When we moved into our current house, there wasn't much planting space on the ground, so I had the idea to buy 20 small, metal planters to hang off the slats of fence. They are 12cm tall with a 14cm diameter. I planted them all up over the years but most of the plants have since died. I've realised that's most likely because the conditions in the pots are very harsh what with them being small and metal, and I didn't water them twice a day in summer like I probably should have, or repot them enough.
Now we have a toddler, so I definitely wouldn't have time to care for them properly if I planted them all up again.
They are still all hanging on the fence, and look nice as they are, if a bit bare, but I was wondering if there was something I could do with them that would be very low maintenance, while also benefiting wildlife - in particular pollinators. I am very focused on helping pollinators and so far have really only done so by buying only pollinator-friendly plants for the ground space we do have, which I am happy to say are mostly all alive and doing well.
Any ideas?