How to Grow Monte Casino Aster
Monte Casino Aster
Symphyotrichum novi-belgii 'Monte Casino'
flowerMonte Casino is a cultivar of New York aster, prized for its profuse tiny lavender-blue flowers that bloom on sturdy, branching stems. This florist's favorite produces abundant sprays of small daisy-like blooms ideal for cutting and arrangements. It typically grows 24-36 inches tall and flowers prolifically in fall.
When should you plant Monte Casino 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 Monte Casino Aster timeline · Pittsburgh, PA (Zone 6b)
-
Plant Monte Casino Aster
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
First Monte Casino Aster blooms
Around Jul 16≈ 90 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Monte Casino Aster dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-8; hardy perennial that tolerates cold winters
Sign up free to see if Monte Casino Aster grows in your zone — and get a personalized planting timeline.
Get my Monte Casino Aster timeline →Growth Stages
Seedling
3-4 weeksTiny seedlings with first true leaves appearing 7-10 days after germination. Very delicate and small.
Maintain consistent moisture without waterlogging. Provide bright light. Thin seedlings when 2 inches tall to prevent crowding.
Vegetative Growth
6-8 weeksPlants develop bushy foliage with multiple stems and green lance-shaped leaves. Rapid height and width increase occurs.
Pinch back stem tips every 3-4 weeks until mid-summer to encourage branching and bushier shape. Water regularly. Apply balanced fertilizer every 2-3 weeks.
Bud Formation
3-4 weeksTerminal buds form at branch tips and throughout the plant. Buds appear as tiny green knots that gradually enlarge.
Continue light pinching only if needed for shape. Reduce nitrogen fertilizer and switch to phosphorus-rich formula to encourage flowering. Maintain consistent watering.
Flowering
6-10 weeksProfuse small lavender-blue daisy-like flowers open from the buds. Individual florets are 1/2 to 3/4 inch across, clustered in sprays covering the plant.
Deadhead spent blooms regularly to extend flowering period. Support tall stems with stakes if needed. Cut stems for bouquets frequently to prolong blooming.
Senescence & Dormancy
Variable; through winterFlowers fade and seeds develop. Foliage gradually yellows and dies back after frost. Plant enters winter dormancy.
Cut back dead stems to 4-6 inches above ground in late fall or early spring. Leave some stem height for winter protection in cold zones. Do not fertilize.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Spray foliage with water to increase humidity; use insecticidal soap or neem oil if severe. Ensure adequate moisture.
-
Improve air circulation by spacing plants adequately and avoiding overhead watering. Use sulfur dust or fungicide if needed. Prune lower foliage to improve airflow.
-
Remove infected leaves promptly. Avoid wetting foliage. Apply fungicide containing sulfur or copper if severe.
-
Spray with strong water stream; use insecticidal soap or neem oil. Encourage beneficial insects like ladybugs.
-
Use yellow sticky traps; spray with insecticidal soap or neem oil. Improve air circulation.
Uses
Edible flowers
CulinarySmall aster flowers can be used as decorative garnish for desserts and salads, offering a mild, slightly bitter flavor. They add visual appeal to plates and baked goods. [source]
Cut flower arrangements
HouseholdMonte Casino is a premium florist's choice for creating lush, full arrangements and wedding bouquets. The profuse small flowers create excellent filler and texture. [source]
Traditional herbal use
MedicinalAster species have been used in traditional medicine for respiratory support and to promote overall wellness. Leaves and flowers can be dried for herbal tea. [source]
Pollinator support
WildlifeMonte Casino attracts bees, butterflies, and other beneficial insects during its fall flowering period, providing crucial late-season nectar when few other flowers bloom. [source]
Dried flower crafts
CraftThe flowers dry beautifully and can be used in dried arrangements, wreaths, and potpourri. They retain color well and add delicate texture to 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
Cut stems early in the morning when flowers are just opening for longest vase life. Cut at a 45-degree angle above a leaf node. Stems last 10-14 days in water; change water every 2-3 days and re-cut stems. Commercial growers typically harvest when 50% of florets are open. Monte Casino is a premier cut flower variety.
Fun Facts
- 🌱 Monte Casino is so popular with commercial florists that it has become the industry standard for aster spray arrangements, particularly around Fall and holiday seasons.
- 🌱 The name 'New York aster' (Symphyotrichum novi-belgii) refers to the plant's origin in the northeastern United States, particularly around New York and New Jersey regions.
- 🌱 A single well-grown Monte Casino plant can produce over 200 individual flower sprays in a single season, making it one of the most productive flowering plants for the garden.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Monte Casino Aster planting timeline
Tell us your zip code and we'll calculate exactly when to start Monte Casino 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 Monte Casino Aster timeline →