Bonsai tree care has a reputation for being difficult. It isn’t — but it does require consistency and attention. A bonsai is simply a tree grown in a shallow pot, shaped over time to reflect the beauty of a full-grown tree in miniature. Get the basics right and it will reward you for years, possibly decades.
This guide covers everything a beginner needs to know: choosing a tree, watering, feeding, pruning, repotting, and what to do when things go wrong.
Choosing Your First Bonsai Tree
The most important decision is whether you want an indoor or outdoor bonsai — and the answer depends entirely on the species, not personal preference. Most trees are outdoor trees. True indoor bonsai are tropical or subtropical species that cannot survive frost.
The most forgiving species for beginners are:
Ficus — the most popular indoor bonsai tree. Tolerates low light, inconsistent watering, and central heating better than any other species. A good starting point if you want a tree for inside the house.
Chinese Elm — elegant, fine-branched, and semi-evergreen. Can be kept indoors in a bright spot but thrives better outside in summer. One of the most beautiful beginner trees.
Juniper — an outdoor tree that should never be kept inside. Hardy, fast-growing, and very responsive to pruning and wiring. A classic first bonsai.
Japanese Maple — spectacular autumn colour, outdoor only. Slower to develop but deeply rewarding. Better suited to someone who has kept a simpler tree first.
Jade Plant — not a true bonsai species but widely sold as one. Succulent, easy to water, tolerates neglect. A good introduction to bonsai aesthetics without the demands.
Indoor Bonsai Trees
If you want a bonsai for inside the house, choose a species that genuinely thrives indoors rather than simply tolerating it. Ficus, Carmona (Fukien Tea), and Crassula (Jade) are the most reliable indoor species in the UK climate.
Avoid placing any indoor bonsai in a draughty spot, near a radiator, or in a room with no natural light. A bright windowsill away from direct afternoon sun is ideal. Most indoor bonsai also benefit from occasional misting to compensate for the dry air of centrally heated homes.
How to Water a Bonsai Tree
Watering is the single most important aspect of bonsai care — and the most common cause of death in both directions. Overwatering causes root rot; underwatering causes the tree to dry out and die within days.
The correct approach is to check the soil daily and water thoroughly when the top centimetre of soil begins to dry out. Never water on a fixed schedule — the frequency changes with the seasons, the size of the pot, the species, and where the tree is placed. In summer a bonsai may need watering every day; in winter once a week may be enough.
Water until it runs freely from the drainage holes, then stop. This ensures the entire root system receives moisture rather than just the surface.
Nobody explains bonsai care better than Peter Chan of Herons Bonsai in Surrey — Britain’s premier bonsai nursery and holder of 21 Chelsea Flower Show gold medals. In this video Peter covers watering and feeding with his characteristic mix of expertise and gentle humour.
How to Feed a Bonsai Tree
Bonsai growing in small pots exhaust the available nutrients quickly and need regular feeding throughout the growing season. Use a balanced bonsai fertiliser — one formulated for bonsai rather than general houseplants — every four weeks from early spring through to mid-autumn.
In winter, reduce feeding to once every eight weeks or stop entirely for deciduous trees in full dormancy. Over-feeding in winter encourages weak, leggy growth that weakens the tree’s structure.
Liquid fertilisers are the most convenient for most beginners. Slow-release pellets placed on the soil surface are also effective and lower maintenance.
How to Prune a Bonsai Tree
Pruning keeps your bonsai in its miniature form and encourages the dense, fine branching that gives a mature bonsai its character. There are two types of pruning — maintenance pruning and structural pruning.
Maintenance pruning is done throughout the growing season. Pinch or cut back new shoots to the first two leaves once six to eight leaves have developed. This encourages back-budding and keeps the silhouette tight.
Structural pruning — removing larger branches to reshape the tree — is best done in late winter or early spring before growth begins, when the structure of the tree is clearly visible. Use sharp, clean concave cutters for larger branches; the concave wound heals more cleanly than a flat cut.
Always remove dead, crossing, or downward-growing branches first. Step back regularly and assess the tree’s shape from a distance.
How to Repot a Bonsai Tree
Repotting prevents a bonsai from becoming root-bound and refreshes the soil’s nutrients. It does not mean moving the tree to a larger pot — bonsai are repotted into the same or a similarly sized pot with fresh soil.
Young, fast-growing trees need repotting every one to two years. Older, established trees can go three to five years between repottings. The right time to repot is early spring, just as the buds begin to swell but before new growth fully opens.
Lift the tree from its pot, rake out the roots gently, and trim back around a third of the root mass with clean scissors. Repot into fresh bonsai soil — a free-draining mix of akadama, pumice, and grit rather than standard compost. Water thoroughly and keep the tree in a sheltered spot for a few weeks while it re-establishes.
Bonsai Pots
The pot is as important as the tree. In bonsai, the relationship between tree and pot — the proportion, the colour, the texture — is part of the art form. A well-chosen pot elevates a good tree; a poor choice undermines it.
Handmade ceramic pots are the traditional choice, and nothing else quite matches them for quality or character. For UK-made bonsai pots, StevaCeramics on Etsy is outstanding — a specialist studio with over 2,500 sales and a perfect 5.0 rating, offering mame pots, shohin pots and larger vessels in a range of earthy glazes that complement the natural aesthetic of bonsai beautifully.
Handmade Bonsai Pots: StevaCeramics
Every StevaCeramics pot is a one-of-a-kind piece — hand-thrown and glazed in the UK, with 2.5k sales and a perfect 5.0 rating across 913 reviews. Each pot is made to complement the living art of bonsai rather than compete with it.
General guidance on pot selection:
Oval and rectangular pots suit most upright trees. Round pots work well with cascading or informal styles. The pot should be approximately two thirds the height of the tree, or two thirds the width of the canopy for wider, flatter trees. Unglazed or subtly glazed pots in earth tones suit most species; brighter glazes work for flowering trees.
Common Problems and How to Fix Them
Why is my bonsai losing leaves?
Leaf drop in an indoor bonsai is usually caused by a sudden change in environment — moving the tree, a draught, or a drop in temperature. Check the position and watering. If the tree is otherwise healthy, new leaves will follow. In an outdoor deciduous tree, autumn leaf drop is entirely normal.
How do I revive a bonsai tree?
If the soil is bone dry and the leaves have shrivelled, submerge the entire pot in a basin of water for ten minutes to fully rehydrate the root system. Then place the tree somewhere cool and shaded and assess new growth over the following weeks. If some branches are still flexible and green under the bark when scratched, the tree is alive.
Are bonsai trees toxic to cats?
Some species are and some are not. Jade plant (Crassula) is toxic to cats and dogs. Ficus can cause skin irritation. Juniper is mildly toxic. If you have cats, choose a species carefully — Chinese Elm is considered non-toxic and is one of the safest options for a pet-friendly household.
Are bonsai trees hard to care for?
Less so than their reputation suggests. The most common mistake is overwatering or underwatering — both caused by watering on a fixed schedule rather than checking the soil. Beyond watering, a bonsai needs feeding, occasional pruning, and repotting every few years. None of it is technically difficult; it simply requires regular attention.
Lets look at a Bonsai in an Indoor Space
Incorporating the bonsai into this space not only elevates the visual appeal but also significantly enhances the room’s aesthetic value, making it more dynamic and inviting.
Bonsai Tree FAQs
What is a bonsai tree?
A bonsai is a tree grown in a shallow pot and shaped over time to reflect the form of a full-grown tree in miniature. The word combines the Japanese characters for tray (bon) and planting (sai). The practice originated in China and was refined into the art form we recognise today in Japan, where it became deeply connected to Zen Buddhist philosophy.
How often should you water a bonsai tree?
Check daily and water when the top centimetre of soil begins to dry. In summer this may mean watering every day; in winter much less frequently. Never water on a fixed schedule — the frequency changes with the seasons, the species, and where the tree is placed.
How do I revive a bonsai tree?
If the soil is bone dry and the leaves have shrivelled, submerge the entire pot in a basin of water for ten minutes to fully rehydrate the root system. Place the tree somewhere cool and shaded and monitor over the following weeks. Scratch the bark on a branch lightly — if the tissue underneath is green and the branch is still flexible, the tree is alive.
How long do bonsai trees live?
With proper care, many decades — some of the oldest bonsai in existence are several hundred years old. Even a beginner’s first tree, properly cared for, can outlive its owner and be passed between generations.
How long does a bonsai tree take to grow?
Meaningful development takes years rather than months. A tree grown from seed may take a decade to begin looking like a bonsai. Most beginners start with nursery stock or pre-trained material, which shortens this considerably and allows you to focus on refining the tree’s shape rather than waiting for basic structure to develop.
What does a bonsai tree represent?
In Japanese culture, bonsai represents harmony, patience, and the relationship between humanity and nature. Each tree is considered a living artwork — shaped by human hands but ultimately subject to the rhythms of growth and change. The practice is closely associated with wabi-sabi, the philosophy of finding beauty in imperfection and impermanence.
Can any tree be a bonsai?
In theory yes — almost any woody plant can be trained as a bonsai. In practice, species with small leaves, interesting bark, and good branch structure work best. Maples, elms, junipers, pines, and ficus are the most widely used, each offering their own character and seasonal interest.
Further Reading
Creating a Japanese Zen Garden in the UK
Bring the meditative qualities of Japanese garden design to your own outdoor space — from raked gravel and moss to stone lanterns and water features.
Read moreJapanese Garden Planting Ideas for the UK
A comprehensive guide to Japanese-inspired planting that thrives in the UK climate — from maples and bamboo to cherry blossom and wisteria.
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