The Cloisters has just launched their own official blog - it's very nice to have company!
Here is the URL: http://blog.metmuseum.org/cloistersgardens ; and here is their feed:
via their Introduction:
Welcome to The Medieval Garden Enclosed, a blog dedicated to the plants and gardens of The Cloisters, a branch of The Metropolitan Museum of Art. Enter and explore the role of plants and gardens in medieval life and art, learn how to find and grow medieval herbs and flowers, discuss the long histories of many familiar garden plants, discover which roadside weeds were once valued medicinals, and encounter legendary plants like the mandrake (Mandragora officinarum.) Read more »