How to Grow Lowrie's Aster
Lowrie's Aster
Symphyotrichum lowrieanum
flowerLowrie's Aster is a native North American wildflower producing delicate purple to lavender daisy-like blooms on tall, slender stems. This autumn-flowering perennial is prized by native plant enthusiasts and pollinators alike. It thrives in open meadows and prairie settings with minimal maintenance once established.
When should you plant Lowrie's Aster in your zone?
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Example Lowrie's Aster timeline · Pittsburgh, PA (Zone 6b)
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Plant Lowrie's Aster
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 Lowrie's Aster blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9, with best performance in zones 6-8
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Seed/Germination
2-3 weeksTiny seeds germinate on soil surface with light exposure. Seeds are very small and appear as dust-like particles.
Do not cover seeds. Keep soil moist but not waterlogged. Germination takes 10-21 days at 65-75°F. Use bottom heat (60-70°F) for improved results.
Seedling
4-6 weeksDelicate first true leaves emerge. Seedlings develop slowly initially and remain small for several weeks.
Maintain consistent moisture without waterlogging. Provide bright light to prevent leggy growth. Thin seedlings to spacing distance or transplant to individual cells.
Vegetative Growth
8-12 weeksPlant develops deeper root system and bushy foliage. Stems elongate and leaves become more substantial.
Water regularly during dry periods. Pinch back growing tips in early summer to encourage bushier growth and more flowering shoots. Drought-tolerant once established.
Budding & Flowering
6-10 weeksTerminal buds form in late summer. Delicate purple to lavender flowers open in waves from late September through November.
Reduce supplemental watering to encourage blooming. Deadhead spent flowers to extend bloom period, though this is optional for this species. Provide staking if needed for tall cultivars.
Seed Production & Dormancy
December-AprilAfter flowering, plants develop seed heads with fine bristles (pappus). Foliage dies back after hard frost.
Leave seed heads standing for winter interest and to feed birds. Cut back to ground level in early spring before new growth emerges, or leave standing until spring.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove affected leaves; use neem oil spray if severe. Improve air circulation to reduce conditions favoring pests.
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Increase humidity and air circulation. Spray with water to dislodge. Use miticide if infestation is severe.
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Improve air circulation. Water at soil level only. Apply sulfur spray or baking soda solution (1 tbsp per gallon) preventatively.
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and
Hand-pick, especially in evening. Use slug barriers or beer traps. Remove debris where they hide.
Uses
Edible flowers
CulinaryAster flowers are edible with a slightly bitter, delicate flavor. Use in salads, as garnish, or crystallized for decorative purposes. [source]
Pollinator support
WildlifeLowrie's Aster is an excellent late-season nectar source for monarch butterflies, bees, and other pollinators during their critical fall migration and foraging period. [source]
Cut flowers and arrangements
HouseholdThe delicate lavender blooms are excellent for fresh flower arrangements and dried flower crafts, providing fall color when many other flowers have faded. [source]
Traditional herbal use
MedicinalAsters have been used in traditional herbalism as a mild remedy for respiratory support and general wellness, though scientific evidence is limited. [source]
Dried flower crafts
CraftDried aster flowers and seed heads are valuable for dried arrangements, wreaths, and other decorative crafts, maintaining their color well when dried properly. [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 for arrangements in the morning when fully open. Leave some flowers for wildlife. Allow seed heads to remain on plants through winter for birds and self-seeding. Seeds can be collected by placing seed heads in paper bag and shaking when fully dry, then storing in cool, dry location.
Fun Facts
- 🌱 Lowrie's Aster was named after botanist William Lowrie, an early 19th-century plant collector in the southeastern United States.
- 🌱 The name 'aster' comes from the Greek word 'aster' meaning 'star,' referring to the star-shaped flower pattern of the blooms.
- 🌱 This species is a critical food source for late-migrating monarch butterflies, providing essential nectar in September-November when few other native plants are flowering.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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