Do Annuals Need Fertilizing

Annuals grow rapidly and need plenty of fuel. Work a slow-release fertilizer into the soil at planting time. Or use a liquid fertilizer on annuals in a garden bed every seven to 14 days.

What is the best fertilizer for annuals?

For flowering annuals, use an all-purpose plant food, such as a 5-10-5 or 10-10-10 formula. Flowering plants have a special need of phosphorous and potassium to realize their blooming potential. Foliage plants will flourish with a formula higher in nitrogen (the first of the three numbers in a fertilizer formula).

Should you fertilize annuals after planting?

All other annual flowers need to be fertilized at least once, if not twice a week. You should fertilize those annuals whether they are planted in a pot or in a garden bed, Weber said. … Pour the liquid fertilizer onto the soil over the roots of the plant. Don’t overfertilize.