Alert: Limited Online Availability

Now that fall is here, we have limited our stock for online purchase. Find Monrovia plants at your local garden center. Pre-order for 2023 will be available later this year. ×

Triumph Aster

Aster x alpellus 'Triumph'

Loads of large, purple, daisy-like flowers with cheerful yellow centers cover the dense mound of green foliage. This petite, summer-blooming aster is at home with natives in short grass meadows and wildflower gardens, and the compact form makes it equally ideal for pots and at the front of borders. An herbaceous perennial.
There are very few rules in gardening, but perhaps the most important one is to work within your zone. Choosing plants that grow and thrive in your particular climate is the very first step toward having a beautiful garden . Learn More

Your climate might be too cold for this plant:


Full sun, Partial sun

Keep soil moist, but not soggy.


Due to the seasonal nature of plants, availability at your local garden center is not guaranteed. Give them a call before visiting.

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Botanical PronunciationASS-ter al-PELL-us
Average Size at MaturityQuickly reaches 8 to 12 in. tall, 12 to 15 in. wide.
Bloom TimeLate Spring into Summer
Design IdeasThis summer blooming Aster adds color and texture to sun drenched beds and mixed perennial borders. Edge a walkway or patio with the contrasting blooms or create a container garden with other bright orange bloomers that highlight the striking orange centers on Triumph. Add this little beauty to a rock, butterfly or cottage garden and enjoy the calming violet and energizing orange colors all summer long.
Deciduous/ EvergreenHerbaceous
Flower AttributeFlowers for Cutting, Showy Flowers
Flower ColorPurple
Foliage ColorGreen
Garden StyleCottage, Rustic
Growth HabitMounding
Growth RateFast
Landscape UseBorder, Container, Accent, Edging, Small Spaces
Light NeedsFull sun, Partial sun
Special FeatureAttracts Butterflies, Easy Care, Waterwise, Fast Growing, Compact Form
Water NeedsModerate
Watering NeedsKeep soil moist, but not soggy.
Companion PlantsBee Balm (Monarda); Coneflower (Echinacea); Butterfly Weed (Asclepias); Black-Eyed Susan (Rudbeckia); Butterfly Bush (Buddleja)

Thrives in moist, fertile, slightly acidic, well-drained soils, but highly adaptable. Prefers cool summer climates. Water deeply, regularly in first growing season to establish an extensive root system; once established, prefers regular moisture. For a tidy appearance, remove old foliage before new leaves emerge.

This Plant's Growing Zones: 3-9

USDA Cold Hardiness Zone Map

Your USDA Cold Hardiness Zone:

Your climate may be too cold for this plant