Both a fine art and a science.
Salt tolerance is different in each species, and even often among plants of the same species.
A vegetable garden does not have to look like an old shoe. There's no reason to not combine flowers and good design with edibles.
Whether you live in an apartment in the city or in a cottage by the beach, a window box makes a lovely planter for flowers.
Choosing a garden style is a little like getting dressed.
Planting for different seasons of bloom and color.
You can have it all and eat it too in the backyard garden. Are you tired of the same old potatoes, tomatoes, and beans routine? Do you want to replace the old waltz with a new minuet that satisfies the aesthetic soul as well as the cravings of the flesh?
Why grow daffodils? The question might better be asked, Why NOT grow them? Few plants can boast the daffodil's combination of adaptablilty, reliability, low maintenance, and pest resistance.