
Bonsai autumn
The autumn shows colours when days get shorter and colder. For now its still a bit warm but slowly this changes. Before we can work on the deciduous when leaves drop, we can do our weekly bonsai work on another species.
Getting Scots pines, Pinus sylvestris, to back bud can be tricky. In this episode, we look at a method that’s a bit extreme but works on young single-flush pines in certain circumstances.
The basic styling of this young nursery material shows how much you can do with simple and relatively cheap ordinary nursery material creating the bones of a future bonsai.
Watch this episode here: BONSAI EPISODE ON PINE
Read on to know more about autumn colours.
Embracing Autumn Colors with Bonsai Trees
Autumn is a magical time of year, especially for bonsai enthusiasts. As the days grow shorter and the temperatures drop, bonsai trees undergo a stunning transformation, showcasing a vibrant palette of reds, oranges, and yellows. This seasonal change not only enhances the beauty of your bonsai collection but also offers a unique opportunity to appreciate the intricate details of these miniature trees.
The Science Behind Autumn Colors
The brilliant autumn colors in bonsai trees are a result of a natural process called senescence. As daylight decreases and temperatures cool, the production of chlorophyll (the pigment responsible for the green color in leaves) slows down and eventually stops. This allows other pigments, such as carotenoids and anthocyanins, to become more visible. Carotenoids produce yellow and orange hues, while anthocyanins add reds and purples to the mix.
Choosing the Right Bonsai for Autumn
To make the most of autumn’s beauty, select bonsai species known for their striking fall colors. Some popular choices include:
- Japanese Maple (Acer palmatum): Renowned for its vibrant red and orange leaves.
- Ginkgo (Ginkgo biloba): Offers stunning yellow foliage.
- Chinese Elm (Ulmus parvifolia): Displays a range of colors from yellow to deep red.
- Trident Maple (Acer buergerianum): Known for its brilliant orange and red leaves.
Also berries can be a beauty of the season like on the Firethorn below. Only one branch allowed to set berries to test the color.
Caring for Your Bonsai in Autumn
Proper care is essential to ensure your bonsai trees thrive during the autumn months. Here are some tips to keep your bonsai healthy and vibrant:
- Watering: As temperatures drop, reduce the frequency of watering. Ensure the soil remains moist but not waterlogged.
- Pruning: Remove any dead or yellowing leaves to encourage new growth and maintain the tree’s shape.
- Fertilizing: Use a balanced fertilizer to provide essential nutrients, but avoid high nitrogen fertilizers as they can promote unwanted growth.
- Protection: As frost approaches, protect your bonsai by moving them to a sheltered location or wrapping the pots in bubble wrap or burlap2.
Enhancing Autumn Colors
To enhance the autumn colors of your bonsai, consider the following practices:
- Leaf Cutting/Defoliation: Performing a mid-summer leaf cut can reduce chlorophyll levels, allowing autumn colors to appear more vividly.
- Cool Nights: Exposing your bonsai to cooler temperatures at night can speed up the onset of senescence, resulting in more intense colors1.
Autumn is a time to celebrate the natural beauty of bonsai trees. By choosing the right species and providing proper care, you can create a breathtaking display of autumn colors in your bonsai garden. Enjoy the season and the stunning transformation of your miniature trees!

