Types Of Double Bloom Flowers

“Double-flowered” refers to the flower species with extra petals, often containing a flower within a flower. Because of how difficult they are to cultivate and find, double blossoms have been prized and cherished since ancient times.

If you look closely, you will probably be able to identify a double blossom, but you might be curious as to how they originate. This article will provide you with all the information available on these unusual, intriguing, and divisive flowers.

What are Double Bloom Flowers?

Double-bloom flowers have a rich history that dates back more than 2000 years. Ancient civilizations viewed them as a novelty and a symbol of prosperity. 

These strange flowers have more petals than a single flower does. For example, a double rose can have 17 to 25 petals. There are also semi-double flowers, with several petals between simple and double. 

Growing double flowers requires extra care and attention compared to growing single flowers. They need a lot of sunshine, well-draining soil, frequent fertilizing, and watering.

What Causes Double Bloom Flowers?

The cause of these flowers’ breeding problems and their explanation was a mystery for thousands of years. But now, modern genetic research has made it easier for us to understand why some flowers have multi-petals.

According to research, a faulty gene expression in the flower’s genes results in double flowers. The stamens, carpels, and sepals, all essential parts of the flower’s sex organs, are formed by proteins encoded by genes.

If the genes that regulate these break, they can’t produce the protein necessary to develop sexual organs. The male and female organ layers present in most flowers are absent, and they instead generate asexual petals.

Because they lack pollen, double-flowered plants typically stay open longer than single flowers. It’s like they’re waiting for pollinators that won’t show up.

The showiness of the double petals, plus the longer flowering time, has made these mutants very desirable. Nonetheless, many environmentalists are against them since they don’t feed local bees and pollinators. 

Types of Double Bloom Flowers

Double blooms can be an exciting addition to your garden or greenhouse. If you are considering acquiring this flowering plant for your home, here is a list of the most popular species.

Roses

Roses (Rosa rubiginosa) are the most popular form of double-flowers. They have a beautiful and lush appearance and come in many colors, including pink, red, white, and yellow.

Growing double roses requires careful attention to soil, light, water, and fertilizer. They enjoy full sun or light shade and do best in rich, well-drained soil with a pH of 6.0 to 6.5. Depending on the weather and the soil’s moisture content, they should receive deep watering once or twice a week.

Double roses can grow in various USDA hardiness zones, depending on the variety. However, most double roses prefer to grow in zones 5 to 9, characterized by mild to moderate winters with minimum temperatures.

Double roses are susceptible to pests and diseases, including aphids, spider mites, blackspots, and powdery mildew, much like all other varieties of roses. Therefore, you should check on them regularly.

Peonies

The additional petals of double peonies give them a full, fluffy, and luxuriant look similar to a pom pom. One of the most widespread varieties is Paeonia lactiflora, which produces several cultivars such as ‘Bowl of cream’ and ‘Kansas.’

Double peonies typically bloom in the late spring or early summer, depending on the growing conditions. They usually bloom relatively quickly, typically lasting just a few weeks each year.

They mostly need well-draining soil with a pH between 6.0 and 7.0 and at least 6 hours of direct sunlight.

Dahlias

Double dahlias, also known as ‘Dahlia Double Pompone,” have a gorgeous ball form that resembles a multicolored pom pom. One of the most widespread cultivars is Dahlia variabilis, which can grow large, up to a 12-inch diameter. 

These flowers should receive at least 6 hours of direct sunlight per day. They also need regular watering. Avoid overwatering them, which can cause root rot. They grow best in hardiness zones 8 to 11.

Some pests that can attack double dahlias include slugs, snails, and thrips. These pests can cause damage to the flowers and even spread diseases. Regular monitoring and appropriate control measures, such as insecticidal soaps, can help prevent this.

Chrysanthemums

Double chrysanthemums (Morifolium) have densely packed spherical blooms. They bloom in the fall and are relatively easy to grow and maintain, and they grow best in hardiness zones 5 to 9.

These stunning flowers thrive in areas with cool temperatures and moderate humidity, as they can suffer in hot and dry conditions. They also benefit from pinching off the top of the plant when it reaches 6 inches tall to encourage bushier growth and more blooms. 

Common pests that affect chrysanthemums include aphids, spider mites, and leafhoppers. Monitor your flowers for signs of infestation and treat them with insecticidal soap or neem oil as needed.

Begonias 

Double begonias (Begonias Tuberhybrida) are relatively easy to care for and can be grown indoors and outdoors, depending on the climate. They grow best in partial shade or filtered sunlight and should be consistently moist, as they are susceptible to drying.

Generally, double begonias are well-suited to hardiness zones 9 to 11, characterized by mild to warm winters with minimum temperatures.

These small and lovely flowers do best when fertilized regularly. Some common pests that may attack them include mealybugs, thrips, and aphids. These pests can cause damage to the leaves and flowers of the plant.

Carnations

Double carnations (Dianthus caryophyllus), known as “clove pinks,” are popular flowers with intricate, layered blooms. Carnations are known to thrive in USDA hardiness zones 6 to 9.

Double carnations prefer well-draining soil and full sun to partial shade. They require regular watering, especially during dry periods. Deadheading spent blooms can help promote continued blooming.

Depending on the specific variety and growing conditions, these flowers typically bloom in late spring to early summer. And, with proper care, they can continue to bloom intermittently throughout the summer and into the fall.

Daisies

Double daisies (Bellis perennial) are a type of daisies that produce large, showy flowers with double or semi-double petals. These flowers are typically white or pink and bloom in the late spring or early summer.

Growing double daisies is relatively easy and can thrive in many growing conditions. They prefer full sun and well-draining soil that is kept moist but never waterlogged. Most double daisies prefer to grow in hardiness zones 4 to 8.

Even though they are relatively low-maintenance, they can be susceptible to a few common pests and diseases. Aphids, spider mites, and thrips can infest these plants.

An uncommon but stunning type of flower

Growing double flowers can be a rewarding experience, but it requires a little extra care and attention compared to growing single flowers. However, with suitable soil, sunlight, water, and nutrients, you can enjoy a stunning display of blooms in your garden.

Whether you’re a seasoned flower enthusiast or just starting to explore the gardening world, double flowers are an excellent addition to any collection. Their lush and full blooms impress and delight, bringing color and beauty to any space they occupy.

Check gardening magazines, nurseries, or your neighborhood supply store, if you’re looking for double-bloom flowers. 

The photo featured at the top of this post is © Nnattalli/Shutterstock.com