sallybotham.co.uk DIY Mini Greenhouse: Grow Your Own Goodness! Ready to extend your growing season or protect your delicate seedlings? Building a mini greenhouse is a fun and rewarding project. This guide will walk you through creating your own, simple and effective, mini greenhouse.
Materials You'll Need:
- Clear plastic sheeting (polyethylene film)
- PVC pipes (1/2 or 3/4 inch diameter recommended)
- PVC pipe cutter or saw
- PVC pipe cement (optional, for a more permanent structure)
- Wooden boards (for the base – size depends on your desired greenhouse dimensions)
- Staple gun and staples
- Measuring tape
- Scissors or utility knife
- Clamps or weights (to hold things in place while assembling)
Step 1: Build the Base First, construct the base of your mini greenhouse using the wooden boards. Decide on the size you want. A good starting point might be 2ft x 4ft, but adjust to suit your needs. Cut the boards to length and assemble them into a rectangular frame. Secure the frame with screws or nails. Ensure the frame is stable and level.
Step 2: Cut the PVC Pipes Now, measure and cut the PVC pipes to create the frame of the greenhouse. You'll need pipes for the hoops that form the roof and pipes for vertical supports (if desired). The length of the hoop pipes will depend on the width and height you want for your greenhouse. Generally, longer pipes create taller, more curved roofs. A simple formula to estimate hoop length is: Width + (2 x Height) + some extra for burying into the ground or attaching to the base. Cut the PVC pipes accordingly. The number of hoops will dictate the structural integrity. Consider spacing them 1-2 feet apart. Vertical supports will add additional strength, especially in windy areas, and can be attached to the base frame and the hoops.
Step 3: Assemble the PVC Frame Form the hoops by bending the cut PVC pipes. You can either insert the ends of the hoops directly into the ground (if you have soft soil) or attach them to the wooden base. If attaching to the base, you can use PVC pipe cement to create a permanent bond or use clamps/brackets to secure them. For the vertical supports, attach them to the base frame and then connect them to the hoops using PVC cement or clamps. This will provide extra stability. Ensure all hoops are evenly spaced and that the frame is symmetrical.
Step 4: Cover with Plastic Sheeting Carefully drape the clear plastic sheeting over the assembled PVC frame. Ensure the plastic covers the entire frame, with some overlap on all sides. Secure the plastic to the wooden base using a staple gun. Pull the plastic taut as you staple to avoid wrinkles and sagging. Overlap helps to keep moisture and air in the greenhouse. Trim off any excess plastic with scissors or a utility knife, leaving a small amount of extra for tucking in.
Step 5: Create an Entrance To allow access to your plants, you'll need to create an entrance. You can create a simple flap by cutting a section of the plastic sheeting and securing it with Velcro or clips. Alternatively, you can create a more elaborate door using a small wooden frame covered with plastic sheeting and hinged to the main structure.
Step 6: Secure and Ventilate Weigh down the edges of the plastic sheeting with rocks, bricks, or sandbags to prevent it from blowing away in the wind. Proper ventilation is crucial to prevent overheating and humidity build-up. You can achieve ventilation by creating small vents at the top or sides of the greenhouse. Simply cut small holes in the plastic and cover them with mesh to prevent pests from entering. You can also partially open the entrance flap for ventilation.
Conclusion: Your Mini Greenhouse is Ready! Congratulations! You've successfully built your own mini greenhouse. Now you can start growing your favorite plants, protect them from frost, and extend your growing season. Experiment with different plant varieties and enjoy the fruits (or vegetables) of your labor! Remember to monitor temperature and humidity levels inside the greenhouse and adjust ventilation accordingly.
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