Floss Flower ‘Red Flint’ Tall Seeds (Ageratum mexicanum)

The Floss Flower ‘Red Flint’ is a striking tall-growing variety of Ageratum mexicanum, producing masses of unique, soft, fluffy red-rose flower clusters. Unlike the traditional blue forms, this bold variety adds a vibrant splash of color and stands taller, making it ideal for borders, cutting gardens, and background planting. Flowering over a long season, it is a magnet for pollinators while adding a distinctive texture to the garden.

What Makes It Special

• Rare red-toned fluffy flowers – a unique twist on the classic Ageratum

• Taller habit for cut flowers and garden impact

• Continuous flowering from summer until frost

• Loved by butterflies and bees

Key Features

• Botanical name: Ageratum mexicanum

• Variety: Red Flint (Tall)

• Seed count: Approx. seeds per pack

• Height/Spread: 45–60 cm tall, 25–30 cm spread

• Position: Full sun; well-drained fertile soil

• Flowering period: June–October

Ideal For

• Mid- to back-border planting

• Cottage and cut-flower gardens

• Adding height and contrast in beds

• Pollinator-friendly planting schemes

Sowing Instructions

1. When to sow: February–April indoors

2. How to sow:

   • Sow seeds on the surface of moist compost; do not cover, as light aids germination

   • Keep at 18–22°C; germination takes 7–14 days

3. Transplanting: Prick out seedlings into pots when large enough. Harden off before planting outdoors after the last frost

4. Spacing: 25–30 cm apart

5. Care: Regular deadheading encourages more blooms and prolongs flowering