Backyard Greenhouse is a practical do-it-yourself guide that explains how to build a small, inexpensive greenhouse using common materials and simple hand tools. Designed for home gardeners and hobby growers, the greenhouse measures approximately 12 feet by 14 feet and can be constructed in only a few hours for around $100 using lumber, PVC pipe, and plastic sheeting. The guide emphasizes affordability, simplicity, and versatility, making the structure suitable for seed starting, plant propagation, overwintering plants, and extending the growing season. Despite its compact size, the greenhouse is large enough to meet the needs of serious backyard growers while remaining unobtrusive in most residential settings.
The document provides detailed guidance for selecting an ideal greenhouse location based on the intended use. For summer propagation, partially shaded areas are recommended to reduce overheating, while greenhouses intended for growing mature plants or starting transplants should receive maximum sunlight exposure. The guide also discusses drainage, wind protection, access to electricity and water, and methods for controlling heat buildup through shade cloths, white plastic covers, or proper ventilation. Site preparation and proper foundation sealing are emphasized to prevent moisture intrusion and improve long-term durability.
Construction details focus heavily on the use of PVC pipe bows attached to a treated wooden frame using EMT clamps to create a lightweight but durable hoop-house style structure. The guide explains the advantages of using schedule 80 PVC pipe for greater strength, describes proper spacing of the ribs, and details how the mid-rib support system strengthens the greenhouse frame. Instructions are included for assembling the end walls, installing doors, securing the plastic covering, anchoring the greenhouse against high winds, and protecting the structure from snow loads. The publication also covers different greenhouse covering materials, including clear and white copolymer films depending on whether the greenhouse is used for propagation, overwintering, or growing mature plants.
The final sections explain greenhouse operation and year-round uses. Proper ventilation, humidity retention, heating options, and electrical safety are discussed, including recommendations for using GFCI-protected electrical outlets in damp environments. The guide explains that the structure can support moderate snow loads but may require temporary supports during heavy snowfall. It concludes by outlining many practical uses for a backyard greenhouse, including starting vegetable seedlings in spring, propagating plants in summer, growing winter vegetables in fall, and protecting container plants during winter months. Overall, the publication serves as an excellent beginner-friendly guide for building a functional backyard greenhouse with minimal cost and tools.
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