Crataegus x lavalleei 'CARRIEREI'

Crataegus x lavalleei
Crataegus x lavalleei 'CARRIEREI'
Lavallée's hawthorn, Carriérei's hawthorn
SIZE/TYPE small tree
 medium-sized tree
USUAL HEIGHT 3-5m
USUAL WIDTH 2-4m
LEAVES deciduous broadleaf
COLOUR OF LEAVES green
FLOWERS showy
COLOUR OF FLOWERS white
BLOOMING TIME May - June
LOCATION full to partial sun
SOIL TYPE any (acidic to alkaline)
SOIL MOISTURE REQUIREMENTS evenly moist but well-drained
USDA zone (lowest) 4   (down to -34°C)
WINTER PROTECTION  
FOR ZONE 5+6 Code of winter protection zone 5+6
FOR ZONE 7 Code of winter protection zone 7
BELONGS TO CATEGORIES Deciduous broadleaf
Trees
náhled fotonáhled fotonáhled foto
Lavallée’s hawthorn was found in Segrez Arboretum in France around 1870. It is believed to be a hybrid of c. pubescens (syn. C. Mexicana) and c. calpodendron (sometimes wrongly called c. crus-galli). The arboretum was founded by French botanists Pierre Alphonse Martin Lavallée (1836-1884) and it long belonged among the most prestigious arboretums as it contained the world’s largest collection of woody plants. Pierre himself, however, lived to only 49 years and after his death there was less and less scientific work done at Segrez. There were no new introductions or hybridization as if there was no one to pick up where he left off, and the collection of trees works more like a reflection of one’s fruitful lifelong work.

There is no mention in scientific books whether this hawthorn was hybridized intentionally or naturally which is quite common for this genus. Another mystery is a relationship between Pierre and another significant French botanist of his era, Élie-Abel Carrière (1818-1896), who in 1883, 13 years after Pierre’s finding, in a horticultural magazine Revue horticole introduced his own hawthorn of the same parentage. Did he know about Pierre and his hawthorn? Very probably not because he did not acknowledge his hybrid name and called his tree simply Crataegus carrièrei as a new species. Later the botanists corrected his error and renamed it, honouring Pierre’s tree as the original hybrid and Élie-Abel’s tree as a variety.

Carrièrei hawthorn differs from the original hybrid by a much more profuse blooming and therefore a magnificent display of fruit in autumn. It is a small to mid-sized tree whose leaves, though deciduous, remain on the tree much longer than on other deciduous trees. So no wonder that many gardeners mistakenly consider it evergreen when they see it covered withleaves and fruit yet in November.

Its lush leaves are broadly oval, 7-11 cm long, highly glossy, deep green in spring and summer, and turn deep maroon and orange for a short period just before they fall off. In late spring appear clusters (corymbs) of small, single, white flowers which are followed by large, glossy, orange and scarlet red, harmless berries in autumn thanks to which the tree looks almost like a holly.

Young plants grow rather fast into an upright, narrowly oval shape, slowing down with age and forming an almost rounded canopy which is extremely dense and very handsome. Pruning is usually not necessary but may be done in early spring or after flowering if you want the fruit display. Young twigs bear 4-4.5 cm long, sharp ,but not many thorns which disappear as the tree grows taller and older. It is a perfect tree for small gardens.

Lavallée’s hawthorn is not picky about soil type provided it is not wet. It has deep, non-aggressive roots which can cope with some road salt but will negatively respond to much of it. It is a popular street tree in urban areas with limited space but plenty of sunlight as it cannot grow in deep shade. It is hardy to some -34 °C (USDA zone 4) and is not prone so fire blight.

Last update 27-10-2021
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Crataegus x lavalleei height of stem 170-180 cm, girth 10-12 cm
STANDARD
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Crataegus x lavalleei height of stem 170-180 cm, girth 10-12 cm
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GLOSSARY
  • STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
  • DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
  • EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
  • STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
  • HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
  • SHRUB - a woody plant with branches growing bushy from the ground level.
  • HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
  • FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
  • GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
LARGE PLANTS over 150 cmspecimens, screening and hedging shrubs

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