Greenhouses Explained: How They Work and What You Need

Greenhouses—glass or polycarbonate structures from simple garden frames to complex biospheres—convert sunlight into thermal energy, enabling year-round growing in any climate.

Heat Retention Mechanics

Thermal mass objects (bricks, soil, clay pots, water) absorb daytime solar heat and release it at night, stabilizing temperatures. Ventilation generates convection currents for air exchange.

Critical Siting

Maximum sun exposure is non-negotiable. Avoid shadows from trees, buildings, or terrain. Full solar access drives the system.

Protective Benefits

Greenhouses shield plants from wind, rain, pests, and temperature extremes. Cross-pollination via introduced insects and proper ventilation optimize growth. Cold climates may need supplemental heating.

Buying & Maintenance

Choose curved/bent glass or polycarbonate from garden centers, online, or construction firms. Ensure ventilation and heating (for harsh winters). Contact the builder or a greenhouse repair specialist for issues.