed flowers falling off your chilli plant before fruit forms? Frustrating, isn’t it? This often happens due to extreme temperatures, inconsistent watering or high humidity levels.

The Fix

Keep your chilies happy by maintaining stable conditions.

  • Ensure consistent watering—never too dry or waterlogged.
  • Place plants where they’ll enjoy plenty of light but are shielded from scorching midday heat.
  • If growing indoors, consider a fan to simulate natural pollination and airflow.

2. Leaf Drop

The Problem

Your chilli plant may shed leaves due to stress from overwatering, pests or sudden environmental change. It’s like their silent way of saying, “I’m not okay!”

The Fix

  • Check soil moisture—water only when the top 2–3 cm feels dry.
  • Inspect plants for pests like aphids (we’ll talk more about those pesky intruders later).
  • Be gentle with relocation—gradually acclimatise plants to new environments if needed.

3. Corking

The Problem

Those small, brownish cracks on chilli skin might alarm you, but guess what? Corking is your chilli’s badge of honour! It indicates maturity and adds rustic charm.

The Fix

No fix needed! Corking isn’t a problem—it’s a sign of well-loved chillies. Lean into the natural look and enjoy the rich flavour!

4. Damping Off

The Problem

If seedlings collapse at their base, you’ve fallen victim to damping off—a fungal issue caused by excess moisture.

The Fix

  • Always use sterile soil and clean pots when sowing seeds.
  • Water carefully to avoid soggy soil.
  • Get a head start with seedlings indoors in a controlled environment.

5. Grey Mould and Powdery Mildew

The Problem

These unsightly fungal problems can spread fast, clouding your chilli plant’s leaves with grey fuzz or white powder-like spots.

The Fix

  • Trim affected foliage and dispose of it (don’t compost it!).
  • Create space between plants for better airflow.
  • Use a natural fungicide like neem oil to prevent further spread.

6. Viruses

The Problem

Yellow patches, twisted leaves and stunted fruit growth could point to a virus infection. Unfortunately, this is often spread by pests or infected soil.

The Fix

  • Remove infected plants to protect healthy ones.
  • Regularly check for pests and dispose of any infected soil.
  • Always sterilise gardening tools between uses.

7. Bacterial Spot

The Problem

You’ll notice small, water-soaked dark spots on the leaves when chilli plants encounter bacterial infections.

The Fix

  • Avoid wetting the leaves during watering—focus on the base of the plant.
  • Use copper-based sprays to help control infection.

8. Slugs & Snails

The Problem

It’s disheartening to wake up to holes in your leaves, courtesy of these slimy invaders.

The Fix

  • Lay down barriers like crushed eggshells, coffee grounds or diatomaceous earth.
  • Use organic slug pellets or beer traps to keep these munchers at bay.

9. Aphids

The Problem

Tiny but mighty, aphids attack in clusters, sucking the life out of your plant and causing leaf curling and yellowing. They’re the ultimate nemesis for any gardener.

The Fix

  • Spray them off with water or wipe leaves with soapy water.
  • Release natural predators like ladybirds into your garden.
  • Treat infestations with neem oil or insecticidal soap.

Pro Tips for Healthy Chillies

  • Fertilise Wisely: Feed your chilli plants regularly with a balanced fertiliser, but don’t overdo the nitrogen—too much encourages foliage at the expense of fruit.
  • Sunlight is Key: 6–8 hours of sunlight daily is ideal for their growth and fruiting.
  • Rotate Crops: Avoid planting chillies in the same place every year to reduce pest and disease build-up.

Keep Growing, Spice Lovers!

There’s no denying that chilli problems can feel like a challenge, but with patience and the tips above, you’ll grow healthy, vibrant plants that reward you with fiery flavours and colourful delights.

Have a chilli success story or question? Drop a comment below or connect with fellow spicy gardeners in our online community! You don’t have to tackle these challenges alone. 🌱

Happy gardening—and here’s to hotter, healthier harvests!

Further Reading: How to Choose Which Chilli Plants to Grow, Chilli Plant Care: From Sowing Seeds to Overwintering

Take a look at SowItGrowItandFeast – Chillies

Discovering the Scoville Scale

As a gardener, you must have heard of the Scoville Scale. It’s the universal standard used to measure the heat of peppers, but it’s become much more than that for gardeners. The Scoville Scale is a must-know for people who want to grow, harvest, or taste peppers. It’s a tool that allows you to identify the heat levels of different types of peppers and determine what works best for you. In this blog post, we’ll dive into everything you need to know about the Scoville Scale and how you can use it to your advantage.

Understanding the Scoville Scale

The Scoville Scale is a measurement of the heat in peppers. The scale was developed by an American pharmacist named Wilbur Scoville in 1912. The heat of a pepper is measured in Scoville Heat Units (SHU). The higher the SHU value, the hotter the pepper. The most common peppers used to measure heat levels include jalapenos, habaneros, and ghost peppers. The scale ranges from 0 SHU for sweet bell peppers to 2.2 million SHU for the Carolina Reaper, the hottest pepper in the world.

Image Credit: Carolina Reaper Seeds

Determining the Heat Level of Peppers

The heat level of peppers is determined by the amount of capsaicin, the compound responsible for causing the “burning” sensation. Capsaicin is found in the placenta, the white membrane that surrounds the seeds. Generally, the smaller the pepper, the hotter it is. However, heat levels can also vary within the same type of pepper based on growing conditions, climate, and the plant’s genetics.

Choosing the Right Pepper for Your Recipe

Now that you understand the basics of the Scoville Scale, you can use it to your advantage. Knowing the heat level of different types of peppers can help you select the right pepper for your recipe. For example, if you’re making a mild salsa, you can use sweet peppers, which have a SHU value of 0. However, if you want some heat, you can use jalapenos, which have a SHU value of 2,500 to 8,000. If you’re looking for something hotter, you can try using habaneros, which have a SHU value of 100,000 to 350,000. However, be careful not to overdo it as these peppers can be extremely hot.

Growing Peppers Based on Heat Level

If you’re planning to grow peppers in your garden, you can also use the Scoville Scale to your advantage. You can choose to grow sweet peppers, which are mild, or you can grow hot peppers, which are spicy. When growing peppers, be sure to select the right variety based on the heat level you’re looking for. You can also use the Scoville Scale to monitor the growth of your peppers. Generally, hotter peppers take longer to mature, so you can use the SHU value as an indicator of when your peppers are ready to be harvested.

The Scoville Scale is an essential tool for anyone interested in growing or cooking with peppers. It allows you to determine the heat level of different types of peppers and use them to your advantage. Whether you’re making salsa, growing peppers in your garden, or trying different types of peppers, understanding the Scoville Scale will ensure that you have the right pepper for your needs. So, go ahead and add some spice to your life with the Scoville Scale!