How to Use Barn Cloches
🌿 How to Use Garden Cloches – A Practical Guide for UK Gardeners
Using garden cloches is one of the simplest and most effective ways to protect plants and improve growing conditions in UK gardens. Whether you’re growing vegetables, salads, herbs, or flowers, cloches help create a warmer, more sheltered environment for healthy growth.
This guide explains how to use cloches properly, when to use them, and how to get the best results throughout the growing season.
🌱 What Does a Garden Cloche Do?
A garden cloche acts as a protective cover, creating a mini greenhouse effect around your plants. It helps to:
- Retain warmth and protect against frost
- Shield plants from wind and heavy rain
- Keep pests such as birds off young crops
- Warm the soil for earlier planting
🛠️ How to Use Garden Cloches (Step-by-Step)
1. Position the Cloche Correctly
Place the cloche directly over your plant or row of seedlings, ensuring it fully covers the growing area.
- Push gently into the soil for stability
- Some small gaps in between the row of Barn cloches is good as it provides ventilation which is useful to mitigate fungal diseases
2. Use Cloches to Warm the Soil
For best results, place cloches over empty soil 1–2 weeks before planting.
This:
- Warms the soil
- Encourages faster germination
- Gives plants a strong early start
3. Ventilate on Warm Days
Cloches can heat up quickly, even in mild UK weather.
- If mature plants no longer need the cloche protection, for example on warme summer days, lift the cloches and place to one side.
👉 This prevents overheating and plant stress
4. Secure in Windy Conditions
British weather can be unpredictable, so make sure your cloches are stable.
- The glass barn cloches are very stable and resistant to wind. For extra security, press some soil along the base of the cloches.
5. Remove or Adjust as Plants Grow
As plants develop, they may outgrow the cloche.
- Remove once frost risk has passed
- Or reposition to protect nearby plants
🌦️ When to Use Cloches in the UK
Garden cloches are useful throughout much of the year:
Early Spring:
- Warm soil and protect seedlings from frost
Late Spring:
- Protect young plants from cold nights
Autumn:
- Extend the growing season
- Protect crops from early frosts
Winter (mild conditions):
- Shield hardy plants from harsh weather
🌼 Best Plants to Use with Cloches
Cloches are ideal for:
- Lettuce and salad crops
- Carrots and early vegetables
- Strawberries
- Herbs
- Young flower plants
🌿 Tips for Best Results
- Use glass cloches for better light and durability
- Check plants regularly, especially in sunny weather
- Avoid overcrowding inside the cloche
- Clean glass occasionally to maximise light
🌧 Watering
- The plants under the cloches will quickly find water. It is normally sufficient to water over the cloches. Or let the rain do its job. As the plant roots spread sideways, the root system gets bigger and this improves the plant growth.
- This type of watering means the soil surface inside the cloches remains reasonably dry. This is good as it helps prevent fungal diseases and also it make for a very unpleasant surface for slugs to navigate. Especially, the little keel slugs that live below the soil surface and emerge at night.
❓ Common Questions
Do cloches need ventilation?
Ventilation is good as it helps prevent fungal diseases. The gaps between the row of cloches and the open ends are usually sufficient for a good air flow. During hot summer days, lift and set aside the cloches.
Can cloches stay on overnight?
Yes, they are most useful at night to protect against frost.
When should I remove a cloche?
If needed, once temperatures are consistently warm and plants are established.
🛒 Explore Our Garden Cloches
If you’re looking for traditional glass garden cloches in the UK, explore our range designed for long-lasting performance and effective plant protection.