The ancient art of bonsai has long been revered for its ability to draw inner peace, centre the mind, and cultivate a deep connection with the natural world. What’s more, if you’re keeping an indoor bonsai tree, science tells us they also help to purify the air we breathe in addition to serving as a stunning ornamental centerpiece for the home or office.
Here I’ll share a few essential tips and considerations if you’re looking to grow and nurture a bonsai in your home. What’s great is bonsai trees aren’t as arduous as you might think and with a few well followed guidelines you too can enjoy the great benefits of bonsai.
Picking a Suitable Indoor Bonsai Tree
It’s important to note that only tropical or subtropical trees should be considered for indoor bonsai. All temperate trees require a period of dormancy during the winter season to complete their annual growth cycles.
Great choices for indoor bonsai (particularly if you’re new to bonsai life) include the Carmona (Fukien Tea Tree), Zelkova (or Japanese Elm), Ligustrum (Privet), Ficus (Retusa and Ginseng), and the Sageretia (Chinese sweet plum).
Where to Place Your New Bonsai Tree
Much like caring for a houseplant, a key factor is going to be the light conditions you’re able to offer the bonsai tree throughout the day.
As a general rule, aim to keep your bonsai in a position where it mainly receives indirect light for the majority of the day (short periods of bright direct light are fine).
Definitely avoid any south-facing window ledges, particularly during summer months as this may cause your bonsai tree to overheat. Similarly, avoid close proximity to radiators or free standing heaters during the winter.
Watering Your Bonsai Tree
Ensuring your bonsai is regularly watered is absolutely essential. Your exact living environment, relative humidity, and the type of tree will play a factor but you should aim to monitor soil moisture levels daily initially. A few key pointers:
- A bonsai should never be allowed to dry completely. Check the relative moisture level approximately 1cm under the soil’s surface (your finger is fine or you could also use a soil moisture probe as well). If dry, your tree is ready for it’s next watering.
- When watering, aim to cover the entire soil surface so the roots have the best chance of receiving a good soaking.
- A good technique is to water the tree from above using a watering can with a fine nozzle to avoid disturbing the soil on the surface.
- I’d recommend investing in some form of tray to catch the drained water as it flows through the soil. This will also help to create a nice humid atmosphere around the tree in-between watering cycles.
When to Feed Your Bonsai Tree
Bonsai trees require a little help with feeding as the natural roots aren’t able to dig deep into the ground to draw nutrients as a regular tree would do in the wild.
It’s really important to use the correct type of bonsai fertilizer with a high phosphate level. Follow the instructions detailed on the package but generally the tree should receive a feed every 1 to 2 weeks from spring through to the end of summer and monthly from late autumn through winter.
Pruning Your Bonsai Tree
The cornerstone of the art of bonsai is maintaining a regular pruning and trimming schedule to preserve their overall beauty and aesthetics.
The trick is to keep an eye on new growth (particularly during spring to summer months) and aim to pinch back to the overall shape you’re looking to maintain. These will typically appear as growth from the tree’s main branches and trunk. Once they reach around 3cm it’s a good time to cut back with sharp scissors as neatly to it’s parent branch as possible.
Don’t be too over-vigorous as a little growth is important for the tree’s overall health and wellbeing.
When to Repot Your Bonsai Tree
Bonsai trees will typically outgrow their pots every 1 to 2 years. The best time to check the root structure and consider re-potting is early spring. If the roots have completely filled the current pot it’s a good time to consider stepping up to the next container size.
When repotting, it’s important to use a suitable bonsai soil mix. These will have the correct balance of peat and perlite with some added feed to ensure your tree gets all the nutrients it needs.
Nurturing a bonsai tree at home is a really rewarding pastime. By following a few simple steps each week you’ll quickly learn to understand your own tree’s unique needs and preferences. Before you know it you’ll be well on your way to becoming a master in the art of bonsai. Enjoy!
I’ve long been fascinated with the world of flowers and floral design. Today, I’m a lead writer for Petal Republic – a site dedicated to uncovering exceptional floristry around the world and showcasing the best flowers and plants for every occasion and living environment.
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