Hydrangea macrophylla Lanarth White
Hydrangea macrophylla Lanarth White
Hydrangea macrophylla Lanarth White
Hydrangea macrophylla Lanarth White
Hydrangea macrophylla Lanarth White
Hydrangea macrophylla Lanarth White
Bigleaf Hydrangea, French Hydrangea
A superb hydrangea arrived in very good condition. It already seems almost ready for the summer! I can't wait to see it in flower ❤️
Alex, 09/03/2026
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Description
Hydrangea macrophylla 'Lanarth White' is a flat-head hydrangea with white flowers bearing a pink or blue heart depending on the acidity of the soil. This old variety is still relevant today because its long summer flowering is valued in the garden when few bushes are blooming. It forms a compact bush of about 1.3 m (4.3 ft) in all directions, with healthy green foliage. Hardy down to -15° C (5° F), this hydrangea should be placed in a shady position, in neutral to acidic soil. It is easy to grow, suitable for coastal areas, and only requires annual pruning in spring and watering in summer to keep the soil fresh.
Hydrangea macrophylla is a deciduous bush native to Japan, where its beauty has been appreciated for centuries and mentioned in poems dating back to the 8th century! In a country that attaches great importance to plants, festivals are even dedicated to this bush. Hydrangeas belong to the Hydrangeaceae family. 'Lanarth White' is an old variety discovered in Great Britain in 1947, in Lanarth (Cornwall) by Michael Williams. Its coastal origin gives it good wind resistance.
It is a flat-headed variety ("lace-cap"), with the centre formed by very small tight fertile flowers, surrounded by simple white sterile flowers. The fertile flowers turn blue in acidic soil and pink in neutral to alkaline soil (the white colour is not affected by the soil pH). This particular inflorescence is visually quite different from the large balls carried by round-headed Hydrangea macrophylla. In fact, this type of lace-cap hydrangea can be confused with certain Viburnums by beginners (Viburnum plicatum, V. sargentii 'Onondaga') even though these two genera belong to separate botanical families.
A rather compact bush, about 1.3 m (4.3 ft) in all directions, this hydrangea, like all Hydrangea macrophylla, is not strictly an ericaceous plant, but prefers neutral to acidic soils. A semi-shaded to shaded position in a warm climate will suit it well, as well as watering in summer because it does not like drought (of the soil and atmosphere), which can cause its leaves to wither. Care consists of annual pruning in spring, before the new leaves emerge. This bush with its long summer flowering is hardy to -15° C (5° F). Severe frosts can damage the tips of the branches, but they easily regrow after spring pruning. Easy to grow, it can live a very long time.
'Lanarth White' will brighten up shaded areas of the garden, under large trees or in woodland. It will go perfectly with shade-loving perennials such as Hostas with large leaves, palmate-leaved Rodgersias, or Solomon's Seals with their unique flowering. All these plants with a striking habit will enhance the flowering of our hydrangea. The little-known Sarcococcas with their delicately scented winter flowering will also be good companions, as well as the delicate and romantic bell-shaped flowers of Enkianthus campanulatus.
Hydrangea macrophylla Lanarth White in pictures
Plant habit
Flowering
Foliage
Botanical data
Hydrangea
macrophylla
Lanarth White
Hydrangeaceae
Bigleaf Hydrangea, French Hydrangea
Cultivar or hybrid
Planting and care
Plant in spring or early autumn, preferably in a slightly shaded position, for example against an east-facing wall or even north-facing. In very cold areas, it may be prudent to protect its stump with a thick mulch. Keep it sheltered from cold, drying winds. It does not necessarily require ericaceous soil, but appreciates a deep, moist but well-drained, and fairly fertile soil. In poor soil, enrich with a good base fertiliser before planting, and mix the existing soil with a substrate containing some compost.
If planting is done at the base of a protective wall and the soil is dry, place the root ball at least 30 cm to 40 cm (11.8 in to 15.7 in) away from it and incorporate a significant amount of well-decomposed compost to better retain moisture in the soil. After planting, beware of slugs, which are quite fond of young leaves. Very hardy, it can be planted in cold regions without fear. Water regularly in hot periods to prevent the foliage from wilting during dry spells.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
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