Why do trees have blossom?

Fruiting trees rely on insects for pollination, so their flowers tend to be showy, colourful and sweet-smelling to signal that nectar is available. In contrast, wind-pollinated trees tend to have drooping or hanging clusters of flowers that are inconspicuous and green or brown in colour.

What is blossom?

Many trees flower in spring, but what makes it blossom?

Botanically speaking, blossom refers to the flowers of stone fruit trees in the family Rosaceae such as plums, cherries, apples and hawthorns. They usually flower abundantly over a relatively short period in spring and range in pastel colours from creamy whites to deeper pinks.

When to see blossom in the UK

Orchards, parks, gardens, woodlands and along streets and hedgerows are all good places to spot blossom.

Here at the Woodland Trust, we look after more than a thousand woods across the UK that are free for you to explore. Find a wood near you and enjoy a spring walk.

UK spring blossom calendar

Month

Species

Blossom colour

February

blackthorn

white

cherry plum

white

March

blackthorn

white

cherry plum

white

pear

white

plum

white

April

plum

white

crab apple

white or pink

bird cherry

white

wild cherry

white

hawthorn

white or pink

Midland hawthorn

white or pink

Plymouth pear

cream or pink

May

crab apple

white or pink

hawthorn

white or pink

Midland hawthorn

white or pink

Plymouth pear

cream or pink

Plymouth pear

cream or pink

sour cherry

white

rowan

creamy white

domestic apple

white or pink

June

rowan

creamy white

domestic apple

white or pink

This table gives a rough guide only. Flowering times depend on where you are in the UK - the further north often the later the date.

Month

February

March

April

May

June

Species

blackthorn

cherry plum

blackthorn

cherry plum

pear

plum

plum

crab apple

bird cherry

wild cherry

hawthorn

Midland hawthorn

Plymouth pear

crab apple

hawthorn

Midland hawthorn

Plymouth pear

Plymouth pear

sour cherry

rowan

domestic apple

rowan

domestic apple

Blossom colour

white

white

white

white

white

white

white

white or pink

white

white

white or pink

white or pink

cream or pink

white or pink

white or pink

white or pink

cream or pink

cream or pink

white

creamy white

white or pink

creamy white

white or pink

swipe to see more

This table gives a rough guide only. Flowering times depend on where you are in the UK - the further north often the later the date.

Flowering times

Climate change is causing UK plants to flower almost a month earlier on average, according to a study using our Nature's Calendar observations.

Is spring arriving earlier?

Although we love the arrival of spring, year-on-year early springs can have catastrophic consequences for wildlife. If flowers like blossom appear earlier, it leads to an ecological mismatch where hungry chicks hatch too late to feast on abundant insects that feed on the flowers.

The earlier that spring arrives, the harder it is for birds to adjust the timing of their breeding to match the peak in insects.

You can let is know what's happening to wildlife in your area. Anyone in the UK can submit a record to Nature’s Calendar and it helps scientists to understand how climate change is affecting ecosystems across the UK.

Is climate change causing plants to flower early?

Plants flowering too early could be disastrous for wildlife. Help us track the effects of climate change near you.

Take part in Nature's Calendar

British blossom trees - take a closer look

Explore our list of the UK's wild and naturalised blossom trees and learn how to identify them with our easy tips.

Discover more