Mature size & growth rate

How big does Nasturtium 'Empress of India' (Tropaeolum majus 'Empress of India') get?

Also called Garden nasturtium, Indian cress.

More about nasturtium 'empress of india'

About Nasturtium 'Empress of India'

Tropaeolum majus 'Empress of India' · also called Garden nasturtium, Indian cress · edible

'Empress of India' is a compact, bushy nasturtium with deep blue-green leaves and vivid crimson-scarlet flowers. Both peppery leaves and flowers are edible, and it flowers best on poor soil in full sun. A fast, trouble-free hardy annual, it sows direct after frost, trails or mounds well in beds and pots, and self-seeds freely.

Mature size: About 30-40 cm tall and 30-45 cm wide.

Indoor size vs how big it gets in the wild

Nasturtium 'Empress of India' 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 about 30-40 cm tall and 30-45 cm wide.. A pot, your light levels and a little pruning are what set the final size in a home, far more than the plant's theoretical potential.

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

Nasturtium 'Empress of India' 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: do not feed for flowers. on very poor soil a single weak balanced feed is enough; nitrogen-rich fertiliser gives masses of leaves and very few flowers, the classic nasturtium mistake.

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

How to keep nasturtium 'empress of india' smaller

You are not stuck with the maximum size. For nasturtium 'empress of india' specifically, these are the levers, in order of impact:

Choose a compact or dwarf variety of nasturtium 'empress of india' 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 nasturtium 'empress of india' bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for nasturtium 'empress of india' 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 nasturtium 'empress of india' light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When nasturtium 'empress of india' outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for nasturtium 'empress of india':

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 nasturtium 'empress of india' repotting guide. If you want more of this plant instead of a bigger one, the nasturtium 'empress of india' propagation guide turns prunings into new plants.

Nasturtium 'Empress of India' size — frequently asked questions

How big does nasturtium 'empress of india' get?

Nasturtium 'Empress of India' reaches about 30-40 cm tall and 30-45 cm wide. when grown indoors. 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 nasturtium 'empress of india' slow or fast growing?

Nasturtium 'Empress of India' is a fast grower. Expect a single growing season — it reaches full size in one year, then is done. Nasturtium 'Empress of India' 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 nasturtium 'empress of india' 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 nasturtium 'empress of india' smaller?

Choose a compact or dwarf variety of nasturtium 'empress of india' 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 nasturtium 'empress of india' 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.