Throughout the seasons, you will notice that your outdoor bonsai changes significantly. It is important to notice and understand these changes in order to best look after your bonsai.

Seasons – Spring, Summer, Autumn and Winter


New Growth: In spring, bonsai experience a burst of new growth, with fresh leaves and shoots appearing.

Repotting: Early spring is an ideal time for repotting, as it allows the roots to establish before the hot summer months.

Pruning: It’s essential to trim back new growth to maintain the desired shape and promote ramification.

Watering: Bonsai may need more frequent watering as the temperature rises, ensuring they don’t dry out during this active growth phase.


Vigorous Growth: The bonsai will continue growing actively during summer, necessitating regular pruning and maintenance.

Protection from Heat: Ensure the bonsai is kept in a shaded area or protected from direct sunlight to prevent leaf scorching.

Hydration: Consistent and thorough watering is crucial in hot weather to prevent dehydration.

Pest Management: Watch for pests like aphids and spider mites, which thrive in warm conditions.


Foliage Colour Changes: Some bonsai species exhibit stunning autumn foliage colours as the temperature cools.

Gradual Growth: The growth rate slows down as the weather cools, requiring less frequent pruning and maintenance.

Preparing for Winter: Fertilisation should be reduced, and the bonsai may need to be moved to a sheltered location as winter approaches.


Dormancy: Most outdoor bonsai enter a period of dormancy in winter, during which they need less water and no fertilisation.

Protection from Cold: In cold climates, it’s crucial to protect the bonsai from freezing temperatures with mulch or a cold frame.

Minimal Pruning: Avoid significant pruning during winter, as the tree’s energy is focused on root development and survival.

Throughout the year, it’s vital to monitor the bonsai’s health, provide appropriate care, and adjust maintenance routines based on the changing seasons. Proper attention and knowledge of seasonal requirements ensure the bonsai thrives and remains a stunning living work of art year-round.