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Rhododendron Lady Lasa

Rhododendron Lady Lasa® 'BOUTI0150’
Rhododendron, Rosebay, BOUTI0150

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This variety from the Domaine de Boutiguéry, the largest conservatory of hybrid Rhododendrons in France, offers a magnificent flowering in shades of coral and salmon, with hints of pale yellow and dark brown. Very resistant to diseases, this rhododendron is also hardy, provided it is given its ideal planting conditions: acidic, moist to wet, well-drained soil in shade or the morning sun.
Height at maturity
1 m
Spread at maturity
1 m
Exposure
Partial shade, Shade
Hardiness
Hardy down to -18°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time March to May, October to November
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Flowering time April to May
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Description

The Rhododendron 'Lady Lasa' is a variety born at the Domaine de Boutiguéry with a compact and rounded habit, is very floriferous, and produces large bouquets in shades of coral and salmon. Its large flower buds open in April and May in spherical clusters of large bell-shaped flowers. The inside of the flower is pale yellow warmed by coral orange halos, its throat is dark brown, and the outside of the flower is salmon pink. With its small size, this rhododendron can be planted in gardens, small or large, in acidic soil, in shade or in the morning sun.

Rhododendrons and azaleas belong to the Ericaceae family, like Pieris, Heather, and Bilberries. These plants like limestone-free soils with an acidic tendency and humid climates. Rhododendrons, like other acid-loving plants, have a shallow and weak root system, which makes them sensitive to drought and compact and suffocating soils.

The Rhododendron 'Lady Lasa' was created by Virginie de la Sablière at the Domaine de Boutiguery in Brittany, France's largest conservatory of hybridised rhododendrons. It is a superb variety with a compact habit, slow growing up to 1m in height and width at maturity. Its evergreen and leathery leaves are shiny, evolving from light to dark green. They are elliptical in shape, elongated, and measure 6 to 10 cm long. The young shoots emerge in spring in purple-brown, adding additional ornamental value to this variety. Flowering takes place in late April and lasts for three weeks in May. The multiple large and rounded flower buds open in clusters of grouped flowers at the ends of the branches, which are perfectly round. They evolve in shades of coral and salmon, soft and bright. They almost completely cover the plant.

The compact Rhododendron 'Lady Lasa' is suitable for planting in flower beds, small hedges, cool rockeries, or as a standalone plant in small gardens. It prefers a shaded or east-facing exposure in the northernmost regions, with gentle morning sun and protection from the afternoon's heat. Planted in acidic soil, it can be associated with other acid-loving shrubs: Pieris, Azaleas, Japanese Maples, and Skimmia. Plant it at the back of a small flower bed with perennials that thrive in shaded and cool areas, such as Hostas, Japanese Anemones, and Ferns.

Plant habit

Height at maturity 1 m
Spread at maturity 1 m
Habit Irregular, bushy
Growth rate normal

Flowering

Flower colour salmon
Flowering time April to May
Inflorescence Corymb
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Evergreen
Foliage colour dark green

Botanical data

Genus

Rhododendron

Cultivar

Lady Lasa® 'BOUTI0150’

Family

Ericaceae

Other common names

Rhododendron, Rosebay, BOUTI0150

Origin

Cultivar or hybrid

Product reference1008391

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Planting and care

Plant the Rhododendron 'Lady Lasa' in a partially shaded to shaded position, protected from cold and drying winds, in a cool, humus-bearing, light soil with an acidic tendency (pH between 4.5 and 6). Like all plants of heathland, it does not tolerate limestone soils, drought, heatwaves, or heavy soils saturated with water in winter.

Dig a hole three times larger than the pot. Soak the root ball in non-limestone water for fifteen minutes and plant the bush at the collar level in a mixture of one-quarter turf, leaf compost, gravel or pumice, and loam. Water thoroughly and keep the soil moist in the summer. Rhododendrons have a shallow root system, so they are sensitive to long periods of drought. Therefore, it is advisable to enrich the soil with humus and water abundantly during dry periods. In addition, this root system is not very strong, so it is essential to lighten heavy soils with draining materials (gravel, pumice, clay pellets) when planting. Apply a mulch of shredded pine bark around the base of the bush every spring to maintain soil moisture.

Maintenance consists of removing faded flowers in summer and cleaning dead branches. Azaleas and Rhododendrons can sometimes be attacked by weevils that eat the edges of leaves and rootlets, as well as the famous "rhododendron beetle", which rarely causes severe damage. Effective organic solutions are now available against weevils. Yellowing of leaves (chlorosis) in Rhododendrons indicates poor assimilation of iron in the soil and can lead to premature death of the plant. While limestone (in the soil or irrigation water) is often the cause, poorly drained soil or deeply planted root balls can also explain the phenomenon.

Planting period

Best planting time March, October
Recommended planting time March to May, October to November

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Border, Edge of border, Free-standing, Container
Hardiness Hardy down to -18°C (USDA zone 7a) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Partial shade, Shade
Soil pH Acidic
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, well-drained

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Good
Overwinter Can be left in the ground

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