Lavandula angustifolia, formerlyL. officinalis, is aflowering plant in thefamilyLamiaceae, native to theMediterranean basin. Its common names includelavender,true lavender andEnglish lavender[2] (though it is not native to England); alsogarden lavender,[3]common lavender andnarrow-leaved lavender.
It is a strongly aromaticshrub growing as high as 1 to 2 metres (3+1⁄2 to6+1⁄2 ft) tall. Theleaves areevergreen,2–6 centimetres (1–2+1⁄2 inches) long, and4–6 millimetres (3⁄16–1⁄4 in) broad. The flowers are typically purple (lavender-coloured), produced on spikes 2–8 cm (1–3 in) long at the top of slender, leafless stems 10–30 cm (4–12 in) long.[citation needed]
English lavender is commonly grown as anornamental plant. It is popular for its colourful flowers, its fragrance, and its ability to survive with low water consumption. It does not grow well in continuously damp soil and may benefit from increased drainage provided by inorganic mulches, such as gravel. It does best inMediterranean climates similar to its native habitat, characterised by wet winters and dry summers. It is fairly tolerant of low temperatures, and is generally considered hardy toRoyal Horticultural Society zone H6, orUSDAzone 5.[5] It tolerates acid soils, but favours neutral toalkaline soils, and in some conditions it may be short-lived.[6]
'Hidcote Superior', a compact evergreen shrub 40 cm × 45 cm (16 in × 18 in) with fragrant gray-green foliage and deep violet-blue flowers in summer, prefers full sun, well drained soil, low water, hardy to −30 °C (−22 °F), western Mediterranean species
'Munstead' (syn. Dwarf Munstead, Munstead Blue and Munstead Variety) L. angustifolia variety, 30 cm (12 in) tall, having pink-purple to lavender-blue inflorescences that are slightly fragrant,[21] named afterMunstead Wood in Surrey, which was the home ofGertrude Jekyll
'Sarah', grows to 15–60 cm (5.9–23.6 in), the flowers are petite, as is the plant, used as a short edging, or as a very fragrant addition to the window box, dark violet flowers
'Lady Lavender', grows to 45 cm (18 in), fragrant, gray-green foliage and lavender-blue flowers in summer, prefers full sun, well-drained soil, low water, hardy to −30 °C (−22 °F)
'Hidcote' (syn. Hidcote Variety, Hidcote Blue, Hidcote Purple) L. angustifolia variety. 40 to 50 cm (16 to 20 in) tall, with silver-gray foliage and deep violet-blue inflorescences, named afterHidcote Manor in England as it was cultivated there byLawrence Johnston
'Jean Davis' 50–60 cm (20–24 in) tall, up to 1 m (3.3 ft). A pale pink flowered lavender with exceptionally fruity taste
'Hidcote Giant'. A Lavandula × intermedia lavandin. Very vigorous grower (90 to 100 cm; 35 to 39 in) with a lovely strong fragrance. This has large deep lavender-purple flowers on very long 60 cm (24 in) stems.
'Vera' 75 to 90 cm (30 to 35 in). Thought to be the original species lavender, harvested for its oil.
The flowers and leaves are applied inherbal medicine.[22] Commercially, the plant is used to producelavender essential oil used in balms, salves, perfumes, cosmetics, and topical applications.[23] Lavender essential oil, when diluted with a carrier oil, is commonly used formassage therapy oraromatherapy.[23]
The flowers are also used as a culinary herb, most often as part of the North American version of the French herb blend calledherbes de Provence.
Lavandula angustifolia is included in theTasmanian Fire Service's list of lowflammability plants, indicating that it is suitable for growing within a building protection zone.[24]
Lavandula hybrids are referred to as lavandins. Hybrids betweenL. angustifolia andL. latifolia (spike lavender) are calledLavandula ×intermedia. They bloom later than the ordinary English lavenders.