How to Grow Orange King
iNaturalist
Orange King
Calendula officinalis 'Orange King'
flowerOrange King is a vibrant cultivar of pot marigold featuring large, fully double flowers in a rich orange hue. This annual flower is prized for both ornamental beauty and traditional medicinal and culinary uses. It's a hardy, prolific bloomer that attracts pollinators and thrives in various garden conditions.
When should you plant Orange King 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 Orange King timeline · Pittsburgh, PA (Zone 6b)
-
Plant Orange King
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
First Orange King blooms
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Orange King dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-10; best performance in cooler to moderate climates
Sign up free to see if Orange King grows in your zone — and get a personalized planting timeline.
Get my Orange King timeline →Growth Stages
Seedling
10-14 daysTiny seedlings emerge with cotyledons (seed leaves) and develop first true leaves within 7-10 days.
Keep soil consistently moist but not waterlogged. Provide bright light to prevent leggy growth. Thin seedlings to proper spacing once they have 2-3 true leaves.
Vegetative Growth
3-4 weeksPlant develops bushy foliage with multiple stems and dark green, lance-shaped leaves. No flowers yet.
Pinch back growing tips when 4-6 inches tall to encourage branching and bushier growth. Water moderately and ensure good air circulation.
Bud Formation
1-2 weeksFlower buds appear at stem tips; plant becomes more compact and dense as bud sites develop.
Reduce nitrogen fertilizer to encourage flowering over excessive foliage. Ensure consistent watering without waterlogging. Maintain good air circulation.
Flowering
6-10 weeks (extended with deadheading)Large, fully double orange flowers bloom prolifically. Flowers are 2-3 inches in diameter with many petals arranged in dense layers.
Deadhead spent flowers regularly to promote continuous blooming. Water at soil level to keep petals dry and prevent fungal disease. Apply balanced or flower-promoting fertilizer every 2-3 weeks.
Seed Production & Decline
Variable; lasts until frostIf flowers are not deadheaded, they develop seed pods. Plant may slow flowering and show signs of exhaustion as temperatures shift.
Allow a few flowers to mature to seed if desired for self-seeding next year. Otherwise, continue deadheading. In hot summers, provide afternoon shade and mulch to cool roots.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Spray with water to dislodge; use insecticidal soap or neem oil; encourage natural predators like ladybugs
-
Increase humidity; spray foliage with water; apply neem oil or sulfur in dry conditions
-
Use yellow sticky traps; spray with insecticidal soap; ensure good air circulation
-
Improve air circulation; avoid overhead watering; apply sulfur or baking soda spray; remove infected leaves
-
and
Hand-pick; create barriers with copper tape or diatomaceous earth; use slug traps with beer or yeast
Uses
Edible Garnish & Salad Petals
CulinaryOrange King petals are vibrant, slightly peppery, and edible when pesticide-free. Use fresh petals to garnish salads, desserts, and beverages for color and subtle flavor. [source]
Healing Salve & Skin Care
MedicinalCalendula is rich in flavonoids and carotenoids with proven wound-healing, anti-inflammatory, and antibacterial properties. Traditionally made into oils, salves, and creams for minor cuts, skin irritation, and sensitive skin. [source]
Natural Dye
HouseholdOrange King petals yield golden to orange dyes for textiles and natural crafting. Simmer petals with fabric and mordant to create vibrant, lasting color. [source]
Dried Flower Arrangements
CraftThe fully double flowers dry beautifully, retaining color and form for long-lasting bouquets, wreaths, and craft projects. [source]
Pollinator & Beneficial Insect Support
WildlifeOrange King attracts bees, hoverflies, and other beneficial insects that support vegetable gardens and ecosystems. Also used as a trap crop to draw pests away from vegetables. [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 flowers in the morning after dew dries but before heat of day for maximum potency and freshness. Pinch or cut flowers just above a leaf node to encourage more blooms. Use flowers fresh, or dry them by hanging bundles in a warm, well-ventilated area for 1-2 weeks. Collect seeds in late summer by allowing spent flowers to dry on the plant, then remove dried seed pods and store in a cool, dry place.
Fun Facts
- 🌱 Orange King was developed as a cultivar to enhance the size and fullness of traditional pot marigold flowers, making it a favorite for Victorian gardens.
- 🌱 Calendula has been used in European folk medicine for over 1,000 years and is still a key ingredient in modern herbal salves and cosmetics.
- 🌱 The name 'calendula' may derive from the Latin 'calendae,' meaning the first day of each month, because this plant blooms almost continuously throughout the growing season.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Orange King planting timeline
Tell us your zip code and we'll calculate exactly when to start Orange King 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 Orange King timeline →