Mature size & growth rate

How big does Turnip 'Tokyo Cross' (Brassica rapa var. rapa 'Tokyo Cross') get?

Also called Tokyo Cross turnip, Japanese turnip, hakurei-type turnip.

More about turnip 'tokyo cross'

About Turnip 'Tokyo Cross'

Brassica rapa var. rapa 'Tokyo Cross' · also called Tokyo Cross turnip, Japanese turnip · edible

'Tokyo Cross' is an F1 Japanese turnip producing uniform, smooth white globes very fast, often in just 35-40 days. Mild, sweet and tender, it can be eaten raw and rarely turns woody if harvested young. Bolt-resistant and reliable, it suits successional sowing through the season. Sow direct in full sun in cool conditions.

Mature size: Roots 5-8 cm across; foliage 25-35 cm tall.

Watch for — Flea beetle: Peppers young leaves with small holes and slows the fast early growth this F1 depends on; cover seedlings with fine mesh and keep them well watered.

Indoor size vs how big it gets in the wild

Turnip 'Tokyo Cross' reaches its full size within one growing season — there is no "long-term" size, just how big it gets before you harvest or it dies back. Indoors and in a pot, expect roots 5-8 cm across. In the ground with no restriction it is a completely different plant — foliage 25-35 cm tall. — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

It sizes up fast and once, racing from seedling to full size in a single season; after cropping it is finished, so size is a within-season question.

Growth rate and years to mature

Turnip 'Tokyo Cross' is a fast grower. Realistically, expect a single growing season — it reaches full size in one year, then is done. Its feeding profile backs this up: moderate feeder needing fertile soil for its fast growth. dig in compost before sowing; a balanced feed early keeps growth quick. avoid heavy late nitrogen, which softens roots and invites disease.

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

How to keep turnip 'tokyo cross' smaller

You are not stuck with the maximum size. For turnip 'tokyo cross' specifically, these are the levers, in order of impact:

Choose a compact or dwarf variety of turnip 'tokyo cross' from the start — that is the most reliable size control for an annual.
Grow it in a smaller container to naturally limit how large it gets.
For some crops, pinching or pruning the growing tips keeps the plant shorter and bushier.
Sow a little later or space plants closer if you specifically want smaller individual plants.

How to grow turnip 'tokyo cross' bigger or faster

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

Full sun, warm soil and steady water are what drive a crop to full size fastest.
Sow at the right time for your zone so it gets the whole season to size up.
Feed appropriately for the crop and never let it check (stall) from drought or cold.

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

When turnip 'tokyo cross' outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for turnip 'tokyo cross':

It sprawls beyond its bed or container before harvest — usually a spacing or support issue.
It flops or needs staking once it hits full height.
Once it has fruited or bolted, it is at its final size for good — the next plant is a new sowing.

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

Turnip 'Tokyo Cross' size — frequently asked questions

How big does turnip 'tokyo cross' get?

Turnip 'Tokyo Cross' reaches roots 5-8 cm across when grown indoors, and far larger where it grows unrestricted (foliage 25-35 cm tall.). It sizes up fast and once, racing from seedling to full size in a single season; after cropping it is finished, so size is a within-season question.

Is turnip 'tokyo cross' slow or fast growing?

Turnip 'Tokyo Cross' is a fast grower. Expect a single growing season — it reaches full size in one year, then is done. Turnip 'Tokyo Cross' reaches its full size within one growing season — there is no "long-term" size, just how big it gets before you harvest or it dies back.

How long does turnip 'tokyo cross' take to reach full size?

Roughly a single growing season — it reaches full size in one year, then is done. Light, pot size and feeding move that timeline more than anything else.

How do I keep turnip 'tokyo cross' smaller?

Choose a compact or dwarf variety of turnip 'tokyo cross' from the start — that is the most reliable size control for an annual. Grow it in a smaller container to naturally limit how large it gets. For some crops, pinching or pruning the growing tips keeps the plant shorter and bushier. Sow a little later or space plants closer if you specifically want smaller individual plants.

How can I make turnip 'tokyo cross' grow bigger or faster?

Full sun, warm soil and steady water are what drive a crop to full size fastest. Sow at the right time for your zone so it gets the whole season to size up. Feed appropriately for the crop and never let it check (stall) from drought or cold.