Dahlia Coltness Mixed is one of the most popular dahlia varieties, mainly due to its vibrant colours and versatility in the garden. This mix includes, among others, the following colours: deep red, orange, soft yellow, white, pink and purple. The foliage of this dahlia is dark green, which enhances the colourful and playful appearance and makes the plant a real eye-catcher in any garden. The beautiful single flowers have an average diameter of approximately 10- 20 cm. Because Dahlia Coltness Mixed requires plenty of sunlight to bloom well, it is recommended to plant it in a sunny location where it can receive at least six hours of sunlight per day. Make sure the soil is well-drained. In return for this sunny position, the gardener will be rewarded with abundant summer flowering, which can be prolonged by regular deadheading. This encourages continuous flowering and keeps the plant healthy and attractive.
This dahlia is also highly suitable for use in bouquets, as the flowers are sturdy enough to be used in vases and floral arrangements. The combination of bright colours makes it an ideal choice for anyone looking to add a cheerful accent to the home or garden. The mix of colours creates a lively and playful atmosphere, making this dahlia perfect for creating striking borders or attractive flower beds.This low-growing mix is very suitable for use in borders, flower and cutting gardens, bee and butterfly gardens, as a cut flower, and for growing in large pots and containers. During the growing season, the dahlias develop tubers. These should be lifted from the ground before the first frost. Store the dahlia tubers in a dry, frost-free and dark place. They can optionally be stored in cardboard boxes with some sand. In the following year, the tubers can be planted outdoors again from mid-May, once there is no longer any risk of frost. Dahlia Coltness Mixed is highly attractive to bees, butterflies, bumblebees, hoverflies and other beneficial insects. Dahlia Coltness Mixed flowers from June till October. Non hardy perennial. Heigt: 45 - 60 cm.
Indoor sowing: half March - end of April
Outdoor sowing: half May - beginning of June
Germination: 7 - 14 days
Germination temp.: 17 - 21°C
Sowing depth: shallow - ½ cm
Transplanting: end of april - middle of may
Plant distance: 30 - 60 cm
Plant position: very sunny and sheltered
Flowering period: half June - October
Sow indoors from half March. Sow in seperate pots of approx. 5 cm across. Sow in moist sowing soil or potting soil mixed with vermiculite. Sow thinly and shallow and cover the seeds with a very thin layer of soil or some grit. Put the pots in a propagator and put away somewhere light and warm. Keep moist and warm. Keep the temperature as even as possible and don't let the temperature drop during the night. The ideal germination temp. for dahlias is between 15 - 25 °C. Cover the propagator with a lid to retain the moisture.
Remove the lid when the seedlings emerge. Harden the seedlings of by putting them outside during the day for approx. 10 - 14 days from the beginning of May. They can also be put outdoors in a cold frame. Put the plants on a very sunny, sheltered plot with free draining soil after this period. Keep them 30 - 60 cm apart. Low growing varieties 30 cm and high growing varieties need 60 cm.
Sow outdoors from the middle of May, when there's no longer any risks of night frosts. Put them on a very sunny, sheltered plot with free draining soil. Sow thinly and shallow. Cover the seeds with a very thin layer of soil of press them gently in the soil. Keep them 30 - 60 cm apart. Low growing varieties 30 cm and high growing varieties need 60 cm. High growing varieties need some support. Young plants can be eaten by slugs and snails. They need protection against these pests. Deadhead ofter to ensure a flowering period till the middle of the autumn. Keep well watered especcialy during dry spells, don't let Your dahlias dry out. Remove the tubers for the first frosts. Store them during the winter in a dry, cool and dark place. They can be planted in the soil from the middle of May, when there's no longer any risk of night frost, in the following year.
