These herbs were grown in Mary's own garden and dried by her. The sachets are made from linen-type material, embroidered with the name and resemblance of each of the three herbs, and tied with ribbon. I chose these three from my garden based on information I found below (and other sites not included here). These are my first attempts at embroidery, so I followed patterns for two and then designed the third myself.
From: http://www.gallowglass.org/jadwiga/herbs/herbhandout.htm
Mint (Mentha species), of all kinds were used in food and medicine. Mint vinegar was used as a mouthwash; mint sauce restored the appetite. Used for all stomach ailments and in treating venom and wounds
Sage (Salvia officinalis), a green woody perennial, symbolic of age and wisdom. The leaves were used in salads and green sauces and as a spring tonic. "A man shall live for aye who eats sage in May." 'Cleans out' the system.
Thyme (Thymus species), a low, creeping perennial with tiny leaves, symbolic of courage. Used in cooking, and in baths and as an astringent. Burned as to fumigate against infection and to scent sacrifices.