Shop by Cloche Type

Choosing the Right Glass Cloche Size for Your Garden

Traditional horticultural glass cloches are available in several sizes, each designed for a specific stage of vegetable growing. Whether you are protecting newly sown seeds, encouraging early growth, or covering taller crops, selecting the correct cloche type will make a significant difference to your results.

Our range includes three proven designs used by gardeners and growers across the UK:

  • High Barn Cloches
  • Low Barn Cloches
  • Seedbed Cloches

Each style creates a protective microclimate, helping crops establish earlier, grow stronger, and remain protected from unpredictable UK weather.

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High Barn Glass Cloches

High Barn cloches are the tallest option and are designed for crops that require more vertical growing space. They are ideal for gardeners who want to protect larger plants while still allowing airflow and strong light penetration.

These cloches are particularly useful once seedlings have established and need continued protection during early growth.

An assembled barn glass horticultural cloche

Best uses for High Barn cloches

High Barn cloches work especially well for:

  • Early brassicas such as cabbage and cauliflower
  • Young tomato plants during cold spells
  • Taller salad crops
  • Extending the season for established plants
  • Protecting crops from late spring frost

The increased height helps prevent plants from touching the glass too early, which allows crops to grow more naturally while still benefiting from the warmth created under the cloche.

Growers often use High Barn cloches along longer rows to maintain consistent protection across a planting area.


Low Barn Glass Cloches

Low Barn cloches are one of the most widely used traditional garden cloches. They offer excellent protection for many common vegetable crops during their early stages and are especially popular among allotment gardeners.

Their lower profile makes them very effective at trapping warmth close to the soil, helping seeds germinate faster and encouraging strong early growth.

An assembled Low Barn glass cloche on a lawn

Ideal for early vegetable production

Low Barn cloches are commonly used for:

  • Lettuce and salad leaves
  • Early carrots
  • Spinach and leafy greens
  • Beetroot
  • Spring onions

Because they retain heat efficiently, these cloches are often used at the beginning of the growing season when soil temperatures are still low.

Many gardeners place Low Barn cloches over rows in late winter or early spring to warm the soil before planting.

Assembly Instructions for High and Low Barn Cloches

Assembly Instructions 


Seedbed Cloches

Seedbed cloches are designed specifically for protecting newly sown seeds and very young seedlings. They sit lower to the ground and create a stable, sheltered environment that encourages successful germination.

For growers starting crops early in the year, Seedbed cloches are one of the most effective tools available.

Small seedbed  glass cloche protecting tomato seedlings

Perfect for germination and early protection

Seedbed cloches are ideal for:

  • Newly sown vegetable seeds
  • Carrots and root crops
  • Early salad crops
  • Nursery beds and propagation areas
  • Hardening off young plants before transplanting

They help maintain warmth and reduce exposure to wind, heavy rain, and sudden temperature drops, which are common challenges in UK gardens.

Serious growers often use Seedbed cloches as the first stage of crop protection before switching to Low Barn or High Barn cloches as plants develop.

Assembly Instructions for Seedbed Cloches

Assembly Instructions


Why Different Cloche Sizes Matter

Using the correct cloche size helps you manage crop development more effectively throughout the season.

Many experienced gardeners use a progression:

Seedbed cloches → Low Barn cloches → High Barn cloches

This method allows crops to remain protected at each stage of growth while maximising light and space.

Glass cloches also provide advantages that plastic covers often cannot match, including:

  • Excellent light transmission
  • Consistent warmth retention
  • Long-term durability
  • Reliable performance in windy conditions

For growers looking to improve early harvests and reduce crop losses, traditional glass cloches remain one of the most practical solutions available.


Cloches for Allotments and Kitchen Gardens

All three cloche types are widely used in UK allotments, kitchen gardens, and small-scale vegetable plots. They allow gardeners to make better use of limited space by producing earlier crops and extending the growing season.

Whether you are starting seeds in early spring or protecting developing plants from late frosts, choosing the right cloche design will help you get the best results from your garden.


Explore Our Range of Glass Cloches

Browse our selection of High Barn, Low Barn, and Seedbed glass cloches below to find the right option for your growing needs. Each cloche is designed to provide dependable crop protection and help serious gardeners grow successfully throughout the season.

Not sure which to choose? See our guide to the best garden cloches in the UK?

Here is a guide