Plant the tubers in spring after all danger of frost has passed. Warm soil encourages rapid establishment and abundant flowering.
Sale
Sold out
Tuber
Asteraceae
Floral arrangement 'Radiant Messengers' (3 plants)
Dahlia pinnata ‘Radiant Messengers’
Radiant Messengers Giant Dahlia Mix features giant decorative dahlias with blooms reaching up to 25 cm (10 in) across in shades of white, orange, and red. This collection delivers an unforgettable summer display.
Quantity
3 tubers
Exposure
Full sun
Hardiness
Zone 10
Difficulty level
Easy
Discover the plant
Family
Asteraceae
Type
Tuber
Cycle
Perennial
Radiant Messengers Giant Dahlia Mix (Dahlia pinnata ‘Radiant Messengers’) brings together magnificent giant decorative dahlias with flowers reaching up to 25 cm (10 in) in diameter. Their luminous shades of white, orange, and red create a fiery display from midsummer until the first frost. Carried on vigorous stems above green foliage, these impressive blooms quickly become a focal point in the garden. The plants reach approximately 90 cm (36 in) tall and 50 cm (20 in) wide. Hardy only to Zone 10, they must be overwintered in a frost-free location in Quebec.
Plant the tubers in spring after all danger of frost has passed and the soil has thoroughly warmed, 10 to 15 cm (4 to 6 in) deep. Choose a location in full sun with rich, fertile, organic, neutral to slightly acidic, and well-drained soil. Space plants approximately 50 cm (20 in) apart, then water regularly to keep the soil evenly moist without becoming waterlogged. Apply a balanced fertilizer every two weeks to support abundant flowering. Install sturdy stakes to support the large blooms and remove spent flowers regularly to encourage continuous flowering.
The ‘Radiant Messengers’ mix is ideal for creating vibrant flower beds, flowering borders, large containers, and spectacular cutting gardens. For container growing, choose a pot at least 50 cm (20 in) in diameter with excellent drainage. Pair these dahlias with cosmos, salvias, verbenas, zinnias, or ornamental grasses to create dynamic, colourful displays. Their flowers attract pollinators and have excellent vase life, making them ideal for impressive bouquets. Before the first frost, lift the tubers and store them in a cool, dry, frost-free location until the following spring.
Planting guide
From planting to establishment.
Planting depth
10 to 15 cm (4 to 6 in)
Establishment temperature
18 to 24°C (65 to 75°F)
Establishment time
7 to 21 days
Best planting time
Spring
Propagation
Divide the tubers in spring, ensuring each division has at least one healthy eye.
Growing method
Plant the tubers in spring after all danger of frost has passed, approximately 10 to 15 cm (4 to 6 in) deep in rich, fertile, well-drained soil. Space plants 50 cm (20 in) apart and choose a location in full sun. Water lightly after planting, then increase watering as growth accelerates. Install sturdy stakes to support the massive blooms. Lift the tubers before the first frost and store them dry over winter.
Soil and care
The right conditions.
Exposure
Full sun
Soil pH
Neutral to slightly acidic
Hardiness zone
Zone 10
Minimum temperature
5°C (41°F)
Watering
Water regularly to keep the soil evenly moist without becoming waterlogged. Reduce watering toward the end of the season.
Soil type
Rich, fertile, organic soil with excellent drainage.
Fertilization
Apply a balanced fertilizer every two weeks during the growing season. Avoid excessive nitrogen, which encourages foliage growth at the expense of flowers.
Seasonal care
Remove spent flowers regularly to extend the blooming season. Keep the soil lightly moist throughout active growth. Fertilize every two weeks. Lift the tubers before the first frost and store them in a cool, dry place.
Container growing
A controlled environment.
Recommended pot size
50 cm (20 in)
Container growing is ideal in a very large pot at least 50 cm (20 in) in diameter with excellent drainage. Use a rich, fertile potting mix that remains productive throughout the growing season. Place the container in full sun and water regularly to keep the soil slightly moist without becoming waterlogged. Fertilize every two weeks to support abundant flowering. Lift the tubers before the first frost and store them in a cool, dry, frost-free location until the following spring.
Bloom and dimensions
The complete profile.
Flower color
Multicoloured
Foliage color
Green
Foliage type
Deciduous
Growth rate
Fast
Bloom period
Massive decorative flowers bloom continuously from midsummer until the first frost.
Fruiting
None
Harvest
None
Garden associations
What to plant with it.
Good companions
Cosmos, salvias, ornamental grasses, verbenas, and zinnias make excellent companion plants.
Avoid planting with
Young shoots may be damaged by slugs, while aphids, earwigs, and powdery mildew may occasionally affect the plants.
Ideal for flower beds, borders, large containers, and cut flower gardens.
From the garden to inspiration.
The flowers are grown primarily for their exceptional ornamental value and excellent vase life. This blend of giant dahlias in shades of white, orange, and red creates spectacular bouquets. The enormous blooms remain attractive for several days after cutting.
Frequently asked questions
Everything toknow.
Yes. They thrive in very large, rich, well-drained containers. Growing them in pots also makes overwintering the tubers much easier.
The enormous blooms can become quite heavy. Strong staking protects the stems from wind damage and keeps the flowers upright.
Yes. This collection is not hardy in cold climates. Lift the tubers before frost and store them in a dry, frost-free location throughout winter.
Yes. Their giant flowers have outstanding vase life and create truly impressive bouquets.
Its strengths, naturally.
Plants that attract butterflies
Butterflies
