This relatively old variety of floss flower remains popular for good reason. The compact, uniform plants bear large, fluffy, powder-blue flowers. With a vigorous, open habit, Ageratum Blue Mink is perfect for adding texture and colour to bedding, borders and containers. Try growing ageratum in wildlife gardens where they will attract butterflies to their blooms. Height: 30cm. Spread: 30cm.
Sow from late winter to mid spring at 15-18C in a good seed compost. Sow ageratum seed on the surface of the compost and gently firm down. Keep soil damp but not wet. Do not exclude light. Germination usually takes 10-15 days. When seedlings are large enough to handle, transplant and grow them on in cooler conditions until large enough to plant outdoors. When ageratum plants are well grown and all risk of frost has passed, acclimatise them to outdoor conditions over 7 to 10 days. Transplant outdoors in a sheltered position in full sun on moist, fertile, well-drained soil at a distance of 15-30cm apart.