How to Trim Petunia Plants

Petunias are annuals with large colorful flowers that come in both solid and striped shades. They don't tolerate frost and should be planted outside after the danger of frost. As with most flowering plants, removing wilting blossoms will encourage new flowers. Occasionally it is necessary to trim the petunia plants, especially when the petunia has stretched across the yard and few flowers are on the stems.

Things You'll Need

• Garden sheers
• Dish soap

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Instructions

1. • 1

     Sanitize the gardening sheers with liquid dish soap and water. Rinse them well and dry them thoroughly. Always cut plants with a clean gardening tool to avoid spreading disease.

   • 2

     Cut off long stems that are sparsely flowered. Severely cutting back the petunia plant will encourage new growth. This might be mid-season.

   • 3

     Cut off any unwanted growth to shape according to your personal preference.