How to Grow Painted Lady
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Painted Lady
Cosmidium burridgeanum
flowerPainted Lady is a charming annual flower native to Mexico and the southwestern United States, known for its vibrant bi-colored blooms with deep red or burgundy centers and golden-yellow outer petals. The flowers appear on slender stems above finely divided, ferny foliage, creating an airy, delicate appearance in the garden. These cheerful blooms attract pollinators and make excellent cut flowers for fresh arrangements.
When should you plant Painted Lady in your zone?
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Example Painted Lady timeline · Pittsburgh, PA (Zone 6b)
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Plant Painted Lady
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Painted Lady blooms
Around Jun 1≈ 45 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Painted Lady dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives as an annual throughout most of the United States; perennial in zones 9-11
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Get my Painted Lady timeline →Growth Stages
Germination
1-2 weeksTiny seedlings emerge with fine cotyledons (seed leaves) visible within 7-14 days.
Keep soil consistently moist but not waterlogged. Provide bright light or grow lights. Avoid transplanting until true leaves appear.
Seedling
2-3 weeksPlants develop finely divided foliage characteristic of the species, with 2-4 sets of true leaves.
Thin seedlings to proper spacing. Reduce watering frequency as plants mature. Begin hardening off seedlings started indoors.
Vegetative Growth
3-4 weeksPlants grow taller and bushier with increasingly feathery, delicate foliage covering the stems.
Water moderately; allow topsoil to dry between waterings. Pinch back growing tips if plants become too tall and leggy. No fertilizer needed if soil is reasonably fertile.
Flowering
8-12 weeks or until frostBuds form at stem tips, opening into distinctive bi-colored flowers with deep red centers and golden-yellow petals.
Deadhead spent blooms regularly to encourage continuous flowering. Water at soil level to avoid wetting flowers. Light feeding with low-nitrogen fertilizer may extend blooming.
Seed Production
3-4 weeks after floweringIf flowers are not deadheaded, they develop seed pods with ornamental, spiky characteristics.
Allow some flowers to mature and dry on the plant if you wish to collect seeds for next season. Collect seed pods when brown and papery.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray foliage with water to dislodge; use insecticidal soap or neem oil if infestation is severe
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Spray with water or use insecticidal soap; encourage beneficial insects like ladybugs
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Improve air circulation; apply sulfur dust or fungicidal spray; avoid overhead watering
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Use yellow sticky traps; spray with neem oil or insecticidal soap
Uses
Edible Flowers
CulinaryPainted Lady petals are edible and add vibrant color to salads, desserts, and garnish plates. Use pesticide-free plants and petals only, removing the bitter center disc. [source]
Cut Flowers & Arrangements
CraftThe striking bi-colored blooms and airy foliage make Painted Lady an excellent choice for fresh flower arrangements, bouquets, and dried flower crafts. Flowers dry well and retain their distinctive colors. [source]
Pollinator Support
WildlifePainted Lady flowers are excellent nectar sources for butterflies, bees, and other pollinators, making them valuable for supporting beneficial insects in gardens. [source]
Garden Color & Ornament
HouseholdThese cheerful flowers brighten flower beds, borders, containers, and cottage gardens from summer through fall, thriving in sunny locations with minimal maintenance. [source]
Traditional Herbal Use
MedicinalIn traditional Mexican herbalism, Cosmidium species have been used in preparations for various health purposes, though scientific research 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
Cut flowers in early morning when stems are turgid and blooms are fully open. Cut stems at a 45-degree angle to increase water absorption. Remove lower foliage from stems. Place immediately in cool water with flower food. Painted Lady flowers last 1-2 weeks in a vase. For seed collection, allow spent flowers to dry on the plant until seed pods turn brown and papery, then harvest and dry further indoors before storing.
Fun Facts
- 🌱 Painted Lady flowers attract a wide variety of beneficial insects, especially bees and butterflies, making them a pollinator garden staple.
- 🌱 The plant is sometimes called 'Bur Marigold' due to its spiky, burr-like seed pods that can cling to clothing and animal fur for seed dispersal.
- 🌱 Painted Lady blooms prolifically with minimal fertilizer; in fact, too much nitrogen can reduce flowering in favor of foliage production.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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