Lean To Greenhouses

The primary advantage of a lean-to greenhouse is its ability to retain heat. By leaning against a brick or stone wall, the structure benefits from the "thermal mass" of your home, which helps maintain a more stable temperature overnight. They are also incredibly space-efficient, making them the perfect choice for smaller gardens or paved areas where a standalone apex greenhouse might not fit

For the best growing results, you should ideally mount your lean-to against a south or south-west facing wall. This ensures the structure receives the maximum amount of sunlight throughout the day. It is also important to ensure the wall is flat, vertical, and in good structural condition, as the greenhouse frame will be anchored directly to it for stability

An "open back" lean-to greenhouse uses your existing house or garden wall as the internal rear surface, which is excellent for heat absorption. A "solid back" model comes with its own rear panel, which can be useful if you are placing the greenhouse against a fence or a less-than-perfect wall. Both designs provide a sturdy, enclosed environment for your plants, though solid-back versions can sometimes offer slightly better insulation in very exposed spots

Yes, a level and stable base is essential to ensure the frame aligns perfectly with your wall. We recommend a solid concrete pad or a perimeter of level paving slabs. If the base isn't perfectly flat, the greenhouse door may stick, and the glazing panels could be put under unnecessary stress. Ensure the base is large enough to accommodate the footprint of the frame and allow for proper drainage.

Because they are often positioned against a heat-retaining wall, lean-to greenhouses can get very warm during the height of summer. Our models typically feature roof vents (often with automatic openers) and sliding doors. On sunny days, it is vital to keep these open to prevent scorching. Using shading blinds or "shading paint" on the glass can also help regulate the temperature during the hottest months.

Lean-to greenhouses are perfect for heat-loving plants like chillies, peppers, and tomatoes. The extra warmth from the wall also makes them ideal for early-season seed starting and for overwintering delicate plants like citrus trees and geraniums. If your lean-to is near a kitchen door, it also makes a highly convenient, frost-free home for a year-round herb garden.