I just planted extensive and expensive foliage at a triplex and the plants need daily watering now, and every other day watering for a few months.

I think for them they like the larger units and many have planted gardens in the back yards.

She has outdoor plants and such.

The plants are oily.

It is like having a bunch of strangers having the power to interfere with your investment.And then there are the board members who decide it's their mission in life to harass owners/tenants about every weird thing, like potted plants on the balcony or whatever.I only bought the one condo, intending to keep it forever and rent it out.  

I wouldn't bother putting in a lawn or do expensive landscaping because tenants cannot be relied on to water the grass or even trees and plants.

I have allowed some requests like I want to plant a garden or I need storage shelves but the sooner they start asking for changes to the structure the more likely they are high maintenence.You could also opt for a pm.

I am thinking about doing a rock garden, super low maintenance plants or mulch.  

They have been 95% full these last two yearsI've done upgrades such as a new shower in one unit, new deck on another, painted a deck on a another unit, new flooring in two units, planted flowers out front for curb appeal.

Giving ordinary people homes in traditional housing developments that are advanced - green, clean, healthy, livable, walkable, integrated wtih the natural communities of non-humans (plants and animals).