Lavandula stoechas ‘Otto Quast’, commonly known as Spanish Lavender, is a compact, highly ornamental lavender known for its bold flower heads and extended bloom season. It’s a standout choice when you want strong color and structure in a drought tolerant planting.

The foliage is narrow and gray green, forming a dense, rounded mound with a soft, silvery tone. It provides a clean, consistent base that works well in both formal and informal designs.

The flowers are the main feature, with deep purple, cone-shaped blooms topped by distinctive petal-like bracts that resemble small flags. This variety is known for its long flowering period, often blooming from early spring through summer with proper care.

It has a tidy, mounding habit that makes it ideal for borders, mass plantings, or as a repeating element in a design.

Lavandula ‘Otto Quast’ grows best in full sun and requires well drained soil. It thrives in dry conditions and performs best with minimal water once established.

It typically reaches about 2 to 3 feet tall and wide, forming a compact, rounded shrub. It is well suited for USDA zones 8 through 10. The foliage is evergreen.

This plant has low toxicity and is generally safe for gardens with pets and children.

The flowers attract pollinators such as bees and butterflies.

It is generally deer and rabbit resistant.

Lavandula stoechas ‘Otto Quast’ fits especially well into Mediterranean, coastal, and formal garden designs, where its color and form can be used to create rhythm and structure.

It pairs well with plants like Cistus x purpureus to reinforce a drought tolerant Mediterranean palette, Santolina to echo silvery tones with a contrasting texture, and Thymus serpyllum to create a low, flowering ground layer that complements the planting.

Expert Tip:

Place this in full sun with excellent drainage, because it performs best in dry, open conditions. Light pruning after each bloom cycle will help encourage repeat flowering and maintain a compact shape. I love contrasting these with ornamental grasses like Lomandra. 

— Nick from Rooted Theory