Dahlia Varieties and Growth Conditions

Dahlia is a tuberous perennial plant that belongs to the same family as sunflower, daisy, chrysanthemum, and zinnia. Dahlia flowers are beautiful and they signify love, health, and happiness. Dahlias are very floriferous, meaning they produce many blooms on each stem. Dahlia flowers are grown for their vivid petals and buds that come in various sizes and colors except in blue.

Most people prefer to plant them in the front of gardens because they are pretty tall, but you can also plant them at the back and use them as a border. They can grow to a height of 6 to 8ft.

Image Source Pixabay

Varieties of Dahlia Flowers

Dahlias come in many hues, shapes, and sizes. They are also easy to grow indoors or out. Your plants will bloom in early summer or fall, depending on the variety you choose. If you plan to have dahlias in your garden, you should consider planting them under fruit trees to help the plants produce flowers longer into the season.

Ball Dahlia

Ball Dahlia comes in purple with white dashes creating marble sculptures making it a vibrant flower.  Ball dahlias have flower arrangements of a spiral in nature with curved petals. The flower arrangement forms a ball or a slight sphere that is flat. Some ball dahlia varieties are Dahlia ‘Aurora’s Kiss’, Dahlia ‘Jomanda’ and Dahlia ‘Cornell.’ Ball dahlia is a hardy flower that blooms from July to fall under full sun. Ball Dahlia loves loamy, clay, or sandy soil that is well-drained with neutral pH.


Pompon Dahlia

The petals of pompon dahlias are curved inwards, forming a perfect sphere. The flowers are abundant but are smaller compared to ball dahlia flowers. They produce bright magenta pink blooms, but the color varies from off-white pink to the blossom, which becomes richer and richer. They can be grown for borders or in flower beds. Pompon Dahlia does well under total sun exposure though it can tolerate light shade in hot places. They bloom from July up to the first frost. For abundant blooms, pompon dahlia requires loam soil, clay, or sandy soil that is well-drained and rich with a pH of 6.6 to 7.

Image Source Pixabay

Night Butterfly Dahlia

The flowers of this group somewhat resemble the singles, but there is an additional ring of small petals (the collar), which are about half the length of outer petals. Its large petals surround a ring of small petals whose color is different hence forming a collar-like feature in the middle of the bloom. They require well-drained loam, clay, or sandy soil with pH from slightly acidic to slightly alkaline. They bloom from mid-summer to the end of fall under full sunlight.

Image Source Pixabay

Peony Dahlia

Peony dahlias have single-flowering blooms with two or more rows of large petals surrounding a disc with open centers. The petals have a fluffy look from their irregularly formed petals. The common types of peony are dahlia ‘Fascination,’ dahlia ‘Bishop of Llandaff, ’ and dahlia ‘Bishop of Oxford.’ Peony dahlia has refined rare hues of peach to coral orange. They are exquisite, mainly due to their contrasting foliage and stems.

Peony dahlia blossom under full sunlight and you can grow them in the bed or at the borders. They love humid and well-drained clay, sandy or loam soil with a pH of 6.6 to 7.0. Their blooming season is from mid-summer continuously to the end of fall.

Image Source Pixabay

Semi Cactus Dahlia

Semi-cactus dahlias have double and fluffy-looking flowers. The petals are a broader base compared to the cactus dahlias. Semi cactus dahlia is one of the vibrant flowers with lively yellow hues at the center, which turns to bright flaming red towards the tip of the petals. Semi cactus dahlia does well under slightly acidic and alkaline loam, clay, or sandy soil that is rich and well-drained. They flourish under full sunlight and start blooming from mid-July to the first frost.

Image Source Pixabay

Growing Conditions for Dahlia Flowers

Dahlias are a hardy, easy-to-grow flower that is perfect for containers. To grow your flowers the best, make sure to plant them in a well-drained potting mix with lots of organic matter. Dahlias require full sun and protection from the wind, but they do not need water too often.

Pests and Diseases

The most common pests that affect dahlia are slugs expected during the early stages of development, but once the plant matures, the slug is no longer a problem. Powdery mildew occurs in the fall. Earwigs, cucumber beetle and caterpillars though they eat the petals they don’t pose a threat to the plant. Dahlias are also prone to mites and aphids. It is advisable to keep your plant well-spaced for free circulation of air.


Dahlia flowers are low-maintenance plants that can transform your garden into a small paradise combined with other types of plants. The next time you pay pass by your favorite plant store, don’t forget to get either dahlia tubers or seedlings for your garden.

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