Dahlia Decorative American Sun (Pack of 2)

Dahlia Decorative American Sun

The Dahlia Decorative American Sun, also known as the American Sun Dahlia, is a bold and radiant summer-blooming flower with large, fully double blooms in rich golden-yellow tones. Loved by gardeners for its upright growth, mid-to-late season flowering, and long vase life, this variety brings warmth and structure to borders, cutting gardens, and patio containers. With bright coloring and dependable performance, it’s a seasonal standout that elevates any garden design with sunny, glowing charm.

• USDA Zones: 8–10 grown as perennial; 3–7 grown as annual
• Bloom Time: Mid-summer to fall
• Height: 34"
• Planting depth/Spacing: 2–4"/18–24"
• Deer Resistant: No
• Sun Requirements: Full sun/part sun

To learn more about the dahlias’ upkeep and maintenance, please visit our blogs and videos below.

This decorative dahlia thrives in well-drained soil and full to partial sunlight. Whether you’re creating pollinator-friendly plantings or harvesting brilliant blooms for indoor arrangements, it offers reliable beauty and garden versatility. It pairs well with cooler hues and makes a bright backdrop for companion plants with blue, purple, or red flowers.

Key Characteristics and Benefits of Dahlia Decorative American Sun

• Showy Golden Blooms: Lush yellow petals create a striking focal point from midsummer through fall.
• Cut Flower Essential: Long-lasting in arrangements, with strong stems and radiant color.
• Pollinator Magnet: Attracts bees, butterflies, and other beneficial insects throughout the season.
• Container Friendly: Ideal for large pots and raised beds in sunny spots.
• Extended Bloom Window: Blooms prolifically until the first frost with proper care and deadheading.

Growing Dahlia Decorative American Sun

Plant tubers in spring after the danger of frost has passed. For optimal health and airflow, follow proper dahlia spacing—plant 18 to 24 inches apart and 2 to 4 inches deep in nutrient-rich, well-draining soil. Stake plants if needed to support their height as they mature.

Climate and Soil Requirements

This dahlia prefers loose, loamy soil and thrives in USDA Zones 8–10 as a perennial. In colder climates, treat as an annual or lift and store tubers at season’s end. Amend soil with compost before planting and avoid soggy locations to prevent rot.

Sunlight and Watering

Meet proper dahlia sun requirements by placing plants in full sun (6+ hours daily). In hot regions, afternoon shade can help reduce stress. Water deeply once or twice per week, letting the top inch of soil dry out between irrigations.

Care and Maintenance

Deadhead regularly to encourage continued blooming. Mulch to retain soil moisture and suppress weeds. In zones below 8, dig up tubers in fall and store them in a cool, dry, frost-free location for replanting the next year.

For more tips on caring for flower bulbs, explore our complete Flower Bulb Growing Guide .

Multiple Trusted Brands at Grow Organic

At Grow Organic, we offer Dahlia Decorative American Sun from multiple high-quality, trusted brands. This gives you more options and flexibility to choose the best-performing tubers for your specific region and gardening goals. Whether you're planting a cutting garden or brightening borders, our curated selection ensures premium results.

Learn More About Growing Dahlias

For detailed tips on planting, care, and harvesting, visit our in-depth guide: Growing Summer-Blooming Flowers: Dahlias. It’s packed with expert insights for beginner and experienced gardeners alike.

Enhance your pollinator-friendly planting with bold summer color from our Pollinator Flower Collection. Baboon flowers are a stunning addition to any eco-conscious garden design.