Mature size & growth rate

How big does Ugni (Ugni molinae) get?

Also called Chilean guava, Ugni, Murta.

More about ugni

About Ugni

Ugni molinae · also called Chilean guava, Ugni · tropical

Ugni, the Chilean guava, is a compact evergreen shrub bearing small aromatic red berries with a strawberry-like flavour. Hardier than most subtropical fruit, it tolerates light frost and suits sheltered gardens or pots. It likes full sun to part shade, moist but well-drained acidic soil and shelter from cold winds, and forms a neat, slow-growing bush ideal for hedging.

Mature size: 1-2 m tall and wide; can be kept smaller by clipping and is well suited to large containers.

Watch for — Frost damage to young growth: Hardy to roughly -5°C but tender new shoots can be nipped by late frost; shelter from cold winds and protect young plants.

Indoor size vs how big it gets in the wild

Ugni stays fairly low but widens over time — it spreads into a bigger clump by offsets, runners or rhizomes rather than shooting upward. Indoors and in a pot, expect 1-2 m tall and wide. In the ground with no restriction it is a completely different plant — can be kept smaller by clipping and is well suited to large containers. — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

Size here is about width, not height: the plant builds an ever-wider clump or sends out plantlets and runners while staying relatively short.

Growth rate and years to mature

Ugni is a slow grower. Realistically, expect many years — it gains very little each season, so it can hold the same shelf-sized footprint for 5-10+ years. Its feeding profile backs this up: feed in spring and early summer with a balanced or ericaceous slow-release fertiliser; a fruit feed or seaweed tonic supports berry set. it is not a heavy feeder, so avoid high-nitrogen products that promote leaf at the expense of fruit. stop feeding by late summer.

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

How to keep ugni smaller

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

Divide the clump every year or two — splitting ugni is the main way to control its spread and refresh it.
Remove runners, plantlets or offsets as they appear if you want it to stay a single tight clump.
Keep it slightly pot-bound; a snug pot naturally limits how wide the clump can get.

The keep-it-smaller method, step by step

Lift the whole plant. Slide ugni out of its pot in spring when the clump has filled it.
Split the clump. Tease or cut the rootball into two or more sections, each with healthy roots and growth.
Repot one division. Put a single division back in the original pot to reset it to a smaller size; pot or give away the rest.
Remove offsets as they form. Through the year, detach new runners or pups to stop it spreading again.

How to grow ugni bigger or faster

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

Give it a wider pot and let the clump fill it — width is exactly how this plant gets bigger.
Good light plus regular feeding maximises offset and runner production.
Leave plantlets and offsets attached and feed through the growing season for the fastest spread.

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

When ugni outgrows the room (or the pot)

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

The clump bulging over the pot rim or splitting the pot — the cue to divide, not to find a bigger room.
A dense centre that goes bare or tired while the edges keep spreading.
Runners or offsets escaping across the shelf or into neighbouring pots.

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

Ugni size — frequently asked questions

How big does ugni get?

Ugni reaches 1-2 m tall and wide when grown indoors, and far larger where it grows unrestricted (can be kept smaller by clipping and is well suited to large containers.). Size here is about width, not height: the plant builds an ever-wider clump or sends out plantlets and runners while staying relatively short.

Is ugni slow or fast growing?

Ugni is a slow grower. Expect many years — it gains very little each season, so it can hold the same shelf-sized footprint for 5-10+ years. Ugni stays fairly low but widens over time — it spreads into a bigger clump by offsets, runners or rhizomes rather than shooting upward.

How long does ugni take to reach full size?

Roughly many years — it gains very little each season, so it can hold the same shelf-sized footprint for 5-10+ years. Light, pot size and feeding move that timeline more than anything else.

How do I keep ugni smaller?

Divide the clump every year or two — splitting ugni is the main way to control its spread and refresh it. Remove runners, plantlets or offsets as they appear if you want it to stay a single tight clump. Keep it slightly pot-bound; a snug pot naturally limits how wide the clump can get.

How can I make ugni grow bigger or faster?

Give it a wider pot and let the clump fill it — width is exactly how this plant gets bigger. Good light plus regular feeding maximises offset and runner production. Leave plantlets and offsets attached and feed through the growing season for the fastest spread.