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How to Trim Begonias

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How to Trim Begonias

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Overview

Grown as annual bedding plants in much of the U.S., tender perennial begonias require protection from frost. With more than 1,000 species available, begonias grow in a range of size, shape and colors. Attractive foliage varying from deep green to bronze combined with abundant blooms in shades of pink, yellow, orange, red and white creates a striking mass of color to brighten shady nooks. Trim begonias to maintain their size and shape, as they tend to become leggy by midsummer.

Step 1

Cut back begonias by trimming 3 to 4 inches from terminal ends if the plant becomes overgrown or blooming decreases. Regrowth occurs quickly and a flush of new blooms follows.

Step 2

Trim stray stems that extend beyond the shape of the plant to maintain the overall shape. Wax begonias, often used a bedding plants or in window boxes, should be maintained in a rounded mound. Use clippers or snap the stems by hand, taking care not to damage existing foliage.

Step 3

Pinch back the terminal ends of begonias when they are 4 to 6 inches high to force new growth to appear along the stems. Repeat once a week until the plant develops compact foliage. This increases both foliage and blooms.

Things You'll Need

  • Garden clippers/sharp knife

References

  • ACS Distance Education: How To Grow Begonias
  • Clemson University Extension: Growing Begonias Indoors
  • University of Minnesota Extension: Tuberous Begonias

Who Can Help

  • University of Minnesota Extension: Gardening in the Shade
  • University of Florida Extension: Begonia Production Guide
Keywords: trim begonias, pruning flowers, pinch begonias

About this Author

Nannette Richford is an avid gardener, teacher and nature enthusiast with 4 years experience in online writing and a lifetime of personal journals. She is published on various sites, including Associated Content. Richford holds a Bachelor of Science in secondary education from the University of Maine Orono and certifications in 7-12 English, K-8 General Elementary and Birth to age 5.