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Plant Profile: Blazing Star (Liatris spicata)

Groton Garden Club
Masthead fot the Blazing Star plant profile has a picture of a field of purple blazing star flowers and the image includes growing information and details the pollinators it attracts

Liatris Blazing Star, also known as Dense Blazing Star or Gayfeather, is a perennial herbaceous plant belonging to the Asteraceae family. This striking plant is known for its tall, slender spikes of fluffy, purple flower heads that bloom from the top down. The flowers are densely packed along the stem, creating a feathery appearance. The foliage consists of narrow, grass-like leaves that form a basal clump. Liatris can grow up to 3-4 feet tall, making it an excellent choice for adding vertical interest to gardens.


Native Blazing Star and other Varieties 

Liatris spicata is native to Groton, there are other varieties of the plant, including nativars (cultivated native varieties), available. There are nativars available, including the white Liatris spicata ‘Alba’ (Gayfeather) a white version of the plant. While appropriate to the Groton growing zone, gardeners can also successfully grow Liatris spicata’s cousins that are not native to our area: Liatris pyconostachya (Prairie Blazing Star), Liatris ligulistylis (Rocky Mountain Blazing Star), Liatris microcephala (Dwarf Blazing Star), and Liatris punctata(Dotted Blazing Star). Just keep in mind that none of these are technically considered native plants.


 

Liatris prefers well-drained soils and can tolerate sandy and loamy conditions. It thrives in slightly acidic to neutral pH levels. Full sun is ideal for optimal growth and flowering. It can tolerate partial shade but may produce fewer flowers. While it is drought-tolerant once established, regular watering is needed during its initial growth period. Overwatering should be avoided to prevent root rot. Spring or fall is the best time to plant Liatris corms or seeds. Space plants about 12-15 inches apart to allow for proper air circulation.

 

As a native plant to Groton, Liatris Blazing Star plays a crucial role in the local ecosystem. It is well-adapted to the region's climate and soil conditions, making it a resilient and low-maintenance choice for gardeners. Liatris contributes to biodiversity by providing habitat and food for various pollinators and wildlife. It helps stabilize soil and prevent erosion with its deep root system.




Caring for Blazing Star Flowers

  • Watering: Moderate watering during dry spells is recommended, especially in the first year. Once established, it is fairly drought tolerant.

  • Mulching: Apply a layer of mulch around the base to retain moisture and suppress weeds.

  • Fertilization: Liatris typically does not require much fertilization. A light application of compost in spring can boost growth.

  • Pruning: Deadhead spent flowers to encourage more blooms and if you want to prevent self-seeding. It isn’t necessary to cut back in the fall as the spent blooms provide winter interest and a food source for hungry wildlife.

  • Pests, Diseases, Rabbits, and Deer: Generally, pest-resistant, but keep an eye out for aphids and spider mites. Good air circulation helps prevent fungal diseases. Liatris is generally considered deer and rabbit-resistant – but may be susceptible to being nibbled on in the early spring when its shoots are tender, and food is scarce. It is best to keep an eye on the plant when the plant first emerges and be prepared to protect it with chicken wire if necessary.

 

Blazing Star Brings Pollinator Interest

  • Monarch Butterflies: Essential for their migration, Liatris is a key source of nectar for adult butterflies.

  • Bees: Both native bees and European honeybees are frequent visitors, drawn to its rich nectar and pollen.

  • Hummingbirds: Attracted to the bright, tubular flowers, hummingbirds often visit for nectar.

  • Moths and Butterflies: Other species like swallowtails, painted ladies, and fritillaries also benefit from Liatris.

 



Winter Interest in Groton

As the weather turns cold and the pollinators leave Groton, don’t be quick to cut back your Blazing Star. This plant can provide winter interest in your garden and continues to support the local environment.

Brown bristle-like cones adorn the stems of litaris in the winter.
Blazing Star in Winter

After the flowers fade, Liatris produces attractive seed heads that can add texture and visual interest to the winter garden. Rather than cutting them back in the fall, these seed heads can persist through the winter, providing a natural, rustic appearance. The seed heads also offer food for birds and small wildlife during the winter months. Leaving them standing can support local wildlife and create a dynamic winter landscape. Liatris stems can remain upright even after the growing season has ended, adding architectural interest to the winter garden. The dried stems can catch frost or snow, creating a picturesque scene. To maximize winter interest, consider leaving the stems and seed heads in place until early spring before cutting them back. This approach not only enhances the garden's winter aesthetics but also benefits local wildlife.

 

Liatris Blazing Star is an excellent addition to gardens in Groton for its aesthetic appeal, ease of care, year-round interest, and ecological benefits. By planting Liatris, gardeners can support local pollinator populations and contribute to the conservation of native plant species.

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