Herbmione Granger Aug 10, 2017:

Sommeraster is the common name for Callistephus chinensis. https://de.wikipedia.org/wiki/Sommeraster There are many varieties, one of which I grow in my garden. I think that gardeners will also recognize "full-petaled/petalled," as this is a term I already knew, but "double" could be preferred (it certainly is by Phil).

martina1974 (asker) Aug 10, 2017:

Dear Phil! I am very sorry for this. However, I only posted a translation request for the term "Sommeraster" from German into Spanish (but not into English). Please post your answer and I will definitely award points when closing it!

philgoddard Aug 9, 2017:

Martina You posted a question about this same sentence a month ago, and someone answered, but you ignored this and closed the question without awarding points.

In my opinion, and as a translator of many gardening books, none of the three answers is correct. I think it should be "double, summer-flowering asters". You left out the beginning of this seed catalogue entry, which is online, and says that the plant is Callistephus chinensis, China aster. That's its common name, which is Krallenaster in German, and which appears at the top of the entry.

"Sommerastern" is a description, summer-flowering asters, not the name of the plant.

I'd like to post this, but I don't want to go to all the trouble just for you to close the question without choosing an answer (not necessarily mine, though I believe it's the right one).
http://issuu.com/grafik13/docs/rs_kat_2017_dv_web/85 (top of p. 83)