Practical guides by Bruce Goode
Greenhouse planning
Compare sun, drainage, access, and utility routes before committing to a site.
By Bruce Goode
The most convenient empty corner of the yard is a starting point, not a finished site plan. Look at two or three possible locations and compare how each would work during the months you actually intend to grow.
A spot that looks bright in summer can be shaded by buildings or trees when the winter sun is lower. Observe when direct sun reaches the proposed footprint, and when it leaves. Consider the light needs of your intended plants. Southern and southeastern exposures are often useful starting points in the United States, but nearby obstructions can change the result.
Look for standing water and runoff paths. A greenhouse needs a practical, well-drained site and a suitable base. If grading or drainage work may be needed, include it in the project plan before ordering. Follow the supplier's foundation instructions and obtain site-specific advice where conditions require it.
Walk from the house or tool storage to each proposed spot. Picture carrying plants, potting mix, and water along that route. Check the doorway approach, steps, gates, and places that become slippery. A location that is easy to reach is easier to include in your daily routine.
Map water and electrical routes rather than assuming they can be added cheaply later. Note prevailing winds, nearby branches, and places where snow or debris could fall. Shelter from wind must be weighed against the shade it may create. Have the supplier confirm that the frame, glazing, foundation, and anchoring are suitable for the site's wind and snow conditions.
Before settling on a location, check applicable permits and setbacks with the relevant local office. Put the answers beside your site sketch. Your final choice should account for the way the greenhouse will be built, supplied, maintained, and used.
Further reading
Keep your project notes together. Download the free planning checklist , or explore the greenhouse guide .
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Guides by Bruce Goode