(Feijoa sellowiana) These handsome evergreen grow slowly up to 10 feet tall and wide. Edible white flowers have an exotic look, with long, bright red stamens topped with large grains of yellow pollen. These fragrant blooms attract hummingbirds and bees and taste like cinnamon cotton candy. Plants are Hardy to about 15 degrees Fahrenheit. USDA Zones 8-11. 1 gallon pot.