(Further to the gardening verses in walkaboutsverse.741.com)

Green gardening is native gardening, and vegetables, plus other consumables, should be the only exotic-flora we plant - as doing so can help limit food-miles, etc. By filling our other garden spaces with natives, we use less water and other resources, whilst aiding the native-fauna that, over the centuries, have evolved with them.
(Even high-nectar exotics, such as Buddleia, that are very attractive to SOME native-fauna, should be avoided, because they upset nature's/God's balance – God created evolution, too, that is.)
Our green gardens, with their vegies and natives, can be made still greener by the addition of compost heaps/bins; a wildlife pond – for native frogs, newts, etc, rather than exotic goldfish; bee- and bird-boxes, plus carefully selected feeders; rain- and grey-water vats; by growing everything organically, including thrifty home-propagation/species-swapping; and by leaving some lush untidy patches, decaying branches, etc.