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Also, can I use Miracle Grow on daylilies?
Plant daylilies in full sun. Prepare the soil by adding Miracle-Gro® Garden Soil for Flowers. Plant daylilies in spring or fall when the weather is mild. Feed plants regularly during the growing season with Miracle-Gro® Shake 'n Feed® Rose & Bloom Plant Food.
Considering this, how do you fertilize daylilies for reblooming?
Apply a slow-release flower fertilizer in mid-summer, after the first flush of blooms. Sprinkle the fertilizer evenly across the soil around your daylilies using the rate listed on the label, typically about 3 tablespoons per 4 square feet. Do not sprinkle fertilizer on the foliage.
In average garden soil, you can apply a complete fertilizer (like 5-10-5) in springtime. If the soil is poor, add a second application in late summer or fall. Broadcast granular daylily fertilizer on the soil around the plants, but keep it off the leaves of the plant. Wet fertilizer can burn leaves at the base.