Mature size & growth rate

How big does La Ratte Fingerling Potato (Solanum tuberosum 'La Ratte') get?

Also called La Ratte potato, French fingerling potato, asparges potato.

More about la ratte fingerling potato

About La Ratte Fingerling Potato

Solanum tuberosum 'La Ratte' · also called La Ratte potato, French fingerling potato · edible

'La Ratte' is a classic French fingerling with small, knobbly, elongated tubers, yellow waxy flesh and a distinctive nutty, chestnut-like flavour. A chef's favourite for steaming, salads and warm sides, it holds shape when cooked. This maincrop variety is planted from seed tubers in spring and lifted in late summer once the haulm dies back.

Mature size: Foliage 50-70 cm (20-28 in) tall and wide; tubers small, finger-shaped, 5-10 cm long.

Indoor size vs how big it gets in the wild

La Ratte Fingerling Potato 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 foliage 50-70 cm (20-28 in) tall and wide. In the ground with no restriction it is a completely different plant — tubers small, finger-shaped, 5-10 cm long. — 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

La Ratte Fingerling Potato 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. add balanced fertiliser and compost at planting, then side-dress with potassium at hilling. avoid heavy nitrogen, which produces lush tops and fewer, poorly flavoured tubers.

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

How to keep la ratte fingerling potato smaller

You are not stuck with the maximum size. For la ratte fingerling potato specifically, these are the levers, in order of impact:

Choose a compact or dwarf variety of la ratte fingerling potato 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 la ratte fingerling potato bigger or faster

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

When la ratte fingerling potato outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for la ratte fingerling potato:

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 la ratte fingerling potato repotting guide. If you want more of this plant instead of a bigger one, the la ratte fingerling potato propagation guide turns prunings into new plants.

La Ratte Fingerling Potato size — frequently asked questions

How big does la ratte fingerling potato get?

La Ratte Fingerling Potato reaches foliage 50-70 cm (20-28 in) tall and wide when grown indoors, and far larger where it grows unrestricted (tubers small, finger-shaped, 5-10 cm long.). 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 la ratte fingerling potato slow or fast growing?

La Ratte Fingerling Potato is a fast grower. Expect a single growing season — it reaches full size in one year, then is done. La Ratte Fingerling Potato 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 la ratte fingerling potato 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 la ratte fingerling potato smaller?

Choose a compact or dwarf variety of la ratte fingerling potato 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 la ratte fingerling potato 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.