I am translating Dai Hongci‘s diary. He is describing an Austrian school for young nobles (貴冑學堂）. The above has a slightly unexpected word order. I am wondering, whether I understand it correctly (as grass interwoven into a thick mattress) , or whether 織草 is a plant name (cotton or something).
Below are the context (sentence by sentence), my German translation, as well as my rush attempt at an English one. A photography of a print, which I appended below, can be found here:
格致器械室、藏书室，藏籍颇富。/ Das Zimmer mit den naturwissenschaftlichen Apparati sowie die Bibliothek bergen zahlreiche Bücher. / The room with the natural sciences equipment and the library room contain plenty of books.
观马房，旁为练马场。/ Besichtigung der Stallungen. Daneben befindet sich das Übungsgelände der Rösser. / Inspection of the stables. Next to them there is the training ground for the horses.
堂后因山为园，林木优胜，织草为茵。/ Hinter der Schule, an die Berge grenzend, ist ein Garten zu finden. Des Waldes Bäume sind zahlreich und florieren, die Gräser wachsen dicht wie eine Matte./ Behind the school, adjacent to the hills, there is a garden (or park). Its trees are numerous and flourishing. Its grass is thickly interwoven as a mattress.
TLDR: I understood 因 without 草字頭 as 連接, adjacent because of the Song poem: 水边小丘因古城, 上有巨竹数百个
