Dahlia ‘Snowbound’ is a popular variety cherished for its elegant, pure white blooms. These captivating flowers bring sophistication to any garden space and are often chosen to create serene displays or complement other vibrant colors in floral arrangements. Its classic elegance makes it a favored choice for landscapes.
Understanding Dahlia Snowbound
Dahlia ‘Snowbound’ is distinguished by its large, fully double flowers, which can reach 8 to 10 inches across. This classifies it as an Informal Decorative or Dinnerplate dahlia. The petals are often delicately ruffled or wavy, adding texture and depth to the pure white blooms, sometimes with a faint cream tint at the center. These substantial flowers are held atop robust, dark green foliage, creating a striking contrast.
The plant typically grows 3 to 4.5 feet tall. Its strong stems effectively support the massive blooms. ‘Snowbound’ is a prolific bloomer, producing many flowers throughout the season, making it an excellent choice for continuous garden display and a prized cut flower.
Planting Dahlia Snowbound
Dahlia ‘Snowbound’ thrives in full sun, requiring at least 6 to 8 hours of direct sunlight daily for abundant blooms. The soil should be well-draining to prevent tuber rot. Improve soil fertility and drainage by incorporating a 4-inch layer of compost or other organic matter and tilling it into the soil.
Plant ‘Snowbound’ tubers in spring, after the last frost and when soil temperature reaches at least 60°F (15°C). This timing aligns with planting other warm-season crops like tomatoes. Dig a hole to place the tuber horizontally, with the “eye” or sprout facing upwards. Position the top of the tuber 3 to 6 inches below the soil surface.
Space tubers 12 to 18 inches apart for proper air circulation and growth. After placing the tuber, cover it with soil, gently pressing down to remove air pockets, then water thoroughly to settle the soil. In dry climates, light weekly watering may be necessary until the sprout is established.
Caring for Dahlia Snowbound
Consistent care during the growing season maximizes ‘Snowbound’ bloom potential. Once established and about 6 inches tall, provide consistent deep watering every two to three days, especially in dry climates. Maintain consistent moisture levels, but avoid overwatering to prevent tuber rot.
Fertilizing promotes vigorous growth and flowering. When planting, use an organic, slow-release fertilizer with low nitrogen. About 30 days after planting, apply a granular fertilizer like a 5-10-10 or 10-20-20 blend. For taller varieties like ‘Snowbound’, which reach 3 to 4 feet, staking is recommended to support large blooms and prevent stem breakage. Place stakes at planting time to avoid damaging the tuber later.
Deadheading spent blooms encourages more flowers throughout the season by preventing seed production. Pinching off the main stem’s top when the plant is about 12 inches tall and has 2-4 sets of leaves promotes branching and more stems. Monitor for common pests and diseases as part of routine care. Good air circulation and proper watering help prevent many issues, allowing the plant to thrive.
Winter Care for Dahlia Snowbound
In colder climates (zones 3-7), ‘Snowbound’ tubers are not winter hardy and must be lifted before the first hard frost. After foliage is blackened by frost, carefully dig up the tubers, ensuring no damage. Gently remove excess soil from the tubers.
Allow tubers to dry for a few days in a cool, dry, well-ventilated area, away from direct sunlight. This curing process toughens the skin and prevents rot during storage. Store dried tubers in a cool, dark, dry location, ideally between 40-50°F (4-10°C). Acceptable storage mediums include peat moss, vermiculite, or wood shavings, which help maintain stable moisture and prevent dehydration.
Periodically inspect stored tubers throughout winter for signs of rot, mold, or shriveling. Discard any damaged or diseased tubers to prevent spread. Proper storage ensures tubers remain viable for replanting the following spring, allowing you to enjoy ‘Snowbound’ blooms year after year.