Thalictrum (Meadow Rue) adds a lovely light and airy feel to a border. Last year I saved lots of seeds and planted them in Spring, not one plant resulted. Maybe they need to be sown when fresh? There were however lots of self-sown seedlings so I got my extra plants anyway!
Lysimachia or Loosestrife loves a damp area and will tolerate shade. It is however a rapid spreader so be careful where you plant it. It is propogated by division of clumps in Autumn or Spring.
In the polytunnel Antirrhinums or Snapdragons as they are commonly known continue to do provide lots of colour. They propogate themselves from year to year.
Cosmos is doing well too, I love this shade. Deadheading ensures a continuity of blooms. Towards the end of the season I will allow some seed heads to form for propogating next years flowers. Gardeners always need to think ahead.
Galega officinalis “Alba” also known as Goat’s Rue or French Lilac does well in moist but well-drained soil. It isn’t fussy about siting, I have it in full sun and also in a partially shaded spot. It does well in both situations. It can be propogated by division or seed. It is on the Noxious Weed List in parts of America because of its rapid spread, I have not found it to be such a rampant spreader here.
Shasta Daisy, another perennial which does well in our area. It has a long flowering period and it too divides well to provide extra plants. It is very hardy which is useful considering our increasingly colder Winters in Ireland.