Jamie Walton | Nettles & Petals on Instagram: "DIY Hay/Straw Bale Cold Frame 🌾❄️ A great way to extend your outdoor growing season is by making this simple hay bale cold frame. 😊🌾 It can be scaled up or down depending on your growing space too. If you have a large vegetable garden then simply add more bales, or if you only have a balcony garden or yard, take some away. Even though they do differ, both hay or straw can be used for this, and as I only had a few of each we used both for this one