Description
Dahlia Coltness Mixed Seeds – Dahlia variabilis
Dahlia Coltness seeds produce cheerful, semi-double blooms in a vibrant mix of bright colours, including red, yellow, orange, pink, and white. These early-flowering dahlias grow on bushy plants reaching around 60cm tall, bringing lively, long-lasting colour to summer borders.
A reliable performer that’s easy to grow from seed, Coltness Dahlias thrive in sunny spots and are ideal for both formal displays and relaxed cottage-style planting. Their sturdy stems and vivid blooms make them excellent for cut flower arrangements. With their generous flowering season and wide colour range, Dahlia Coltness is a favourite for creating eye-catching garden displays with minimal effort.
Key Features:
Botanical name: Dahlia variabilis
Vibrant mix of colours – semi-double blooms in warm, summery shades
Early to flower and continues blooming into late summer
Height to 60cm – bushy, upright habit
Perfect for borders, bedding schemes, and cut flower gardens
Easy to grow from seed – ideal for gardeners of all levels
Great for pollinators and long-lasting summer displays
Sowing & Growing Instructions:
Sow indoors in trays or modules from February onwards
Transplant outdoors in late spring/early summer once seedlings are hardened off and all frost risk has passed
Choose a sunny, well-drained site with fertile soil
Water regularly and feed during the flowering season to encourage strong growth and continuous blooms
Deadhead spent flowers to promote prolonged flowering throughout summer
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