How to Grow Dwarf Mexican Petunia


Ruellia brittoniana, or dwarf Mexican petunia, is a low growing flowering plant that will grow in most of Southern United States. It is found in pink, white and purple, and is heat and drought tolerant. If you live in a warm climate and want an easy plant to keep going in the ground, this is a beautiful little bloomer. This perennial is hardy in U.S. Department of Agriculture zones 8b to 10b. If you live in a colder climate, this plant grows well in container gardens.

Things You'll Need

  • Fertilizer with high phosphorous content
  • Pruning shears
  • Locate this flowering plant in a warm sunny spot. It can also tolerate partial shade.

  • Dwarf Mexican petunias are drought resistant but regular watering helps the plant thrive. Bees and butterflies are attracted to the flowers.

  • Apply a fertilizer with high phosphorous content regularly.

  • In January or after a hard freeze when the plant leaves become brown, cut the plant close to the ground as it goes into dormancy. The plants come out with deep green leaves in early spring and bloom all summer.

  • Dwarf Mexican petunia self-seeds abundantly, so that sometimes it can become invasive in the garden. If you want, however, you can also propagate it through cuttings.

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