Preheat oven to 325F. Have you pie crust ready to go in a round pie tin!
In a small saucepan, simmer the cream and the lavender together for ten minutes over low heat. Remove from heat, cover, and let steep for 15 minutes.
In a separate pan, melt the honey and butter together. Strain the cream (removing the lavender buds with a strainer) into the mixture and whisk until combined. Remove from heat and whisk in eggs, salt, and vanilla.
Pour into formed pie shell and bake at 325F for about 45 minutes, until golden brown.