Trees in flower in Spring

Trees in flower in Spring

Two trees come into flower at the same time  in early spring. The Common Pear has white flowers and the Norway Maple has green flowers. Viewed from a distance one tree looks white and the other green.

Common Pear in flower

The Common Pear, also known as the Wild Pear, is probably of West Asian origin. It has been planted in parks, orchards and gardens and is occasionally found in hedgerows. There are hundreds of varieties of Pear, cultivated for their edible fruit. The leaves are toothed and glossy and variable in shape. The bark is deeply cracked into squares. The white flowers come out before the leaves in March/April. The fruit ripens by September.

Common Pear flower

The flowers come out in March/April at the same time as the leaves, usually two weeks before the Apple. Pear flowers have deep red anthers but Crab Apple flowers have yellow anthers.

Norway Maple in flower

The Norway Maple is native to Europe, from Scandinavia to the Caucasus. It was introduced to Britain in 1683 and is now commonly found in gardens, streets and parks. It is one of the first trees to look green in spring, when its green flowers open before the leaves. It has the 5-lobed leaf typical of the Maple family but differs from the Field Maple and Sycamore in that its lobes and teeth have finely pointed tips. It has a winged fruit like all maples but the wings hang down at an angle whereas on the Field Maple they are flat.

Norway Maple flowers

The tree is one of the first trees to go green in spring but not with new leaves. Green flowers appear before the leaves and give the tree a green appearance in March or early April. The flower clusters burst out of the bud before the leaves.

Blackthorn

Blackthorn

Blackthorn Prunus spinosa                                                                                                                               

The Blackthorn is a small thorny tree or shrub, usually found in farm hedgerows, but often planted in urban areas. The fruit is called a ‘sloe’ and can be used to make wines and jam. The tree is often confused with the Cherry Plum (also called the Myrobalan Plum), which is described elsewhere in a post. The confusion arises because both have similar looking white flowers in spring. The difference is that the Cherry Plum comes into flower up to 4 weeks earlier than the Blackthorn. The Black and Brown Hairstreak butterflies lay their eggs on Blackthorn thorns in summer. The tiny eggs can be seen throughout the winter as white dots in the fork between the thorn and shoot. The eggs hatch out in spring. The Blackthorn flowers are formed before the leaves from March. The Blackthorn flower is smaller than that of the Cherry Plum and has a shorter stem and so seems to cling to the shoot. The leaves are small and toothed. The thorns are easy to see amongst the leaves.   The fruit was photographed in August.

 

Magnolias

Magnolias

Magnolia trees and shrubs are members of a very large genus containing between 120 and 230 species depending on the classification system used. The genus is named after the French botanist Pierre Magnol. It is an ancient genus with ‘primitive’ flowers adapted for pollination by beetles. The petals, for example, are known as tepals because the sepals and petals are indistinguishable. This is a feature common to plants that appeared early on in the evolution of Flowering Plants. Magnolias are important horticulturally. They are now sold worldwide and many new varieties have been developed. They are grown for their beautiful flowers and their striking foliage. Two common Magnolias – the Saucer Magnolia and Star Magnolia flower in Spring and the Southern Evergreen Magnolia flowers from midsummer.

The Saucer Magnolia Magnolia x soulangiana, a deciduous shrub or small tree, is a hybrid between two Chinese species, Magnolia denudata (Yulan), which has white flowers and Magnolia liliflora, which has purple and white flowers. It was initially bred in 1820 in France by a retired cavalry officer Etienne Soulange-Bodin and was introduced to Britain in 1827. It is now the most popular and well-known form of Magnolia, widely planted in parks and gardens. It flowers in early spring, then through the summer.

The Star Magnolia Magnolia stellata is a shrub or small tree very closely related to the Magnolia Kobushi. It is native to Japan and was introduced to Britain in 1862. It has star-shaped flowers with 12 or more strap-like tepals. It is a popular magnolia for small gardens, rarely exceeding a height of 3m.

 

The Southern Evergreen Magnolia Magnolia grandiflora, also known as the Southern Magnolia or Bull Bay, is a large evergreen tree native to Southeastern USA. It was introduced to Britain in 1734. It is now common in warmer parts of Britain, where it was originally grown against south-facing walls. It has large, dark green leaves and beautiful white flowers.