Liatris with spikes

Common name Dense Blazing Star
Latin name Liatris spicata
Quantity per packet Minimum 100 seeds

This native perennial provides an abundant nectar source throughout summer, supporting numerous pollinator species while increasing floral diversity in ecological landscapes.

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Product information
Product
identification
Common nameDense Blazing Star
Latin nameLiatris spicata
FamilyAsteraceae
TypePerennial flower
CyclePerennial
Quantity per packMinimum 100 seeds
Code produitAKENE-0027
Product
description

Dense Blazing Star (Liatris spicata) is a spectacular perennial known for its tall violet-purple flower spikes that bring height, elegance, and color to the garden throughout summer. Its distinctive vertical form contrasts beautifully with the rounded shapes of Purple Coneflower, Black-eyed Susan, and other prairie perennials. Highly attractive to bees, butterflies, and many other pollinators, it is an essential plant for biodiversity-focused gardens. Its long bloom period and architectural habit also make it an excellent choice for perennial borders, wildflower meadows, and naturalistic plantings.

Easy to grow, Dense Blazing Star thrives in full sun and light, sandy to loamy, well-drained soil. Once established, it shows good drought tolerance thanks to its deep root system, making it a durable and low-maintenance perennial. Its fine, graceful foliage remains attractive throughout the season, while its flower spikes open in a unique pattern from top to bottom, extending the ornamental display. Hardy and reliable, this perennial returns faithfully year after year with increasingly generous flowering.

Beyond its ornamental value, Dense Blazing Star plays an important ecological role by providing nectar and pollen during the height of pollinator activity. Its flowers continuously attract butterflies and bees, helping enrich garden biodiversity. They are also highly valued for fresh and dried bouquets because of their excellent vase life. Paired with Wild Bergamot, Blue Vervain, Black-eyed Susan, and Purple Coneflower, Liatris spicata creates prairie-inspired plantings rich in color, texture, and wildlife value.

Sowing
guide
Sowing periodAutumn or spring after cold stratification
Best time
Autumn or spring
Sowing depth5 mm (0.2 in)
Spacing / density
30 to 45 cm (12 to 18 in)
Germination temperature18 to 22°C (64 to 72°F)
Germination time20 to 30 days
Propagation
Propagate by seed or by dividing mature clumps. Division quickly produces vigorous flowering plants.
Growing
method
Sow Dense Blazing Star seeds in autumn or spring after a period of cold stratification to improve germination. Plant the seeds approximately 5 mm (0.2 in) deep in a light growing medium and maintain temperatures between 18 and 22°C (64 to 72°F). Germination generally occurs within 20 to 30 days when the medium remains evenly moist without becoming waterlogged. Young plants thrive in full sun and well-drained soil. As they mature, they gradually develop deep root systems and produce increasingly impressive flower spikes, with the most spectacular flowering beginning in the second year.
Soil
and care
ExposureFull sun
Soil
Light, sandy to loamy, well-drained soil. This species prefers soils that never remain waterlogged.
Soil pHAcidic to neutral
Watering
Moderate watering is recommended during establishment. Once rooted, Dense Blazing Star tolerates dry periods well thanks to its deep root system.
Fertilization
A light application of compost in spring is generally sufficient. Avoid excessive nitrogen, which encourages foliage growth at the expense of flowering.
Care levelLow
In spring, remove the previous season's dry stems to allow new growth to emerge freely. During summer, water only during prolonged drought, as this perennial prefers well-drained soil. Spent flower spikes can be left standing to feed birds or harvested for fresh and dried arrangements. Leave the stems through autumn to provide shelter for beneficial insects. Dense Blazing Star becomes increasingly floriferous with age.
Container
growing
Recommended pot size
20 to 30 L (5 to 8 gal)
Dense Blazing Star grows exceptionally well in containers thanks to its compact root system and elegant vertical habit. Use a container of at least 20 to 30 L (5 to 8 gal) filled with a light, well-drained growing medium. Place it in full sun to encourage sturdy flower spikes and abundant blooming. Container-grown plants bring pollinators to patios and balconies while requiring very little maintenance.
Bloom,
harvest
and garden
Its spectacular violet flower spikes attract abundant pollinators while adding dramatic vertical interest to the garden. Its hardiness and long bloom season make it one of the finest native prairie perennials.
This native perennial provides an abundant nectar source throughout summer, supporting numerous pollinator species while increasing floral diversity in ecological landscapes.
Garden use
Dense Blazing Star is perfect for pollinator gardens, prairie meadows, and perennial borders. Its upright flower spikes create striking vertical accents that contrast beautifully with the rounded forms of Black-eyed Susans and Purple Coneflowers. It attracts abundant butterflies and bees while providing a long-lasting summer display. Its exceptional hardiness and low maintenance make it a dependable choice for ecological gardens throughout Canada.
Bloom period
The violet flower spikes open gradually from the top downward, extending the bloom period and creating a striking display in perennial gardens.
Flower colorViolet-purple
Foliage colorGreen
Harvest
Beginning in the second year, from July through September. Flowers can be harvested for fresh or dried arrangements.
Fruiting
Seeds mature within the flower spikes after blooming and may be harvested or left in place for natural reseeding.
Wildlife appealButterflies and bees
Size
and facts
Height60 cm to 1.2 m (24 to 48 in.)
Spread30 to 45 cm (12 to 18 in)
Growth rateModerate
Hardiness zoneUSDA Zones 3–8
Minimum temperature-40°C (-40°F)
Foliage typeDeciduous
Papillonstrue
Insectes utilestrue
Résistant aux cerfstrue
Pet friendlytrue
Planting
partners
Good companions
Black-eyed Susan, Purple Coneflower, Wild Bergamot, Blue Vervain
Avoid planting with
Northern Blue Flag Iris, Marsh Marigold, Horsetail, Ligularia
Recipe
and inspiration
Dense Blazing Star is not generally grown for culinary purposes but is highly valued for fresh and dried floral arrangements. Some historical traditions also attribute medicinal uses to the plant, although today it is primarily cultivated for its ornamental beauty and ecological value. Its nectar-rich flowers provide an important food source for bees and butterflies throughout the summer, making it a favorite for biodiversity-focused gardens.
Frequently asked questions
Dense Blazing Star seeds are best sown in autumn or spring after a period of cold stratification. This treatment improves germination and encourages more uniform seedling development.
Its long nectar-rich flower spikes attract a remarkable diversity of bees, butterflies, and occasionally hummingbirds, making it one of the best native plants for supporting summer pollinators.
Yes. Dense Blazing Star adapts very well to container growing when planted in a well-drained growing medium and placed in full sun. It adds outstanding vertical interest to patios and balconies.
Flowering generally begins during the second growing season and extends from July through September, depending on growing conditions.
Yes. Once established, Dense Blazing Star requires very little maintenance, tolerates dry periods well, and returns reliably year after year.
The availability of our seeds varies depending on seasonal availability, production schedules and supplier inventory. Certain varieties may only be offered for a limited time based on their natural growth cycle, sowing period or available stock. These product pages are designed to help and inspire gardeners in choosing the right seeds for vegetable gardens, flower beds, pollinator gardens, container growing, naturalization projects and sustainable outdoor spaces.