Geum 'Blazing Sunset' AKA Avens
Geum chiloense 
Perennial
Cut flower
Full sun 
Zone 5
Height: 2 feet
 
Tall, thin stems bear fluffy double red flowers. Blooms for quite a long time, sending up new shoots as you cut.
 
Packet: Minimum 50 seeds
 
Certified organic seed (in British Columbia)