Believer™ Purple Aster (Symphyotrichum novi-belgii 'Believer Purple') brings stunning late-season color with its rich purple petals encircling bright yellow centers. Blooming from late summer into fall, this compact perennial grows 12 to 18 inches tall and spreads up to 18 inches, making it perfect for borders, containers, and fall displays. Its neat, mounded growth habit and profusion of flowers provide contrast in any garden. Hardy in USDA zones 4–8, Believer Purple Aster is an excellent choice for adding cool-toned beauty to autumn landscapes.
This New York Aster cultivar thrives in full sun but tolerates light shade, especially in warmer climates. Its narrow, lance-shaped green leaves form a dense mound that stays lush throughout the growing season. Resistant to deer and rabbits, this low-maintenance perennial attracts butterflies and other pollinators with its plentiful blooms. Ideal for mass plantings, pollinator gardens, and decorative pots, it pairs beautifully with ornamental grasses, sedums, and other fall perennials.
Believer Purple Aster Care
Plant Believer Purple Aster in well-drained, moderately fertile soil with a pH range of 5.5 to 7.5. Ensure the planting location receives at least 6 hours of sunlight daily for the best floral display. Water regularly to maintain evenly moist soil during the growing season, but avoid waterlogging. Applying a balanced, slow-release fertilizer in early spring supports healthy growth and prolific blooming. Mulch around the base to help retain soil moisture and regulate soil temperature.
Pinch back stems in early summer to encourage bushier growth and a greater number of flower clusters. After the first frost, cut the plant back to the ground to promote fresh regrowth the following spring. In containers, provide consistent moisture and consider staking if the stems become leggy.
Believer Purple Aster Spacing
For borders or mass plantings, space plants 12 to 18 inches apart to allow for airflow and healthy spread. In container plantings, use a pot that is at least 12 inches wide and deep to support the plant’s root system and mounded form. Closer spacing can create a dense, colorful display, while wider spacing highlights the individual shape of each plant.
- SKU:
- BPABELIEV-GC
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Quart Pot
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

2.5 Quart
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

#1 Pot
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

#2 Pot
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

#3 Pot
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

#5 Pot
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

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Arrival Guarantee
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Free 1-Year Plant Warranty
All bushes, perennials & trees come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.

Pre-Ordered Plants
Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated Spring Shipping Schedule
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants Shipping Now
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.