Black tub holds the water.
There is a float inside the pvc pipe to keep the water level within the pipe constant.
The holes in the pipe are to accommodate a 2 inch net cup (from hydroponics) that is in the bottom of the baskets.
Baskets are used (with landscape fabric to hold in potting soil) because roots are "air pruned" instead of growing in circles around a solid pot.
Keeping the tub full means no watering of the garden (self watering) and it is slightly elevated which means rabbits (and chickens) don't seem to notice/bother it.
google/search "rain gutter garden system" and you'll find links for it.
I found out about it here on BYC from a post by @chickadoodles .
There is a float inside the pvc pipe to keep the water level within the pipe constant.
The holes in the pipe are to accommodate a 2 inch net cup (from hydroponics) that is in the bottom of the baskets.
Baskets are used (with landscape fabric to hold in potting soil) because roots are "air pruned" instead of growing in circles around a solid pot.
Keeping the tub full means no watering of the garden (self watering) and it is slightly elevated which means rabbits (and chickens) don't seem to notice/bother it.
google/search "rain gutter garden system" and you'll find links for it.
I found out about it here on BYC from a post by @chickadoodles .