A Guide to Modern Greenhouses: History, Siting, and Ventilation Essentials

Britain's unpredictable weather makes greenhouses essential for serious growers. Today's structures are technical marvels that provide optimal growing conditions year-round. Here's what you need to know.

Brief History

• Ancient roots – Romans wheeled plants on carts between sun and shelter.
• 13th century – "Botanical gardens" arrived in England and the Netherlands from Italy.
• 19th century – London's Crystal Palace (1851) set the glass-house standard.
• 1960s breakthrough – Polyethylene film enabled affordable, large-scale greenhouses; gutter-connected systems improved heating efficiency.

Siting Your Greenhouse

Orientation is critical:

• Northern Hemisphere – longest side faces south
• Southern Hemisphere – longest side faces north

Avoid shade from trees or buildings. Maximize winter sun exposure while allowing summer ventilation.

Ventilation: Non-Negotiable

Proper airflow prevents:

• Pest and disease buildup
• Overheating
• Stagnant air that inhibits photosynthesis and pollination

Include roof vents, side louvers, and automated vent openers for climate control.

For quality greenhouse structures, visit Betta Buildings.