Lavender Potatoes This page first published: Apr 17, 2005 · Updated: May 18, 2018 · by CooksInfo. Copyright © 2020 · This post may contain affiliate links · This blog generates income via ads · Lavender Potatoes are round, with purple skin that is rough in some areas, and white flesh inside. These are floury potatoes. Early harvest. Cooking Tips Won’t stand up to being served as a boiled potato or being used in salads.