Ask someone “what grows on oak trees” and most people will say “acorns” but have you ever noticed the beautiful pink flowers growing on oak? There’s a hidden world of wonderful tree flowers that many of us walk right by without giving them a glance. In this blog I’ll introduce you to some of the best tree flowers to look out for in spring. You can find them yourself with a free download I’ve created Spring Trees: Flower Guide UK, which you can get your hands on just below.
By the way, if you love trees, but struggle to tell one species from another, then you could enroll in my FREE Tree Identification Course online. More details can be found at the end of the article.
Which Trees Have Flowers?
The simple answer to this is that all our native and common broadleaf trees have flowers. When you get to conifers (evergreens) things get a little more tricky so let’s set those aside for now.
Most of our trees show their flowers in spring but some, like the elder, wait until early summer. Knowing what order the flowers emerge in spring can be a good skill to help you identify which tree species you’re looking at. Male flowers will become laden with yellow pollen whilst the (usually) more colourful female flowers will eventually mature into the seed, fruit, nut or berry.
The majority of our trees have both their male and female flowers on the same branch, sometimes right next to each other, but others have separate male and female trees, relying on their being a member of the opposite sex in the near vicinity for pollination to occur. I wrote a whole article about which trees are male and female, if you want to know more just follow this link.
Trees like willow and poplar don’t have flowers as we usually know them, with petals, but rather they have catkins, which fill the early spring canopy with whites and yellows. As spring comes to a close the female catkins have gone to seed and you can have sunny May days with masses of fluffy willow and poplar seeds gently floating through the breeze. If you want to find out more about catkins, I’ve written a whole article about them. You can check that out here.
3 Tiny, But Beautiful Tree Flowers To Look Out For
They may be small but that doesn’t mean these tree flowers don’t pack a visual punch when you do spot them. Earlier in the season (late winter) we have the tiny flowers of the hazel (Corylus avellana) looking like red tentacled sea-anemones. They are one of the first signs that spring is on its way.
But there’s three more crimson beauties I want to draw your attention to. First we have the female flowers of our native oaks. The green male catkins are also found growing on the same branch. You will find these tiny pink flowers appearing with the young leaves in late April to early May. Look out for them as they won’t be there for long.
Hornbeam, often mistaken for beech (Fagus sylvatica), is another native which produces two very different male and female flowers, the males being catkins. The females resemble the flowers of hazel, with pink tendrils spread out to catch pollen. You will find these on the tree in April.
Lastly, the alder, a tree which favours wet ground and riverbanks. It has not only vividly purple buds and male catkins, but in early spring you might well spot the young female flowers before they turn green and begin their journey to maturing into cones. When young they resemble bright pink cotton buds, a real splash of colour in February and March. Keep your eyes peeled!
Know Your Tree Flowers
To someone starting out in tree identification, it can be easy to get confused between tree species which have similar flowers, especially when they’re the same colour. Just take a look at these below…
Here we have four different native trees, each with white flowers, with 5 petals each. So how can we easily tell between them? Well although this may seem confusing at first glance and each of these species could be found growing next door to one another, what we don’t have here is context. What I mean here is specifically the time of year we would find these flowers. The other thing we need to consider is other identifying signs away from the flowers themselves. Here’s my handy hints for telling these trees apart in spring:
Blackthorn (Prunus spinosa) – this is the first tree to come into flower en masse in our hedgerows. We see this in March when everything else still has closed buds. Also, look out for the wicked thorns on the twig and trunk.
Crab Apple (Malus sylvestris) – this is the largest of the four flowers shown here. Notice how the petals are really opened out. They resemble an apple core when it’s sliced crossways, looking like a 5 pointed star. These flowers are typically out in May. Also, you will probably find rotten apples on the ground below the tree, so look out for those.
Wild Cherry (Prunus avium) – these flowers can closely resemble the hawthorn, however the flowers of wild cherry emerge before the leaves in April whereas with hawthorn the flowers come out after the leaves. Also, you will not find any thorns on a wild cherry.
Hawthorn (Crataegus monogyna) – one of the key features for these flowers is their smell. The have a sickly-sweet (though I think it’s pleasant) aroma of almond or marzipan. You will find these flower in late-April to May. An old country name for this tree is the maythorn because it traditionally flowers at this time of the year. Remember, the tree has thorns, so look for those too.
Get Your FREE Spring Tree Flower Guide
I’ve created a handy guide you can use when you’re out and about looking at trees during spring. The guide features 18 native and common British trees which have flowers that you might already be familiar with and flowers that you’ve probably never noticed before. The trees are laid out in the order which they come into flower so you know not only what to look for but when to look for it.
I hope you find it useful on your journey to understanding the trees around us.
Discover more About Trees
It can be so interesting to really look in to the details of our native trees and notice the changes that they undergo throughout the four seasons. That’s just what I’ve created for my FREE introductory online course called Kickstart Your Tree ID Skills. Here you will find a whole host of resources to take you from clueless to confident on your way to really knowing your trees.
When you sign up to this free mini-course you’ll be identifying common trees with video tutorials and photo galleries at your fingertips. Start your journey to becoming a fully fledged Tree Expert today. The course includes Tree ID Cheat Sheets which you can download and take outdoors with you.
“I’ve been frustrated for so long trying to learn my trees myself and haven’t gotten far. This course answered everything and has seriously upped my game.” Dr. Patrick Alexander
Happy tree hunting folks.