Old fashioned but we know, but they are the best for the insects.
Lovely tall, flowing pink and fuchsia pink single flowers, with fennel like foliage. Long lasting flowers, our lasted until well into November.
Scatter straight on to prepared soil in the Autumn or late Spring.
Or, sow indoors, 0.5cm deep, water well, keep warm at 15-20 degrees, seedlings up 14-21 days, transplant when large enough to handle.