Half Prop Lids

Same trick as its big sibling, scaled down for smaller batches: pop this lid over a half tray and you've built a warm, humid pocket that gets stubborn seeds moving and cuttings rooting faster than they would out in the open air. It's a small piece of kit that punches well above its size — ventilated so you can dial back the humidity as things get going, and light enough to stack away when you're between sowings.