Mature size & growth rate

How big does Bignay (Antidesma bunius) get?

Also called Bignay, Chinese laurel, Currant tree.

More about bignay

About Bignay

Antidesma bunius · also called Bignay, Chinese laurel · tropical

Bignay is a tropical evergreen tree grown for clusters of small currant-like fruit that ripen from green through red to black, used in jams, wine and juice. It needs warmth, full sun and well-drained soil, and is frost-tender. Plants are typically dioecious, so a male is needed to pollinate fruiting females. Fast-growing and ornamental, with glossy foliage.

Mature size: 5-10 m tall in the tropics; readily kept to 2-3 m in a container with pruning.

Indoor size vs how big it gets in the wild

Bignay is a tree at heart. Indoors a pot and your ceiling keep it to 5-10 m tall in the tropics, but in the ground it is a different scale of plant entirely (readily kept to 2-3 m in a container with pruning.). Indoors and in a pot, expect 5-10 m tall in the tropics. In the ground with no restriction it is a completely different plant — readily kept to 2-3 m in a container with pruning. — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

It gains real height on a trunk or main stem, adding a tier of leaves a year and eventually reaching for the ceiling — this is a plant you grow up, not out.

Growth rate and years to mature

Bignay is a fast grower. Realistically, expect two to four years from a young plant to a room-filling specimen in good light. Its feeding profile backs this up: feed monthly through the growing season with a balanced fruit-tree fertiliser, increasing potassium during fruiting; young trees respond well to nitrogen for fast establishment. use a slow-release granular feed in spring as a base and taper off in autumn.

Want this turned into the right next pot at the right moment? The pot size calculator and the bignay repotting guide cover when and how much to size up — pot size is one of the biggest levers on how fast bignay grows.

How to keep bignay smaller

You are not stuck with the maximum size. For bignay specifically, these are the levers, in order of impact:

The decisive tool is the secateurs: bignay can be topped (cut the main growing tip) to cap its height and force a bushier, shorter shape.
Keeping it deliberately pot-bound in a snug container slows the whole plant and limits ultimate size.
Prune in spring so it heals fast; remove the tallest leader back to a node to reset the height.
Expect to top or hard-prune it every year or two — left alone it heads for the ceiling.

The keep-it-smaller method, step by step

Pick the new height. Decide how tall you want bignay and find a leaf node or branch point just below that.
Top the main stem. Cut the main growing tip cleanly just above that node in spring; this permanently caps the height and forces side branches.
Keep the pot snug. Avoid jumping to a much bigger pot — a slightly restricted rootball keeps the whole plant smaller.
Maintain the shape. Prune back the tallest new leaders each spring to hold it at the height you chose.

How to grow bignay bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for bignay the accelerators are:

It already wants the bright light it needs; warmth, a yearly pot-up and spring-summer feed are the accelerators.
Pot up a size every year or two while young; restricted roots are the main thing holding height back.
Feed regularly through the growing season and keep it warm — height comes from sustained good conditions.

Light is almost always the ceiling. The bignay light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When bignay outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for bignay:

The top leaves pressing against or bent by the ceiling — the classic "this is now too tall indoors" sign.
It has to be moved away from a light source it has literally outgrown.
Roots filling the largest pot you can reasonably keep indoors — at that point it is top-or-prune or move it outside (if hardy).

If it is the pot rather than the room, it is a repotting job, not a goodbye — see the bignay repotting guide. If you want more of this plant instead of a bigger one, the bignay propagation guide turns prunings into new plants.

Bignay size — frequently asked questions

How big does bignay get?

Bignay reaches 5-10 m tall in the tropics when grown indoors, and far larger where it grows unrestricted (readily kept to 2-3 m in a container with pruning.). It gains real height on a trunk or main stem, adding a tier of leaves a year and eventually reaching for the ceiling — this is a plant you grow up, not out.

Is bignay slow or fast growing?

Bignay is a fast grower. Expect two to four years from a young plant to a room-filling specimen in good light. Bignay is a tree at heart. Indoors a pot and your ceiling keep it to 5-10 m tall in the tropics, but in the ground it is a different scale of plant entirely (readily kept to 2-3 m in a container with pruning.).

How long does bignay take to reach full size?

Roughly two to four years from a young plant to a room-filling specimen in good light. Light, pot size and feeding move that timeline more than anything else.

How do I keep bignay smaller?

The decisive tool is the secateurs: bignay can be topped (cut the main growing tip) to cap its height and force a bushier, shorter shape. Keeping it deliberately pot-bound in a snug container slows the whole plant and limits ultimate size. Prune in spring so it heals fast; remove the tallest leader back to a node to reset the height. Expect to top or hard-prune it every year or two — left alone it heads for the ceiling.

How can I make bignay grow bigger or faster?

It already wants the bright light it needs; warmth, a yearly pot-up and spring-summer feed are the accelerators. Pot up a size every year or two while young; restricted roots are the main thing holding height back. Feed regularly through the growing season and keep it warm — height comes from sustained good conditions.