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July 12, 2023

How to Build a Straw Bale Greenhouse

straw bale greenhouse

If you're searching for an eco-friendly and easy to assemble greenhouse, a straw bale greenhouse might be just what you're after. These versatile structures can be used for growing warm-season crops such as tomatoes.

Plaster your bales to protect them from the weather and extend their lifespan, as this will stop them rotting and encourage long-term use.


Building a straw bale greenhouse has many advantages, from being cost-effective and eco-friendly, to offering insulation. But before beginning such an endeavor, it's crucial that all factors involved are carefully considered so you can rest assured your finished greenhouse will work as intended and last years into the future.

Straw bale greenhouses also consume less energy than traditional homes due to the fact that growing the straw requires very little energy, while its use as building materials costs much less than concrete or wood. Furthermore, straw bales are renewable resources made of agricultural byproducts which don't release toxic emissions when decomposed compared with concrete and wood materials.

Bales themselves provide an eco-friendly means of insulation; as byproducts from grain production processes they are renewable resources that can be reused over and over again unlike lumber products. Furthermore, bales contain far fewer harmful toxins than fiberglass insulation typically found in traditional homes.

Straw bales offer several environmental advantages over conventional home construction methods, with recycling or composting becoming easy options for homebuilders. Furthermore, their cost of construction is considerably less as load bearing walls can be constructed out of bales supported by piers.

Environmentally friendly

Straw bales offer an eco-friendly choice for greenhouses thanks to their insulating properties, made possible by being harvested locally at minimal costs and used as an abundant, locally harvested, low cost resource. Furthermore, they can serve as growing medium in greenhouses with concrete or paved floors - although be wary if growing plants in these materials as moisture may seep through and rot the bales over time.

Suzy and her friend constructed the frames using locally milled rough-sawn pine and fir from local mills, using sandbags as an inexpensive alternative to concrete foundation. She hopes that in future projects she may incorporate an earth bag cap for more sustainable results.

Straw bales offer another advantage in terms of weather protection. Their sturdy construction allows them to withstand heavy rainfall without becoming saturated, while providing shelter during snow storms. However, it should be remembered that straw is porous material which must be protected with quality plaster in order to ward off moisture damage.

Straw bale greenhouses require a strong foundation, so it is wise to build them using a hybrid system in which bales serve as load bearing structures while the frame supports solar walls. This approach is more cost-effective than using full bale and wooden frame greenhouse construction methods.

Easy to build

Building a straw bale greenhouse is relatively straightforward and does not require expert craftsmanship; however, some key points must be kept in mind to ensure its success. First and foremost, all bales need to be plastered with cement to protect them from rain; otherwise they may rot under constant exposure leading to its collapse during stormy conditions. Second of all, ensure that its design fits with your climate's specific conditions by capping with render to reduce fire risk; furthermore seek professional advice if building in bushfire prone areas.

Operable windows should also be considered when building a straw bale greenhouse, as these allow you to adjust humidity levels for optimal growth and monitor temperatures - something especially crucial when cultivating frost-tolerant vegetables like carrots and turnips.

If you are considering building your own straw bale greenhouse, step-by-step instructions from various websites provide invaluable assistance. They include materials lists and cost breakdowns while offering tips to minimize costs during construction.

Easy to maintain

Straw bale greenhouses provide a straightforward, inexpensive, and eco-friendly method of cultivating vegetables. This type of greenhouse can also help mitigate issues related to soil-borne disease or space limitations. When gardening with straw bales it's important to remember that hot weather requires extra watering compared to cooler climates where the straw keeps the ground hydrated naturally.

Building a straw bale greenhouse requires careful thought about its overall design. A great design will enhance weather protection and durability of the building while also helping prevent pests or weeds from invading, maintaining proper humidity levels, as well as helping safeguard bales against rot.

Straw bale greenhouse designs should take into account what types of plants you wish to grow, with nasturtiums and marigolds performing particularly well along the edges of straw bale walls, serving to repel pests while providing beautiful color to any garden. In addition, these easy-care flowers provide ample nutrients while compost can also help enrich soil. In order to keep the garden healthy and avoid overheating in summer months, openings for ventilation might also be advisable.