Day 3.

"Dittany is a powerful healing herb and restorative and may be eaten raw to cure shallow wounds."

— Phyllida Spore, One Thousand Magical Herbs and Fungi

Dittany was a healing and restorative herb, one of the plants found in One Thousand Magical Herbs and Fungi. In addition to dittany's essence being applied topically, the raw plant could be consumed to heal shallow to moderate wounds. 

Hermione Granger used Essence of Dittany to heal Ron Weasley's arm when he splinched it Disapparating soon after the trio's escape from the British Ministry of Magic in 1997. She used it again to heal the snake bite Harry received on his arm from Nagini after they were attacked in Godric's Hollow, and once more following the Break-in of Gringotts, to heal the burns they had received from the burning treasure contained with the Lestrange Vault.

Dittany might have been quite rare, because Hermione was only able to obtain a small bottle of Essence of Dittany for her, Harry and Ron's travels. Alternatively, as only small amounts were needed to heal the various wounds the trio acquire, perhaps a little went a long way. Essence of Dittany produced greenish smoke upon usage.

Prompt

22 Rounds on Sock B

Using a green to represent the leaves. knit the CHART linked. For toe-up socks, start at the bottom right at 1. For cuff-down socks, start at the top left at 1. The gray stitches are omitted for the 68-st sock and included for the 72-st sock.