In the hills above San Jose, amongst twisty roads and the occasional grazing cow, a magnificent flower garden blooms every spring. Nola’s Iris Garden is a gorgeous place to visit while out on a drive, with a whole parking lot set up for visitors to gawk at gorgeous ruffled flowers in every color from brown to tangerine. But while it’s open to the public during the bloom, the garden is actually more of a working farm, where the owners Nola and Gary Prevost propagate thousands of Iris germanica plants for future sale. …