Choosing your first bonsai: indoors or outdoors?

Bonsai is a way of growing

Bonsai is the art of growing dwarf trees and shrubs, raised from seedlings or rooted cuttings, through careful training, pruning, and growing in a restricted container; the word means “tray planting.” It is not a particular species: a bonsai keeps the light, temperature, and, where relevant, winter dormancy needs of its species. That is why every Verdepedia bonsai guide links to the tree’s botanical profile.

The small pot, on the other hand, changes a lot. The little bit of soil dries out fast, roots freeze more easily than in the ground, and the tree depends entirely on your care. Choosing a first bonsai therefore means choosing a species suited to where it will live first, and to the time you can give it second.

Indoor or outdoor bonsai

It’s a stubborn misconception: most bonsai are not houseplants. Most trees and shrubs can be grown as outdoor bonsai, and they need to live outside, exposed to the four seasons, to temperature swings, and to relatively high humidity. Trees from temperate climates need winter dormancy to cope with the cold, low light, and scarce moisture of the cold season; at most, they need protection from hard frost and strong winds.

So-called “indoor” bonsai are tropical or subtropical species. They can’t take the cold and should come inside when temperatures drop below about 59 °F. Indoors, they need plenty of light, a steady temperature, and enough humidity.

Putting an outdoor tree inside, or vice versa, is the surest way to lose a bonsai. Even with good intentions: bringing a maple or juniper into the living room to “protect” it from winter weakens it, especially if the change is sudden.

Three questions before you choose

Where will the tree live? In front of a very bright window, on a balcony, in a yard? Indoors, light is the main limiting factor: only a spot right by a well-exposed window will do. To assess it, see How to judge the light in your home.
What is your climate like? For an outdoor bonsai, a species suited to your region will get through winter far more easily.
Will you be around to water? In summer, a small pot outdoors may need watering once a day, or even twice. If you travel often, choose a species that forgives lapses.

Six species for beginners

	Placement	Winter	Watering	Level
Ficus microcarpa	Very bright indoor spot; outside in summer above 59 °F	Warm, near a window	As soon as the surface dries	Beginner
Jade plant	Brightest window, direct sun	Frost-free, never below 41 °F	Infrequent but thorough, mix almost dry	Beginner
Dwarf schefflera	Indoors, bright filtered light	Never below 50 °F	As soon as the surface dries	Beginner
Chinese elm	Preferably outdoors; a very bright indoor spot works	Outdoors, or a cool frost-free room	As soon as the surface dries, often daily in summer	Beginner
Japanese garden juniper	Outdoors year-round, full sun	Outdoors, roots protected below 14 °F	Never completely dry	Beginner
Japanese maple	Outdoors, partial shade in strong heat	Outdoors, roots protected below 14 °F	Often daily in season	Intermediate

For an apartment with no outdoor space

Ficus microcarpa is the most common species for starting out indoors. It tolerates pruning and small mistakes and copes with fairly dry air thanks to its thick leaves, but it needs lots of light: keep it within 3.5 ft of a well-exposed window, away from heaters and cold air currents. Lack of light is the main reason it weakens.

The jade plant is a succulent: its leaves, trunk, and branches store water, so it forgives irregular watering. It can be pruned without special tools and reliably buds back after every cut. It needs the brightest window in the house, with several hours of direct sun, and a very fast-draining mix; too much water is far more dangerous to it than too little.

The dwarf schefflera is one of the easiest indoor bonsai: it gets by with modest light and dry air, though it grows much better, with smaller leaves, near a bright window behind a sheer curtain. Its soft wood doesn’t take well to wiring, so it is shaped mainly by pruning.

With a balcony or yard

The Japanese garden juniper (‘Nana’) is widely available, affordable, and tough, and it wires easily. But it must live outdoors year-round: indoors it lacks light and cannot go dormant. You can display it inside for a day or two, then it has to go back out. Never let its soil dry out completely.

The Japanese maple is stunning, with palmate leaves that shrink in a pot and beautiful fall color, but it is more demanding: watering is often daily in season, several times a day in hot weather for a small pot, it needs partial afternoon shade when it’s very hot, and protection from drying winds.

The Chinese elm bridges the two worlds. Often sold as an indoor bonsai, it grows much more vigorously outdoors, where it can stay year-round in a temperate climate. A common approach is to put it outside for the warm season and bring it into a cool but frost-free room for winter. Tough and fast-growing, it responds well to pruning.

Before you buy

Identify the exact species: ask the seller for the scientific name. That’s what lets you find the right care, and labels are sometimes wrong.
Choose a healthy tree that shows vigorous growth.
Check the pot: it should be undamaged and have a drainage hole.
Watch for forgotten wire: the bark grows around the wire and scars. Wire must come off before it bites into the branch.
Look at the soil: a compacted, soggy mix puts the roots at risk.
Think about winter from day one: where will the tree spend the cold season?

Garden centers and supermarkets often sell mass-produced ficus with S-curved trunks. Their quality varies, but they are good trees to learn on: plenty of experienced growers started this way. Specialist bonsai shops offer better-shaped trees at somewhat higher prices.

The first few months

Put the tree in its permanent spot, then avoid moving it without reason: a jade plant may drop leaves after being moved or after a sudden temperature change, and a ficus reacts the same way to hot or cold air currents. Water by observation: a small pot dries out fast, but constantly soggy soil rots the roots. The principle is the same as for a houseplant, as described in Water by observation, not by the calendar, with extra vigilance in summer. Rainwater limits mineral buildup in the soil.

During the growing season, a balanced fertilizer at a low dose, applied regularly, supports growth. Most bonsai are repotted about every two years to keep the roots from filling the pot; each species guide gives the right timing and soil mix.

The most common mistakes

Keeping a juniper or maple indoors: deprived of light and winter dormancy, they eventually decline.
Leaving a ficus outside in fall: it can’t take frost.
Watering on fixed days: needs change with the season, the heat, the pot size, and the soil.
Forgetting the wire: wire left on too long leaves lasting scars on the bark.
Placing an indoor bonsai far from the window: even tolerant species weaken in low light.

At a glance

Your situation	Recommended first bonsai
Bright apartment, no outdoor space	Ficus microcarpa, jade plant
Indoors with more modest light	Dwarf schefflera
Sunny balcony or yard	Japanese garden juniper, Chinese elm
Partly shaded yard, time to water	Japanese maple

To sum up: start from the place, not the tree. Choose a species suited to your home and climate, check its health when you buy it, then turn to its Verdepedia guide for what comes next: pruning, wiring, and repotting will come with time.