• Aromatic Aster (Aster oblongifolius) flowering plant with lavender-blue daisy-like blooms, golden yellow centers, and narrow aromatic green foliage.
  • Aromatic Aster (Aster oblongifolius) flowering plant with lavender-blue daisy-like blooms, golden yellow centers, and narrow aromatic green foliage.
  • Aromatic Aster (Aster oblongifolius) flowering plant with lavender-blue daisy-like blooms, golden yellow centers, and narrow aromatic green foliage.
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Eden Valley Seeds

Aromatic Aster Seeds (Aster oblongifolius) – Perennial Herb Flower Seeds

Aromatic Aster Seeds (Aster oblongifolius) – Perennial Herb Flower Seeds

$16.99 USD
$16.99 USD
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Key Features

  • Variety: Aromatic Aster, a native North American perennial wildflower.

  • Flower Colors: Produces attractive lavender-blue to violet flowers with yellow centers.

  • Plant Characteristics: Forms a bushy, branching plant with narrow, aromatic green leaves.

  • Garden Uses: Suitable for wildflower gardens, cottage gardens, borders, and pollinator-friendly landscapes.

  • Unique Features: Late-season blooms provide valuable nectar for bees and butterflies.

Growing Benefits

  • Adds beautiful late-season color to gardens and natural landscapes.

  • Attracts beneficial pollinators, including bees and butterflies.

  • Provides a charming perennial addition to cottage-style gardens.

  • Tolerates relatively dry conditions once established.

  • Supports native wildflower planting and biodiversity in suitable regions.

Seed Specifications

  • Common Name: Aromatic Aster, Sky Blue Aster

  • Botanical Name: Symphyotrichum oblongifolium (synonym: Aster oblongifolius)

  • Plant Type: Herbaceous perennial flowering plant

  • Colors: Lavender-blue to violet petals with yellow centers.

  • Height: Approximately one to two feet, depending on growing conditions.

  • Sunlight: Full sun; tolerates partial shade.

  • Soil: Well-drained soil; adaptable to sandy, rocky, and average garden soils.

  • Water: Moderate during establishment; relatively drought-tolerant once established.

  • Germination Time: Variable depending on seed freshness, temperature, and growing conditions.

  • Sowing Depth: Surface sow or lightly cover with a thin layer of soil.

  • Spacing: Allow approximately 18–24 inches between established plants.

  • Growing Zones: Generally USDA Zones 4–7.

  • Flowering/Maturity: Typically blooms from late summer through fall.

  • Uses: Ornamental gardens, pollinator gardens, native landscapes, and traditional botanical gardens.

Growing Tips

  • Choose a sunny location with good soil drainage.

  • Keep the seed-starting medium lightly moist during germination.

  • Avoid excessive watering once plants become established.

  • Allow enough room for mature plants to spread naturally.

Seed Storage

Store seeds in a cool, dry, and dark location. Keep them in an airtight container or sealed seed packet away from humidity and direct sunlight. Label the container with the plant name and storage date.

Unique Facts About Aromatic Aster

  • Aromatic Foliage: Its leaves release a balsam-like fragrance when crushed.

  • Late-Season Blooms: It flowers in fall when many other garden plants have finished blooming.

  • Pollinator Attraction: Its flowers provide nectar and pollen for native bees, butterflies, and other beneficial insects.

  • Natural Spreading Habit: The plant spreads through horizontal stems called stolons, gradually forming attractive flowering patches.

Growing Instructions

Planting Season

Start seeds in spring after providing any required cold-moist stratification. Alternatively, sow outdoors in fall to allow natural winter conditions to support germination.

Seed Sowing and Preparation

Prepare a seed-starting tray with a well-draining seed-starting mix. Follow the seed supplier's instructions regarding cold stratification. Sow seeds on the surface or cover them very lightly with fine growing medium.

Sowing Depth and Spacing

Avoid burying seeds deeply because they need suitable light and moisture conditions to germinate. Once seedlings are established, transplant them with approximately 18–24 inches of space between plants.

Sunlight and Soil

Choose a location receiving full sunlight for the best flowering. Aromatic aster grows well in well-drained soil and can adapt to sandy, rocky, and moderately fertile conditions.

Watering and Germination

Keep the growing medium evenly moist without making it waterlogged. Germination time varies with temperature, seed condition, and pretreatment. Once seedlings develop, gradually reduce watering frequency while preventing prolonged dryness.

Transplanting

Move healthy seedlings outdoors after they develop several true leaves and are strong enough to handle. Harden them gradually by introducing outdoor conditions before permanent planting.

Fertilizing

Aromatic aster generally performs well in average garden soil. Avoid excessive fertilizer, especially high-nitrogen products, as they can encourage leafy growth rather than flowering.

Plant Care and Maintenance

Remove competing weeds while plants establish. Lightly trim growing stems in early summer if a more compact shape is desired. Allow sufficient space for the plant's natural spreading habit.

Flowering and Maturity

Established plants typically produce clusters of lavender-blue flowers with yellow centers during late summer and fall. Flowering time depends on climate, sunlight, and growing conditions.