Petunia

Petunia exserta by Scott Zona - 004 (1)

Petunia Flowers (2)

Petunia Violet

Petunia axillaris-Purple Petunia

Petunia axillaris-White Petunia

Petunia red

Petunia is a genus of flowering plants in the Solanaceae family, which is known for its colorful and vibrant flowers. Petunias are highly valued for their long flowering period and are a popular choice for gardeners and landscapers looking to add a splash of color to their outdoor spaces. Originating from South America, petunias have been extensively hybridized, resulting in a wide range of varieties with different flower colors, sizes, and growth habits.

Description

Petunias feature funnel-shaped flowers that come in an array of colors including pink, purple, red, white, and yellow, as well as many bicolor patterns. They are annual plants in most climates, meaning they complete their life cycle in one growing season, but can be perennial in warmer climates where frost is not a concern. The leaves of petunias are typically hairy and somewhat sticky, with a green to dark green color.

Classification

The genus Petunia is divided into a number of species and hybrids, with the most common garden petunias classified into two main groups: Grandiflora and Multiflora. Grandiflora petunias have larger flowers but are more susceptible to damage from rain and adverse weather conditions. Multiflora petunias, on the other hand, have smaller, more numerous flowers and are generally more robust.

Cultivation

Petunias require a position in full sun to flourish and prefer well-drained, fertile soil. They are widely used in garden beds, borders, containers, and hanging baskets. Regular deadheading of spent flowers can encourage further blooming. Petunias are also known for their ability to attract pollinators such as bees and butterflies to the garden.

Varieties

There are numerous varieties of petunias, including single and double-flowered types, as well as those with ruffled or smooth petals. Some popular varieties include:

• Wave series, known for their spreading habit and suitability for ground cover
• Supertunia varieties, which are vigorous growers and produce a large number of flowers
• Surfinia petunias, highly regarded for their trailing growth and abundance of blooms

Problems

While petunias are relatively easy to grow, they can encounter issues such as pest infestations, including aphids and slugs, and diseases like root rot and powdery mildew. Proper care, including adequate spacing for air circulation and avoiding overhead watering, can help minimize these problems.

In Culture

Petunias have been a staple in garden design for decades and are often associated with cheerfulness and a carefree spirit. Their wide range of colors and the ease with which they can be incorporated into various garden settings make them a versatile choice for many gardeners.