How to Grow Coral Burst
Wikimedia Commons
Coral Burst
Dahlia × pinnata 'Coral Burst'
flowerCoral Burst is a stunning dahlia cultivar known for its vibrant coral-orange double flowers with ruffled petals that create a full, pompom-like appearance. This tender perennial typically grows 3-4 feet tall and produces abundant blooms from mid-summer through fall frost. It's a favorite for cut flowers and garden displays due to its long vase life and striking color.
When should you plant Coral Burst in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Coral Burst timeline · Pittsburgh, PA (Zone 6b)
-
Plant Coral Burst
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
First Coral Burst blooms
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Coral Burst dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-10; treat as annual in zones 3-7 or dig tubers for winter storage
Sign up free to see if Coral Burst grows in your zone — and get a personalized planting timeline.
Get my Coral Burst timeline →Growth Stages
Tuber/Transplant Establishment
2-3 weeksNewly planted tubers or transplants develop roots and initial shoots. Foliage begins to emerge and plant establishes in garden.
Keep soil consistently moist but not soggy. Provide support stakes early if needed. Avoid fertilizing immediately; focus on root establishment.
Vegetative Growth
3-4 weeksPlant develops multiple stems and leafy foliage. Bushy growth with no flowers yet. Plant reaches 1-2 feet tall.
Pinch back growing tips when plant is 12 inches tall to encourage bushier growth. Install support stakes or cages. Water regularly. Apply balanced fertilizer every 2-3 weeks.
Bud Formation & Early Flowering
2-3 weeksFirst flower buds appear at branch tips. Initial blooms open, displaying coral-orange color. Plant continues growing to mature height.
Remove side buds if large exhibition flowers desired; leave buds for more abundant blooms. Continue watering and fertilizing with lower nitrogen formula (higher phosphorus/potassium). Stake tall stems.
Peak Flowering
6-8 weeksAbundant coral-orange pompom flowers cover the plant. Blooms 4-6 inches across on long stems. Plant reaches full mature height of 3-4 feet.
Deadhead spent flowers regularly to encourage continuous blooming. Water deeply and consistently. Fertilize every 2 weeks with bloom-promoting formula. Check for pests and diseases weekly.
Late Season & Frost Preparation
Until frost or season endFlowering continues but may slow as temperatures drop in fall. Plant remains vigorous until hard frost kills foliage.
In zones 3-7, prepare to dig and store tubers before first frost (around 28-32°F). Cut back stems to 4-6 inches and carefully excavate tubers. Store in cool, dry location for winter.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Hand-pick early morning; use neem oil or insecticidal soap; install pheromone traps away from plants
-
Increase humidity with regular misting; spray with water or insecticidal soap; neem oil treatments
-
Monitor for wilting stems; inject Bt (Bacillus thuringiensis) into stems; remove and destroy affected plant parts
-
Remove flower buds at dusk; use diatomaceous earth around base; trap with rolled newspaper or oil-filled containers
-
Ensure good air circulation; spray with sulfur dust or baking soda solution; remove infected leaves
Uses
Edible Flowers for Garnish
CulinaryDahlia petals are edible and can be used as an elegant garnish for salads, desserts, and cocktails. The petals add a delicate, slightly sweet flavor and vibrant coral color to dishes. [source]
Cut Flowers & Floral Arrangements
CraftCoral Burst dahlias are prized by florists and home arrangers for their full, pompom form, striking color, and exceptional vase life. They're ideal for wedding bouquets, garden arrangements, and decorative displays. [source]
Garden Display & Landscaping
HouseholdThe plant's vibrant coral blooms and bushy growth habit make it excellent for borders, cottage gardens, and container gardening. It creates a focal point and attracts pollinators throughout the growing season. [source]
Pollinator Support
WildlifeDouble dahlia flowers attract bees, butterflies, and other beneficial insects. The abundant pollen-rich blooms provide nectar and pollen resources for pollinators throughout summer and fall. [source]
Traditional Herbal Use
MedicinalIn traditional medicine, dahlia tubers have been used in some cultures for their potential anti-inflammatory and antimicrobial properties, though scientific evidence is limited. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest in early morning when stems are fully hydrated for longest vase life. Cut flowers with at least 12 inches of stem using sharp, clean pruners. Cut above a leaf node. Remove lower leaves below water line. Change water every 2-3 days. Flowers typically last 7-10 days in a vase. Deadheading spent blooms on the plant encourages more flowering.
Fun Facts
- 🌱 Dahlias are native to Mexico and were considered sacred by the Aztecs, who used them for food and ceremonial purposes.
- 🌱 The name 'Coral Burst' perfectly describes the flower's appearance—it looks like a burst of coral-colored fireworks when fully open.
- 🌱 In zones with cold winters, dahlia tubers can be dug up and stored indoors over winter, making them a perennial investment that returns year after year with proper storage.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Coral Burst planting timeline
Tell us your zip code and we'll calculate exactly when to start Coral Burst seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Coral Burst timeline →