This suggests that it takes just 3 years to see a dramatic improvement in the biodiversity in your patch, even in a city, if you sow seeds of plants indigenous to your area. https://www.resurgence.org/magazine/article6267-urban-greening.html
Here's a snippet: "Mata and his team sowed indigenous seeds in a small space in Melbourne that was previously what they described as a “disturbed lawn with just a single tree on it” and changed it into a rich and diverse plant community. Within three years they reported a huge range and number of insects."
Here's a snippet: "Mata and his team sowed indigenous seeds in a small space in Melbourne that was previously what they described as a “disturbed lawn with just a single tree on it” and changed it into a rich and diverse plant community. Within three years they reported a huge range and number of insects."
