Black Dahlia Flowers [Types, Care Tips and Pictures]

The Black Dahlia stands out in any garden with its deep, velvety petals that seem to capture the essence of twilight.

It's not just a visual treat—growing and caring for this flower offers a rewarding experience for gardeners.

In this article, we'll explore the different types of Black Dahlia flowers and give you practical tips to help them flourish in your garden.

Black Dahlias Overview

Black Dahlias have an almost haunting beauty that makes them a favorite of gardeners and flower aficionados around the world.

The Black Dahlia is a captivating variation of the Dahlia, a perennial plant native to Mexico.

Known for its deep, almost black petals, this flower is a showstopper in any garden.

Though "black" in its name, the hues can range from dark purples to near true black, giving gardens a dramatic and contrasting touch.

Apart from its aesthetic appeal, the Black Dahlia holds a strong presence in cultural and gardening circles, often symbolizing elegance, mystery, and change.

Easy to grow in a range of climates and conditions, the Black Dahlia is both a favorite among seasoned gardeners and an enticing challenge for beginners.

Just like any flower plant, they will thrive under ideal conditions, but their requirements vary depending on the variety.

for instance, some Black Dahlias need more water than others. It's also crucial that you have the right type of soil to ensure a healthy plant.

Here are some Black Dahlia varieties you can explore:

Black Jack Dahlias

Black Jack Dahlias have a striking appearance due to the size of the flowers and its curving, pointed petals.

black dark red decorative double blooming lily-Dahlia

A semi-cactus, the Black Jack does best in sandy loam, yet, they can succeed in most garden beds provided they are well-drained and the soil is slightly acidic.

You'll also need to make sure they get lots of sunlight. Even if you live in colder zones, the tubers should survive in the ground over the winter.

Get your Black Jack Dahlia bare root tubers on Amazon.

Black Wizard Dahlias

Another semi-cactus variety, the Black Wizard Dahlia doesn't need much care yet can deliver magnificent results.

Dark reds and purples characterize the flower, with the inner petals transitioning to black as the dahlia matures.

Plant this one in the summer and you can enjoy its hypnotic beauty throughout the fall.

You'll need to add plenty of compost to the soil and keep the plant well watered.

Check out this Black Wizard large flowering Dahlia tuber root on Amazon.

Fidalgo Blacky

The Fidalgo Blacky is an aptly named Dahlia that appears to be almost totally black.

Yet, a closer look reveals that the bloom is actually a dark red that is truly arresting.

This is an ideal cutting flower that can be grown as an annual. Plant in mildly acidic to neutral soil.

And don't overdo the watering. You won't have any trouble seeing the Fidalgo Blacky in garden or border, as it grows up to four feet tall.

Lights Out Dahlias

Another gorgeous reddish-black variety with broad, velvety petals is the Lights Out Dahlia.

If you live in a rural area these can be a good choice as they are deer resistant.

Deer avoid them is because parts of the Lights Out Dahlia plant are poisonous.

Full sunlight and average watering are the rules to remember. Despite the name, make sure the plant gets full sun. You can get more information.

Tamburo Dahlias

Tamburo is one of the more unusual looking varieties on the list. The wine red petals have a misleading spiky appearance but are soft to the touch.

It doesn't grow tall so plan on putting it front and center in your border.

Be aware that this semi-cactus Dahlia requires frequent watering and abundant sunlight. They offer a long bloom life and are excellent for cutting.

Burgundy Black Dahlias

This is another example of a Dahlia that appears to be pitch black at first look but yields pleasing colors upon closer examination.

The flowers are round with dark burgundy petals complemented by hints of chocolate.

The Burgundy Black variety is perfect for unconventional bouquets or serves as a nice contrast in an arrangement.

Get your Burgundy Black Dahlia seeds on Amazon.

Opera Violet Dahlias

Looking for a more colorful Black Dahlia? Opera Violet is less moody looking than other plants in its family and violet isn't your only color option.

Considered a dwarf (it only reaches about 14 inches in height), the blooms are devoid of the darker hues that characterize other varieties.

Rich, well-drained soil is preferable. Give it full sunlight and watch it thrive.

Check out this Opera Violet Dahlia 400 seeds on Amazon.

Karma Choc Dahlias

Karma Choc has a nearly black center that lightens to a dark red.

The unusual name comes not from its color but the subtle fragrance of the plant which chocolate lovers will find intoxicating.

Unlike some Dahlias, this is one shines late in the season. Karma Choc requires rich soil, partial sun, and moderate water.

This is one of the best Dahlias for cutting.

Get this rare Karma Choc 100 seeds on Amazon.

Hollyhill Black Beauty Dahlias

Lovely blooms and strong stems are the salient features of the Hollyhill Black Beauty.

The red-black blooms are even more enthralling due to the upturned petals. It is a prolific plant that can produce many flowers.

This one is a favorite at shows and can make a dramatic addition to your flower bed.

Wherever you choose to plant your Hollyhill Black Beauty, you need to make sure it gets full sun.

Get your Hollyhill Black Beauty seeds on Amazon.

Arabian Night Dahlias

Speaking of award-winners, the Arabian Night has garnered more than its share of accolades at flower shows.

These attractive "double Dahlias" grow quite tall and produce blooms of black and red. Keep the soil wet and give it full sun to ensure success.

View this Arabian Night Dahlia bare root tuber on Amazon.

Sam Hopkins Dahlias

Birds, bees and butterflies are drawn to the Sam Hopkins Dahlia.

Gardeners are pretty taken with them, too. Classified as a waterlily, it features velvety, dark maroon flowers that resemble the Karma Choc.

The flowers are small, averaging four to six inches in diameter. Sun or even partial shade will suffice. Fertile soil is a necessity.

Check out this Sam Hopkins Dahlia bare root tuber on Amazon.

Caring for Black Dahlia Flowers

Growing vibrant Black Dahlia flowers is straightforward when you pay attention to their needs.

Location

Start by selecting a location that receives full sun, ensuring they get 6 to 8 hours of direct sunlight each day. In hotter climates, a spot that offers afternoon shade is ideal.

Soil Quality

Soil quality is crucial: Black Dahlias flourish in well-draining soil. If your garden has heavy or clayey soil, it's beneficial to amend it with compost or peat moss to reach the desired pH level of 6.0 to 7.5.

Watering Requirements

When it comes to watering, a deep soak once or twice a week suffices. Aim for moist but not waterlogged soil, as overwatering poses a risk of root rot.

Fertilizers

Throughout their growing season, feed your Black Dahlias with a balanced liquid fertilizer every 3 to 4 weeks. However, steer clear of high-nitrogen fertilizers as they can deter flowering.

Support

Given their stature and significant blooms, it's wise to provide Black Dahlias with support. Introducing stakes early in the growing season helps avoid any damage to the tubers later on.

Maintenance

Regular maintenance includes pruning and deadheading. Removing spent flowers not only gives the plant a tidy appearance but also encourages more blossoms.

Pest Prevention

Vigilance against pests and diseases is crucial. Routinely inspect for aphids, snails, and other nuisances, treating any infestations with insecticidal soap or neem oil. Good air circulation is essential to deter fungal diseases.