How to Grow Frikart's Aster
Frikart's Aster
Aster × frikartii
flowerFrikart's Aster is a hybrid perennial that produces masses of daisy-like lavender-blue flowers with yellow centers from summer through fall. This vigorous, disease-resistant cultivar is prized for its long blooming season and ability to attract pollinators, making it a reliable choice for borders and cutting gardens.
Looking for a specific variety?
When should you plant Frikart's Aster 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 Frikart's Aster timeline · Pittsburgh, PA (Zone 6b)
-
Plant Frikart's Aster
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
First Frikart's Aster blooms
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Frikart's Aster dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9; performs best in cooler climates with moderate summer heat
Sign up free to see if Frikart's Aster grows in your zone — and get a personalized planting timeline.
Get my Frikart's Aster timeline →Growth Stages
Establishment
4-6 weeksYoung plants develop strong root systems and begin upright growth; foliage is green and compact
Water consistently to establish roots. Avoid heavy nitrogen fertilizer. Mulch around base (not touching stems) to retain moisture and regulate soil temperature.
Vegetative Growth
6-8 weeksPlants reach 2-3 feet tall and develop bushy, branching structure with lance-shaped green foliage
Pinch back stems in early summer (before July) to promote bushier growth and more flowers. Remove lower foliage if air circulation is poor to prevent mildew.
Bud Formation
2-3 weeksNumerous flower buds appear at branch tips; buds are tight and greenish-purple
Reduce nitrogen fertilizer. Maintain consistent moisture. Stake tall varieties if needed in windy locations. Deadhead spent flowers weekly to encourage continuous blooming.
Flowering
8-12 weeks (mid-summer through first frost)Abundant lavender-blue daisy-like flowers with prominent yellow centers open in succession; plant is full and showy
Deadhead regularly to extend bloom season into fall. Water at soil level to keep foliage dry. Provide support if stems become too heavy with flowers.
Seed Development & Dormancy
4-6 weeks until dormancyFlowers fade and develop seed heads; foliage dies back with first hard frost; plant becomes dormant
Leave seed heads for wildlife and winter interest if desired, or cut back before frost. Cut plants to ground level in late fall or early spring. Apply light mulch in cold zones for winter protection.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Improve air circulation by removing lower foliage and spacing plants adequately. Water at soil level only. Apply sulfur-based fungicides if needed. Grow disease-resistant cultivars like 'Monch'.
-
Spray with strong water stream to dislodge. Use insecticidal soap or neem oil for heavy infestations. Encourage natural predators like ladybugs and lacewings.
-
Increase humidity and air circulation. Spray with water to dislodge. Use miticide or neem oil if infestation persists. Avoid excessive heat and drought stress.
-
No cure once infected; remove and destroy affected plants. Control leafhoppers with insecticidal soap. Plant resistant varieties and maintain plant vigor.
-
and
(Gastropoda)
Remove by hand, especially at dusk. Use beer traps or copper barriers. Reduce mulch thickness near stems. Encourage ground beetles and other predators.
Uses
Edible Flower Garnish
CulinaryFrikart's Aster flowers are non-toxic and can be used as colorful edible garnishes for salads, desserts, and beverages, adding both visual appeal and a mild, slightly grassy flavor. [source]
Cut Flowers & Arrangements
HouseholdExcellent long-lasting cut flower for late-summer and fall bouquets, floral arrangements, and dried flower crafts. The extended bloom season ensures fresh flowers for weeks. [source]
Traditional Herbal Uses
MedicinalAsters have been used in traditional herbal medicine to support respiratory health and reduce inflammation, though modern scientific evidence is limited. Consult healthcare providers before medicinal use. [source]
Pollinator Support
WildlifeFrikart's Aster is a magnet for bees, butterflies, and other beneficial insects, providing essential nectar and pollen during late summer and fall when other nectar sources decline. Vital for monarch butterfly migration. [source]
Dried Flowers
CraftFlowers dry well when hung upside-down in a warm, dry location with good air circulation. Dried blooms retain color for months and are excellent for winter arrangements, wreaths, and craft projects. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
For cutting arrangements, harvest in early morning when stems are hydrated. Cut when 50% of flowers in a stem are open for longest vase life (7-10 days). Remove lower foliage below waterline. Deadhead spent flowers regularly on plants to extend garden blooming season through fall. Leave some flowers on the plant for pollinators and wildlife.
Fun Facts
- 🌱 Frikart's Aster is a hybrid between Aster amellus and Aster thomsonii, developed by Swiss gardener Carl Frikart in 1920, and the cultivar 'Monch' (introduced in 1937) is one of the most disease-resistant and award-winning aster varieties.
- 🌱 This aster blooms reliably through fall in most climates, often flowering until the first hard frost, making it one of the latest-blooming perennials in the garden and crucial for late-season pollinators preparing for winter.
- 🌱 Unlike many asters, Frikart's Aster is less susceptible to powdery mildew and aster yellows, common problems plaguing other aster species, making it a more reliable choice for gardeners in humid climates.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Frikart's Aster planting timeline
Tell us your zip code and we'll calculate exactly when to start Frikart's Aster 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 Frikart's Aster timeline →