Ornamental onions shine in summer
Photo/Illustration: Jennifer Benner
In early summer, stars of Persia (Allium christophii
, USDA Hardiness Zones 5–8) produces starry, silvery amethyst flowers on a flower head 10 inches or more in diameter on 18-inch-tall stems. For long-lasting bright yellow flowers that sparkle in midsummer, try golden garlic (Allium moly
and cvs., Zones 3–9). It is robust, hardy, and an excellent cut flower, naturalizing and increasingly happy in the sun in most garden soils. You will welcome its return each year if you plant the top of the bulb just at surface level and don’t overwater, keeping it moist but not wet.