Large-flowered Tickseed (Coreopsis Grandiflora ‘Walcoreop’ FLYING SAUCERS)

Plant: Table of Contents

Large-Flowered Tickseed (Coreopsis grandiflora ‘Walcoreop’ FLYING SAUCERS): A Comprehensive Guide

Welcome to this comprehensive guide on the large-flowered tickseed, specifically the Coreopsis grandiflora ‘Walcoreop’ FLYING SAUCERS. In this blog post, we will explore every aspect of this beautiful plant, from its cultural requirements to its propagation and common diseases. By the end of this article, you’ll have an in-depth understanding of this magnificent plant and be equipped with the knowledge to grow and care for it successfully.

What is Large-Flowered Tickseed (Coreopsis grandiflora ‘Walcoreop’ FLYING SAUCERS)?

Introduction to Large-Flowered Tickseed

Large-flowered tickseed, scientifically known as Coreopsis grandiflora ‘Walcoreop’ FLYING SAUCERS, is a stunning perennial plant that belongs to the genus Coreopsis. It is renowned for its vibrant and showy flowers, making it a popular choice among gardeners and landscaping enthusiasts.

Originating from North America, this exceptional plant is a testament to the beauty of native flora and has become a cherished addition to gardens around the world. With its striking appearance and relatively low maintenance requirements, it is no wonder that the large-flowered tickseed has earned a special place in the hearts of plant enthusiasts.

Key Takeaways – Large-Flowered Tickseed (Coreopsis grandiflora ‘Walcoreop’ FLYING SAUCERS)

Before delving into the cultural requirements, uses, and maintenance of the large-flowered tickseed, let’s take a moment to highlight some key takeaways about this captivating plant:

  • Scientific Name: Coreopsis grandiflora ‘Walcoreop’ FLYING SAUCERS
  • Common Name: Large-flowered tickseed
  • Family: Asteraceae
  • Hardiness Zone: 4-9
  • Growth Habit: Upright and clump-forming
  • Flower Color: Yellow with a distinct red ring around the center
  • Blooming Period: Late spring to early summer
  • Sunlight Requirements: Full sun to partial shade
  • Soil Preferences: Well-draining, loamy soil
  • Watering Needs: Moderate to low water requirements

Now that we have acquainted ourselves with the basic details of the large-flowered tickseed, let’s embark on a detailed exploration of its culture, uses, and care guidelines.



When it comes to watering the large-flowered tickseed, it is essential to strike a balance to ensure optimal growth and flowering. This plant thrives in moderately moist soil, particularly during its active growing season. However, it is crucial to avoid overwatering, which can lead to root rot and other moisture-related issues.

Watering Guidelines:
– Provide moderate watering during the plant’s active growth period, ensuring that the soil is evenly moist but not waterlogged.
– Allow the soil to dry out slightly between waterings to prevent waterlogged conditions.


The large-flowered tickseed exhibits a remarkable tolerance for various light conditions, making it a versatile option for different garden settings. While it prefers full sun, it can also thrive in partial shade, showcasing its adaptability to diverse environments.

Sunlight Recommendations:
– Plant in an area that receives full sun for at least 6-8 hours a day for optimal blooming and vigorous growth.
– If full sun is not available, the large-flowered tickseed can tolerate partial shade, especially in regions with intense afternoon sun or high temperatures.


Proper nutrition is key to promoting healthy growth and abundant flowering in the large-flowered tickseed. By providing the right balance of nutrients, you can enhance the plant’s overall vigor and resilience, resulting in a more splendid display of flowers.

Fertilization Tips:
– Apply a balanced, slow-release fertilizer in early spring to provide essential nutrients for the growing season.
– Avoid excessive use of high-nitrogen fertilizers, as this can lead to lush foliage at the expense of flower production.


The soil composition plays a significant role in the well-being of the large-flowered tickseed. As with many plants, a well-draining and nutrient-rich soil is crucial for ensuring that the plant thrives and remains free from common soil-related issues.

Soil Preferences:
– Opt for a well-draining, loamy soil that provides good aeration to the plant’s roots.
– Incorporate organic matter, such as compost, into the soil to improve its structure and fertility.


Pruning is an essential aspect of maintaining the health and appearance of the large-flowered tickseed. By incorporating regular pruning techniques, you can encourage continuous blooming and prevent the plant from becoming overly dense or sprawling.

Pruning Guidelines:
– Deadhead faded flowers regularly to promote additional blooming and prevent the plant from expending energy on seed production.
– Trim back the plant in early to mid-summer to encourage a tidy growth habit and stimulate new growth.


Expanding your collection of large-flowered tickseed plants or sharing them with fellow gardening enthusiasts can be achieved through effective propagation methods. Understanding the techniques for propagating this plant enables you to create new plants and maintain a thriving garden.

Propagation Techniques:
– Divide mature clumps every 2-3 years in early spring to rejuvenate the plant and create new divisions for propagation.
– Propagate from seeds sown indoors in late winter to early spring, providing a head start for the growing season.

Container Popularity

The large-flowered tickseed’s adaptability and striking visual appeal have made it a popular choice for container gardening. Whether displayed on patios, balconies, or as part of a larger container arrangement, this plant brings a burst of color and elegance to any outdoor space.

Container Gardening Tips:
– Select a well-draining potting mix when planting the large-flowered tickseed in containers to prevent waterlogging.
– Place the containers in areas that receive ample sunlight, as the plant thrives in sunny conditions, even when grown in pots.

Common Diseases

Disease Diagnosis

While the large-flowered tickseed is generally resilient, it is susceptible to certain diseases and ailments that can hinder its growth and vigor. Identifying and addressing these issues promptly is crucial to maintaining the plant’s health.

Common Diseases:
Powdery Mildew: Characterized by a white powdery coating on foliage, powdery mildew can affect the plant, particularly in humid or crowded growing conditions.
Fungal Leaf Spots: Irregular brown or black spots on leaves can indicate fungal leaf spot diseases, which may require proper cultural management to mitigate.

Common Pests

Pest Management

In addition to diseases, the large-flowered tickseed may encounter various pests that can compromise its vitality and overall appearance. By implementing vigilant pest management practices, you can safeguard the plant from potential infestations.

Common Pests:
Aphids: These small, soft-bodied insects can cluster on new growth, causing damage and distortion to the plant’s foliage.
Spider Mites: These tiny pests can cause stippling and webbing on the undersides of leaves, potentially leading to reduced plant vigor.

Botanist’s Tips

Fun Facts

Before we delve further into the care and maintenance of the large-flowered tickseed, let’s take a moment to appreciate some fascinating facts about this exceptional plant:

  1. Large-flowered tickseed has been recognized as one of the All-America Selections (AAS) Winners, a prestigious award that reflects its outstanding garden performance.
  2. The distinctive red ring at the center of the yellow flowers has earned this variety the moniker “FLYING SAUCERS,” capturing the imagination of gardeners and nature enthusiasts.
  3. This plant is a magnet for pollinators, attracting an array of beneficial insects such as butterflies and bees, contributing to the biodiversity of the garden ecosystem.

Links to External Resources

To further supplement your knowledge and understanding of large-flowered tickseed and its cultivation, here are some valuable external resources that delve into various aspects of this remarkable plant:

  1. The American Horticultural Society – Coreopsis grandiflora ‘Walcoreop’ FLYING SAUCERS
  2. University of Florida IFAS Extension – Tickseed Flowers
  3. Missouri Botanical Garden – Coreopsis grandiflora: Large-Flowered Tickseed
  4. North Carolina State University – Tickseed Maintenance Guide
  5. The Spruce – Growing Tickseed in the Garden

With a wealth of resources at your disposal, you can expand your knowledge and gain insights that will enrich your journey with the large-flowered tickseed.

In conclusion, the large-flowered tickseed, particularly the Coreopsis grandiflora ‘Walcoreop’ FLYING SAUCERS, stands as an exceptional flowering perennial that captivates with its vibrant blooms and enduring charm. As you embark on the journey of growing and caring for this remarkable plant, may this comprehensive guide serve as a valuable companion, offering insights, tips, and practical advice to ensure that your large-flowered tickseed flourishes and enriches your outdoor spaces with its radiant beauty.

Remember, the journey of nurturing and cultivating plants is a rewarding one, filled with awe-inspiring moments and a deep appreciation for the wonders of the natural world. With a little care and attention, the large-flowered tickseed is sure to enchant and delight, becoming a cherished centerpiece in your garden or landscape.

Happy gardening!

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Peter Taylors

Expert botanist who loves plants. His expertise spans taxonomy, plant ecology, and ethnobotany. An advocate for plant conservation, he mentors and educates future botanists, leaving a lasting impact on the field.