Reblooming iris are heavy feeders. After the June flower flush, fertilize with an all-purpose granular flower fertilizer or several gallons of a water-soluble type, to help the plants reenergize.

If you're looking to start a pollinator garden, planting to improve biodiversity, or itching to attract goldfinches, favor single-flower varieties over their ruffled or pom-pom double ... Removing the ...