Grandiflora petunias have large, heavy blossoms sometimes prone to damage and rot during hot, humid summers. The flowers are often frilled or ruffled along the edges.

• Storm Series - weather-tolerant and have high disease tolerance, uniformity and 3-4 inch blooms.

• Ultra Series - compact and low spreading with masses of 3-4 inch ruffled blooms.
  *'Daddy' series petunias have large flowers with distinctive dark veining. They are rain tolerant.
  

Multiflora petunias have flowers that are not as large as the grandiflora types. Multifloras produce masses of color through summer until frost. They are very free-flowering, vigorous and resistant to petal blight. There are single-and double flowered types.

• Carpet Series - compact, early blooming with 1½-2 inch blooms.

• Primetime Series - compact and uniform, covered with 2¼ inch flowers.

• 'Heavenly Lavender' - compact, double, deep lavender blue with 3 inch blooms on 12-14 inch plants.

Floribundas have flowers that are intermediate between the grandiflora and the multiflora groups. They are free-flowering like the multifloras and produce medium-sized blooms.

• Celebrity Series - compact and rain-tolerant. Flowers are 2½-3 inches across.

• Madness Series - Big, 3 inch flowers in many veined and solid colors. They are compact and bloom until frost.

• 'Double Madness' - compact and floriferous with big, 3 inch flowers
  

Miillflora petunias are much smaller than any other petunias. The flowers are only 1-1½ inches wide.

• 'Fantasy' forms neat, compact mounds 10 inches high in the garden. They are excellent for containers and baskets.
  

Spreading or Trailing petunias are low-growing but spread as much as 3-4 feet. They form a colorful groundcover because the flowers form along the entire length of each stem. They can be used in window boxes or hanging baskets.

• 'Purple Wave' - first cultivar in the class of spreading petunias. Large blooms of deep rose-purple. It is tolerant of summer heat, drought and rain damage. Remains under 4 inches tall.

• 'Wave' Series - available in a multitude of colors. Weather-tolerant, disease resistant and heavy blooming.

• Tidal Wave Series - spreading, reaching 2-4 feet in width, but are much taller at 16-22 inches tall. Called hedge petunias because of their height and dense growth.

• Opera Supreme Series - large flowers and bloom prolificly