Problems With Wave Petunias


Wave petunias are very easy to grow compared to regular petunias. They do not need constant deadheading and pinching back, and they bloom profusely all season long with proper watering and fertilization.


Plant wave petunias in different soil each year. Plant them in a different spot in the ground, or for containers and hanging baskets, change the soil annually.

Yellowed Leaves

Yellowed leaves usually indicate a need for nutrients. Apply a soluble fertilizer up to twice a week for container plants, of weekly for in-ground plants, and keep the plants watered. Do not allow the soil to dry out.


Small chewing insects or caterpillars are the most common insect pests. Use an organic insecticide such as Bacillus thuringiensis (Bt) or diatomaceous earth following package instructions.

Rabbits love petunias. image by "Honey, I know what happened to your petunias!!!!" is Copyrighted by Flickr user: lepiaf.geo (Gordana Adamovic-Mladenovic) under the Creative Commons Attribution license.


The mysterious disappearance of your wave petunia flowers may be due to rabbits. Dust the plants with cayenne pepper powder to repel them.

Stringy Growth

Late season growth may become long and "stringy". Prune off a few inches from the tips of the long strands, and fertilize twice weekly. Bushier growth should appear in 10 to 14 days.


  • University of North Dakota, petunia
  • Stokes Seed Catalog, 2009 edition
  • Burpee Seed catalog, 2009 edition

Who Can Help

  • Wave Petunia Official Website
Keywords: wave petunia problems, tips to grow wave petunia, questions about wave petunia

About this Author

Fern Fischer is a freelance writer with more than 35 years' experience. Her work has been published in various print and online publications. She specializes in organic gardening, health, rural lifestyle, home and family articles. Fischer also writes about quilting and sewing, and she professionally restores antique quilts to preserve these historical pieces of women's art.