DeGroot

Serving your perennial, flowerbulb, fruit and vegetable plant needs since 1957.

Dahlia, Decorative 'Duet'

Dahlia, 'Duet' is a fabulous bicolor variety with deep red petals toward the heart of the bloom against crisp white at the tips. These are large, double flowers that are up to 5-6 inches wide. 'Duet' dahlia blooms in mid-summer and will produce flowers through the fall until frost! It's a vigorous grower with many blooms throughout the season. This large-flowered Decorative type dahlia grows to 30-35" tall. A classic award-winner, Dahlia 'Duet' has been a star performer in summer gardens since 1955. They look fantastic as part of a border and make exceptional cut flowers. By planting Dahlia 'Duet', you can expect butterflies and other pollinators flying around your garden or patio this Summer! This plant is supplied as a tuberous root.

Dahlias are a tender perennial that is vigorous and fast growing. Bulbs must be lifted from the ground in zones 7 and lower. They make an outstanding addition to the flower border or container garden. Flowers bloom the first year and add a lovely spot of color in the garden. Heat resistant, your Dahlias will bloom from mid-summer until frost. They are a welcome addition to the garden late in the season when other flowers are fading.

Consider using Dahlia for container gardening.


A Dahlia is also great for a container garden! It can be the large hero of this arrangement! You can add many other combinations of plants for sun to the mix, for a great look on porches and patios.

Plant Details +

Height 30 to 35"
Spacing 15"
Hardiness Tender in zones 7 and lower. It will need to be lifted in late fall - once the foliage dies back simply dig it up and store in a cool, frost free location.
Exposure Full sun
Foliage Green
Flower Bicolor variety with deep red petals and pure white tips, 5 to 6" large blooms
Bloomtime Midsummer - frost

General Information +

General Characteristics: An old-fashioned garden favorite and superb, long-lasting cut flower. Dahlias are grown from a Tuberous Root. Flowers are good for cutting. Just one flower would be a lovely display! Compact bedding dahlias are ideal for container gardens and for flower beds. Use to add height and color to gardens. This plant is attractive to bees, butterflies and/or birds! Please note that pinching of the secondary buds will produce even larger flowers. Average Water Needs; Water regularly; do not overwater.

Tip: You may need a strong stake to support each plant. It is a good idea to put this in first and then place the plant by its side. Keep the plant moist yet well-drained. Deadhead spent flowers to promote the growth of additional flower buds.

Planting/Care Instructions +

Planting Instructions: Plant Dahlias in well-drained soil in a sunny location. Plant in spring, after ground, warms to about 50º F. 1. Dig a hole 3-4" deep. 2. Set the tuberous root firmly in place. 3. Cover the tuberous root with soil and water thoroughly. Supply ample moisture and fertilizer during the growing season. When the plant reaches 1-1/2' in height, trim the entire plant to 1'. In about two weeks trim the plant again back to about 1-1/2'. This will encourage your Dahlia to produce an abundance of flowers.