Yellow dahlia flowers are one of the most cheerful and vibrant options for gardeners looking to add pops of color. With their bright golden hues ranging from soft buttery tones to bold sunshiny shades, yellow dahlias make a stunning statement in any outdoor space. In this article, we’ll explore some of the most popular bright yellow dahlia varieties to consider for your own garden.
An Overview of Yellow Dahlias
Part of the Asteraceae family along with sunflowers and daisies dahlias come in a rainbow of colors. However bright yellow varieties are among the most popular options. Yellow dahlias come in a variety of flower shapes and sizes, from small pom pom-shaped blooms just 2-4 inches across to giant 10+ inch dinnerplate flowers. Their growth habit also ranges from compact 1-2 foot plants to tall varieties reaching 4-6 feet.
With so many choices, yellow dahlias can fit into any garden design. Use dwarf varieties in containers on patios and in small garden beds. Mid-sized types work well in mixed borders and cutting gardens. Meanwhile, giant yellow dahlias make an unforgettable focal point, especially when grouped together in clusters of 3-5 plants.
No matter which you choose, yellow dahlias are sure to brighten up your outdoor space from midsummer through the first fall frosts with their cheery golden blossoms. Let’s look at some of the best bright yellow dahlia varieties to grow.
Top Bright Yellow Dahlia Varieties
Kelvin Floodlight
One of the most popular giant yellow dinnerplate dahlias, ‘Kelvin Floodlight’ features huge 10 inch golden yellow blooms with slightly pointed petals A bright true yellow, these flowers make a bold statement in garden beds and borders This variety grows 4-5 feet tall.
Yellow Boom Boom
For a petite pop of yellow color, ‘Yellow Boom Boom’ is a great option. This dwarf ball dahlia produces abundant 2-4 inch pom pom-shaped lemon yellow flowers on compact 1-2 foot plants, making it ideal for containers.
Clearview Daniel
‘Clearview Daniel’ is another classic ball dahlia, with gorgeous 4-5 inch spherical blooms in a vivid yellow hue. This mid-sized variety reaches 3 feet tall, working well in mixed borders and cutting gardens. The flowers make beautiful bouquets.
Gallery Cézanne
At just 12-18 inches tall, ‘Gallery Cézanne’ is a dwarf yellow dahlia perfect for containers on patios and in small garden spaces. The abundant 4 inch blooms have a bright golden yellow color. Pinching back the plants when young produces a fuller, bushier habit.
La Luna
For giant golden yellow blooms, ‘La Luna’ is a stunning choice. The 8-10 inch informal flowers feature creamy yellow petals boldly streaked with sunny yellow hues. This taller variety grows 4-5 feet tall, making an eye-catching focal point.
Sassafrass
Unique fringed or laciniated dahlias like ‘Sassafrass’ offer a fun new look for yellow dahlias. The bright golden yellow petals of ‘Sassafrass’ are deeply split, giving the 4-5 inch blooms a fluffy, ruffly appearance. The tall 4 foot plants bloom abundantly late summer into fall.
American Sun
‘American Sun’ features 5-6 inch formal decorative blooms in a vivid golden orange-yellow hue. The color is bolder and warmer than many yellow dahlias. The flowers bloom prolifically on 3 foot tall plants, mixing well in borders with orange and bronze flowers.
October Sky
For bicolor dahlias, ‘October Sky’ offers a beautiful peach and yellow combination. The 5 inch blooms feature yellow centers that gradually blend into soft peach-pink outer petals, creating an ombre effect. The mid-sized plants reach 3 feet tall.
Grand Prix
Giant 10 inch bicolor yellow and white blooms make ‘Grand Prix’ really stand out. The flowers feature bright golden yellow petals tipped with clean white. The huge flowers bloom abundantly on 4-5 foot tall plants from mid to late summer.
Sea Nugget
‘Sea Nugget’ offers unique waterlily-style blooms in a bright golden yellow color. The flowers feature rounded, slightly ruffled petals and bloom abundantly on compact 2-3 foot tall plants. It’s a good option for containers and the middle of borders.
Growing Yellow Dahlias
Yellow dahlias grow best in full sun and fertile, well-drained soil. Provide at least 6 hours of direct sunlight daily. Amend garden beds with compost or rotted manure before planting. Space plants 12-24 inches apart depending on their expected mature size.
Dahlias can be grown from seeds, but most gardeners prefer to start with transplants or tubers. Plant the tubers or transplants outdoors after all danger of frost has passed. Lay the tuber horizontally in the planting hole 4-6 inches deep, then cover with soil. Water thoroughly after planting.
Apply a balanced liquid fertilizer or slow-release granular fertilizer at planting time. Yellow dahlias benefit from occasional fertilizing throughout the growing season to fuel abundant blooms. Mulch around the base of the plants to retain soil moisture and reduce weeds.
Consistent watering is important, providing 1-2 inches per week. Take care not to overwater, as wet soil can cause tubers to rot. Stake taller varieties to provide support once they reach 12-18 inches tall. Pinching out the first few sets of buds encourages bushier growth.
Enjoying Yellow Dahlias
One of the best qualities of yellow dahlias is their long bloom season. You can enjoy the bright golden blooms from midsummer through fall frosts. The flowers make beautiful bouquets and arrangements for indoor display. Simply cut blossoms in the morning once they are fully open.
Yellow dahlias also attract pollinators like bees and butterflies to the garden. Their nectar-rich flowers provide food for pollinators late in the season when many other plants have finished blooming. Planting yellow dahlias brings beauty and supports backyard pollinators at the same time.
With their outstanding diversity, versatility, and brightly colored blooms, it’s easy to see why yellow dahlias are a top choice of flower gardeners. Their vibrant golden hues and long bloom season brighten up the garden beautifully. Try adding some of these bright yellow beauties to your own outdoor space this year!
Details Form: collarette Bloom size: 4 to 6 in Site: full sun Days to maturity: 80 to 100 days Plant spacing: 12 to 18 in Pinch: when 12 in tall
Large, bright yellow petals encircle a rich golden center that’s framed by a creamy yellow collar of ruffled inner petals. If you love yellow, you’ll love this fun novelty.
Yellow Dahlia Flowers
FAQ
What is the rarest color of dahlias?
Of the 20,000 varieties of dahlia flowers, only 10 to 20 kinds are black in color. Now researchers say they’ve solved the molecular mystery of how these rare flowers get their dark hues.
Are yellow dahlias a perennial or annual?
Dahlias are warm-season plants, meaning they grow and flower during the late spring, summer and early fall months; and are herbaceous perennials, meaning they die back to the ground in the fall and put on new growth in spring.
Do dahlias return year after year?
Do Dahlias Come Back Every Year? Dahlias can return yearly, but only with your help if you live in a colder climate. Dahlia flowers are very sensitive to frost and not winter-hardy in freezing conditions. The flowers, foliage, and stems will turn quickly into a brown, slimy pile of mush.
What is the name of the yellow dahlia?
Dahlia ‘Mystic Illusion’ is a captivating new variety known for its bright sunshine-yellow flowers set against dark purple-bronze foliage. The flowers bloom throughout the summer and into autumn, attracting bees and other beneficial insects.
Which Dahlia flowers are yellow?
Dahlia ‘Jowey Martina’ is a yellow ball-type dahlia. These geometric flowers of this plant have a tight spiral of rounded sunny-yellow petals. Each flower is about 4″ wide, and they make wonderful cut flowers. 11. Lake Ontario dahlia Dahlia ‘Lake Ontario’ is a popular variety known for its bright yellow petals with a unique thin red edge.
What does a yellow star Dahlia look like?
Dahlia ‘Yellow Star’ is a magnificent and eye-catching dahlia with rich buttery yellow blossoms, slightly fading towards the tips of their elongated petals. When the light hits the blooms, they shimmer, and it is bedazzling to behold. The flowers are quite spectacular, about 6 in. across (15 cm), and add a touch of sunshine to the garden.
What is a royal yellow Dahlia?
Royal Yellow is a midsize decorative dahlia that produces an abundance of rich yellow blooms. The rounded 6 inch flowers have a slight pink blush at their center that adds depth. Compact plants reach 3 feet tall, ideal for the middle of borders. With their sunny colors and diversity, yellow dahlias are always crowd-pleasers.
What is a yellow ball Dahlia?
Yellow Boom Boom is a profuse blooming ball dahlia thatpumpes out small round flowers all season. The 2 to 3 inch double blooms are a soft lemon shade. The compact mounded plants reach 2 to 3 feet tall, ideal for borders. 6. Clearview Daniel Clearview Daniel is a classic yellow ball dahlia with perfect form.
How big does a dahlia grow?
Dahlia ‘Lake Ontario’ is a popular variety known for its bright yellow petals with a unique thin red edge. The tips of the yellow petals are sometimes also streaked with red, depending on the growing conditions. The sunset-colored flowers of this decorative cultivar are typically 4″-6″ wide. The plants grow 3′-4′ tall in the garden. 12.
What is a yellow hammer Dahlia?
Dahlia ‘Oakwood Goldcrest’ is a tall, semi- cactus dahlia, with large, lemon yellow flowers. It’s ideal for growing in a mixed herbaceous border, where its flowers will bring out the colours of other blooms. It’s also excellent for cutting. Height x spread: 110cm x 30cm Dahlia ‘Yellow Hammer’ is a Dwarf Bedder single dahlia.