What are the general differences in flower shape across lavender types?

The differences in flower shape are one of the most distinguishing features among the main types of lavender, making them relatively easy to identify:

1. English Lavender (Lavandula angustifolia)

   • Flower Shape: The flowers are borne on long, slender, unbranched spikes that rise gracefully above the foliage. The individual florets (tiny flowers) are densely packed along the spike, creating a smooth, classic "lavender wand" appearance. The spike often tapers slightly at the top.

   • Bracts: The small, leaf-like structures (bracts) at the base of the flower clusters are inconspicuous and blend in with the overall spike.

   • Overall Impression: A refined, elongated, and classic spike of densely clustered blooms.

2. Lavandin (Lavandula x intermedia)

   • Flower Shape: Similar to English lavender in overall form, but the flower spikes are generally longer, thicker, and often branched, meaning a single stem can have multiple flower spikes emerging from it. The individual florets can be slightly more spaced out on the stem compared to the very dense packing of English lavender. The tip of the spike tends to come to a more defined, narrow point.

   • Bracts: Like English lavender, the bracts are generally inconspicuous.

   • Overall Impression: A more robust, substantial, and often multi-headed flower spike, excellent for cutting due to its length.

3. Spanish Lavender (Lavandula stoechas)

   • Flower Shape: This is the most distinct and easily recognizable flower shape. The flower heads are compact, dense, and typically barrel-shaped or pinecone-shaped. The true, tiny flowers are hidden within this dense structure. The most striking feature is the prominent, colorful, petal-like bracts (often called "bunny ears," "butterfly wings," or "flags") that emerge from the top of the main flower head. These bracts are sterile (don't produce seeds) and provide the main visual appeal.

   • Bracts: The "bunny ears" are the defining characteristic, ranging in color from deep purple to pink or white, contrasting with the main flower head.

   • Overall Impression: A unique, almost whimsical flower resembling a small pineapple or pinecone topped with vibrant "ears."

4. French Lavender (Lavandula dentata)

   • Flower Shape: Produces slender, elongated, somewhat loose spikes of small, individual flowers. These spikes are generally topped with small, delicate, somewhat wispy, often paler violet or greenish bracts. These bracts are much less prominent and "ear-like" than those of Spanish lavender.

   • Bracts: Present but not as showy or large as Spanish lavender's bracts. They are often thin and feathery.

   • Overall Impression: A more delicate, airy flower spike with subtle, fringed leaves that are a key part of its ornamental appeal. The blooms appear almost continuously in warm climates.

In summary:

• English Lavender: Classic, dense, unbranched, slender spikes.

• Lavandin: Longer, thicker, often branched spikes, more robust than English.

• Spanish Lavender: Distinctive "pineapple" or barrel-shaped heads with prominent "bunny ear" bracts on top.

• French Lavender: Slender, looser spikes with small, wispy bracts and toothed foliage.

These differences in flower shape are key identifiers when trying to distinguish between the various lavender types in a garden or nursery. The Lavender Farm in Door County Wisconsin likely showcases these varied flower shapes among their lavender plants, and you can buy lavender products online at islandlavender.com, often featuring images of the specific lavender types used.