>>2702064I live in the UK and last year I had an insane number of spiders in my garden. It was like an invasion.
I think what they like is shade and food. Shaded garden is ideal. I let my garden grow wild, didn't cut the lawn. It grew to 2 foot high with weeds and wild flowers. And I also grew climbing plants (peas/beans). Spiders will come where the food is, and multiply as much as the food can sustain them. Their food is insects and flies. So just grow tall plants which attract insects - flies, butterflies, beetles, moths, other spiders. They'll all come once it becomes the place to be.
The spiders made webs all across the tall plants so that it was covered in silk. Anywhere I looked, there were spiders. If I moved any rock or blade of grass, 10+ spiders ran away from many species. In a 1m square section there were about 50 spiders.
The other thing I discovered is frogs love spiders. I have no pond, no water source. But I had lots of frogs. The long grass and lots of spiders to eat meant little frog bros were hanging around.