Lavandins

Lavandin – “Grosso” Very dense spherical plant, 30 inches, with mid-green foliage that grays toward the end of the season. Mid-green peduncles with very dark edges grow 12-14 inches bearing compact, broad conical spikes with an occasional whorl. Corollas of blue-violet are borne on finely pubescent calyces of a darker violet. This lavender is one of the most popular oil producing plants due to its high yielding spikes and also makes a superb ornamental hedge.
Lavandin - “Fat Spike” Similar to the variety ‘Grosso’ bearing somewhat larger flower spikes. Very dense, spherical plant 30 inches with mid-green foliage that grays toward the end of the season. Mid-green peduncles with very dark edges grow 12-14 inches bearing very dense, compact conical spikes. Corollas of blue-violet borne on calyces of darker violet. The large dense flower spikes are great for cut flowers as well as oil production.
Lavandin - “Provence” Stocky, fragrant plant grows to 36 inches. Silver-green foliage and spikes of blue or pale violet blooms in mid summer. Compact long blooming flowers will continually bloom throughout the season if picked correctly. Has a long, slender flower wand. The buds come cleanly and easily away from the stalk. Used in dried bud collecting, perfumes, crafts and culinary uses. Very fragrant.

Definitions:
Penduncle - The stalk bearing a flower or fruit.
Corolla - Petals of a flower considered a group or unit.
Pubescent - Of certain plants covered with a layer of fine short hairs or down.
Calyce - The sepals of a flower, typically forming a whorl that encloses the petals and forms a protective layer around a flower in bud.
Sepal - Each of the parts of the calyx of a flower, enclosing the petals and typically green and leaf-like.