PL. —Lavandula pedunculataBotanical illustration — drop image
Lavandula pedunculata

Butterfly Lavender

SpringSummerFall
7b10bHardiness zone
Peak bloom windowZone 6b · frost-offset weeks
Winter
In bloom
Spring
Peak bloom
Summer
In bloom
Fall
Not in bloom
Peak bloom
In bloom
Background

Lavandula pedunculata — Butterfly Lavender — is a Mediterranean lavender native to Spain, Portugal, Morocco, and western Turkey, closely related to and often confused with French Lavender (Lavandula stoechas). It is distinguished by long, wiry flower stalks that lift the dense flower head well above the gray-green foliage, topped with prominent purple bracts that flutter like butterfly wings — the feature both common names refer to.

It shares French Lavender's need for sharp drainage and full sun, and dislikes wet or heavy soil, especially in winter. In frost-free zones it can self-seed readily around bare soil or gravel mulch, so deadhead spent stalks before seed sets if you want to keep it in check. Prune after the main flush to keep growth compact, but never cut back into old bare wood, which does not regenerate. The essential oil is high in camphor rather than the linalool that makes English Lavender prized for perfumery, so it has traditionally been used more for cleaning products and topical antimicrobial remedies than fragrance.

Growing lavender? Read the Lavender Growing Guide — which species suits your zone, drainage, pruning, and harvesting for drying, timed to your frost dates.
Keep apart
Care guide
SunFull sun
WaterLow
SoilWell-drained, sandy or gritty, neutral to alkaline
Spacing18–24 in
Height12–24 in
Zone7b – 10b
WinterHardy outdoors in zones 8a and warmer with sharp drainage; in zone 7b mulch lightly and leave top growth through winter for insulation. Elsewhere, grow in a container and move to a bright, cool (40–50°F) spot for winter.
Seasonal tasks
spring
watchCheck for lavender shab after wet spring weather — brown lesions girdling stems near the crown; remove and destroy affected stems
sowSet out nursery transplants or rooted cuttings after last frost into full sun with excellent drainage
summer
cutDeadhead spent flower stalks before seed sets — self-seeds readily in frost-free zones
watchMonitor for grey mould on stems and foliage during humid periods; improve air circulation
cutShear lightly after the main flush to tidy growth; stop above the woody base — old wood will not regenerate
fall
cutIn zones 9–10, give a light trim in fall; in zones 7–8, leave the season's growth in place to help insulate the crown through winter
Common problems

Lavender Shab Disease

Symptoms

Shoots wilt and die back individually while the rest of the plant looks healthy. Small dark fungal bodies may appear on infected stems, and dieback spreads over the season.

Treatment

Prune out and destroy affected stems well below the wilted section, cleaning tools between cuts. Remove severely infected plants. Improve air circulation, avoid overhead watering, and plant in well-draining soil to limit spread.

Phytophthora Root Rot

Symptoms

Wilting despite moist soil, yellowing leaves, stunted growth, and dark, decayed roots and crown tissue. Vines may collapse during hot weather.

Treatment

Plant in well-draining soil and avoid waterlogging. Remove and destroy affected vines. Improve drainage with raised beds or amended soil and avoid overwatering.

Botrytis (grey mould)

Symptoms

Grey fuzzy mould on petals and stems, worst in cool wet conditions.

Treatment

Remove affected parts immediately. Improve air circulation. Avoid overhead watering. Apply copper fungicide if severe.