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Plant details
Coltness Gem' is best grown as half hardy annual for a bright, summer display. It is classed as a dwarf bedding dahlia and produces single, yellow-eyed blooms in colours including pink, purple, red, white, yellow and many are zoned with a second colour. Sow seeds in early spring in a propagator, harden off the plants and plant them out when all danger of frost has passed.
Family: Asteraceae
Genus: Dahlia
Cultivar: Coltness Gem
Plant type: Tender perennial
Flower colour: Mixed
Foliage colour: Dark green
Feature: Flowers
Sun exposure: Full sun
Soil: Well-drained/light, Acidic, Chalky/alkaline, Moist, Sandy
Hardiness: Tender
Skill level: Experienced
Height: 45cm
Spread: 45cm
Time to plant seeds: March to April
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