denver daisy black eyed susan

Denver Daisy Black-Eyed Susan: A Sunshine in Your Garden

The Denver Daisy Black-Eyed Susan (Rudbeckia hirta ‘Denver Daisy’) is a popular cultivar of the classic Black-Eyed Susan, known for its large, semi-double, golden-yellow flowers with a prominent dark brown-purple central cone. This cheerful bloom brings a touch of the wild to gardens and landscapes and is relatively easy to grow, making it a favorite among both beginner and experienced gardeners. It’s a great addition to any garden aiming for late-season color.

What is the Denver Daisy Black-Eyed Susan?

The Denver Daisy is a cultivar of the Black-Eyed Susan, which itself is native to North America. It differentiates from the typical Black-Eyed Susan with its larger, showier flowers. The ‘Denver Daisy’ boasts a more densely packed petal arrangement, creating a fuller, more impactful floral display. Its deep golden yellow petals surround a dark chocolate brown central cone. These plants generally reach a height of 1-2 feet and spread about a foot wide, making them suitable for borders, containers, and mass plantings. You can learn more about the general characteristics of Rudbeckia hirta on Wikipedia.

Cultivation and Care

Light and Soil

Denver Daisies thrive in full sun, requiring at least 6 hours of direct sunlight per day. While they are adaptable to various soil types, they prefer well-drained soil. Adding compost or other organic matter to the soil before planting will improve drainage and fertility.

Watering

Water regularly, especially during dry spells. Once established, Denver Daisies are relatively drought-tolerant. Avoid overwatering, as this can lead to root rot.

Fertilizing

Fertilize lightly in the spring with a balanced fertilizer. Avoid excessive fertilization, as this can promote foliage growth at the expense of flowering.

Deadheading

Deadheading spent flowers will encourage continuous blooming throughout the summer and into the fall. Simply snip off the faded flowers just below the flower head.

Propagation

Denver Daisies can be propagated by seed or by division. Seeds can be sown directly into the garden in the spring or started indoors 6-8 weeks before the last frost. Division is best done in the spring or fall.

Benefits of Growing Denver Daisies

Beyond their aesthetic appeal, Denver Daisies offer several benefits:

• Attracts pollinators such as bees and butterflies
• Deer resistant
• Long bloom time
• Easy to grow and maintain
• Excellent cut flowers

Frequently Asked Questions

Are Denver Daisy Black-Eyed Susans perennials?

Denver Daisy Black-Eyed Susans are often treated as annuals or biennials, though they may behave as short-lived perennials in some climates. Depending on your region and care, they may reseed themselves.

How tall do Denver Daisy Black-Eyed Susans grow?

They typically grow to be 1 to 2 feet tall.

When is the best time to plant Denver Daisy Black-Eyed Susans?

The best time to plant is in the spring after the last frost.

Do Denver Daisy Black-Eyed Susans need full sun?

Yes, they thrive in full sun, requiring at least 6 hours of direct sunlight per day.

Are Denver Daisy Black-Eyed Susans deer resistant?

Yes, they are generally considered deer resistant, making them a good choice for gardens in areas with deer populations.

Summary

The Denver Daisy Black-Eyed Susan is a delightful and easy-to-grow addition to any garden. With its bright golden-yellow petals and dark central cone, it brings a cheerful splash of color to landscapes. By providing proper sunlight, well-drained soil, and regular watering, you can enjoy a profusion of blooms throughout the summer and fall, attracting pollinators and adding beauty to your outdoor space.