To fuel our bodies, we must eat other living things, killing them in the process. However, most plants and algae are autotrophs. They bootstrap their biomass without the barbarism of eating others: using photosynthesis, turning sunlight, water, and carbon into energy.
When considering the cheapest fruit to grow, you want something that's high-yielding, low-maintenance, and ideally fast-growing. Cheap can also be relative - if a fruit is generally affordable and available in stores, it's probably not worth the effort and garden space to grow it yourself.
Crushed clean, dry eggshells, when scattered over the soil, are intended to stop adult gnats from laying eggs and potentially add natural fertilizer. However, they merely sit on the surface, collecting dust, while the gnats remain attracted to the damp compost.
The STEM Flying Insects Fan Trap uses blue light to attract bugs to come near the opening at the top and a whirring fan to suck the bugs inside, where they get stuck to a circle-shaped sticky glue trap.
Around a third of UK gardeners use pesticides, and our studies found that house sparrow numbers, for example, were nearly 40% lower in gardens where the pesticide metaldehyde was used. By reducing pesticide use, you can actively encourage birds back into your outdoor spaces, as they rely on invertebrates such as slugs and snails as natural prey.
Starting plants from seed extends your relationship with the garden, gives you more control over seed sourcing, and saves real money compared to buying nursery starts, sometimes as much as 90% per plant.