Gloriosa, Daisy Seeds

Gloriosa Daisy Seed

Fiery red, orange, and gold surround dark centers
North American plants handle heat and lean soils
Robust summer flowering attracts beneficial pollinators
A bold choice for naturalistic borders and bouquets

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Key Attributes

Botanical Name

Rudbeckia hirta

Days to maturity

75 Days

Sun

Full Sun

Packet

50 Seeds

Zones 3–9 Check your growing zone

About Gloriosa, Daisy Seed, Daisy Seed

Gloriosa daisies, also known as Rudbeckia hirta 'Gloriosa,' are a vibrant and dynamic variety of the traditional Black-eyed Susan, renowned for their striking appearance and robust growth. Originating from North America, these daisies have been cultivated since the 18th century and have become a staple in gardens for their cheerful and resilient nature. Gloriosa daisies are characterized by their large, radiant blooms with a distinctive color gradient, featuring fiery, orange to red petals with a dark, central cone.

Growing details

Planting

Sow Depth

1/8"

Days to Germination

7–21 days

Germination Type

D - Surface Sow

In-row plant spacing

8-20"

Plant profile

Life Cycle

Perennial

Hardiness Zone

Zones 3-9

Plant Height

30 inches

Growth Habits

Clumping, Upright

Seed & variety

Seeds Per Ounce

106,063

Color

Black, Orange, Red

Seed Type

Open Pollinated

Before Planting

For Daisy, select a full-sun site with well-drained soil and good air circulation. Remove perennial weeds, loosen compacted ground, and incorporate modest compost without making the bed overly rich. Prepare a fine, firm seedbed. Because light aids germination, prepare to surface sow or press seed into the medium without a heavy covering.

Planting

Sow daisy outdoors in fall or start indoors according to its germination requirement; many perennial species benefit from a cool period before warmth. Maintain even moisture during germination and provide bright light after emergence. Harden indoor-grown seedlings before planting outdoors. Transplant while young to minimize root disturbance, and thin direct sowings after sturdy true leaves develop.

Watering

Daisy performs best with regular, moderate watering. Keep the root zone evenly moist, allow slight surface drying between applications, and avoid wetting foliage late in the day.

Fertilizer

Daisy generally needs only a light spring application of compost or slow-release balanced fertilizer. Avoid repeated high-nitrogen feeding, which creates weak growth and fewer flowers.

Harvesting

Harvest daisy as buds begin opening or when blooms reach full color, depending on intended use. Cut above a branching point, place stems in water promptly, and remove spent flowers regularly.

Tips

Remove faded daisy blooms before seed forms to encourage continued flowering. Shear lightly if plants become leggy, and protect containers from drying faster than garden beds.

Pests & Diseases

Leaf spots, powdery mildew, Botrytis, rust, and crown rot occur on daisies. Remove diseased lower leaves after bloom and divide crowded perennial clumps. Persistent wilt from a brown crown calls for disposal, not extra water. Avoid carrying infected foliage into winter mulch around healthy crowns.

Monitor daisy for aphids, thrips, mites, beetles, slugs, and chewing caterpillars. Remove badly infested growth, use physical controls first, and apply labeled treatments outside pollinator-active hours.