PictureThis vs Pl@ntNet UK 2026 — which wins here?

Most "best plant app" lists rank these two by feature count. That is the wrong axis for a British gardener. What matters here is which flora each app was trained on, and whether you need a name once or advice all season.

The short verdict

Pl@ntNet wins on British plants. It is a research project before it is a product. The database is community-contributed and expert-verified, it holds 1.47 billion images, and its European coverage is the deepest part of it. If you are identifying something growing in a hedgerow, a verge, or an established British garden, this is the one to reach for first.

PictureThis wins on breadth and polish. It is the app most people mean when they say "the plant app" — a large consumer catalogue, a fast interface, and care information attached to each result. In the UK App Store it holds 4.75 stars across more than 165,000 ratings, which is a genuine signal about the experience even if it says nothing about botanical accuracy.

Neither wins on what happens next. Both answer "what is this?" Neither answers "it is August, this is a north-facing Manchester flat, what do I do about the yellowing?"

Side-by-side

On pricing we are deliberately vague, and you should be suspicious of articles that are not. App Store subscription prices vary by storefront and change without notice, and we have no way to verify a UK figure that will still be right when you read this. Pl@ntNet is free — that we can state, because the project says so and there is no paid tier to change. For PictureThis, open its App Store listing and read the in-app purchase list. Any article quoting you an exact figure to the penny is copying another article.

Why the European flora point matters more than it sounds

Identification models are only as good as what they were trained on. Pl@ntNet grew out of French research institutions cataloguing European plants, and that is still where its data is densest — which maps closely onto what grows in British gardens, verges and woodland.

This shows up in practice on the plants that are hardest to tell apart: umbellifers, grasses, brambles, willows, the hawthorn-blackthorn confusion. A model with deep European data and expert verification behind it has simply seen more correctly-labelled British examples.

It cuts the other way for houseplants. A Monstera cultivar or an unusual Calathea is a consumer-catalogue problem, and that is PictureThis territory.

Where both fall short for a UK gardener

Neither knows your conditions. An identification is climate-blind. It cannot tell you that the plant you have just named is borderline in your postcode, or that it will need protection by October.

Neither reads a symptom in context. Photograph a yellowing leaf and you get the species, not the diagnosis. The cause — overwatering, a cold windowsill, spider mites, a nutrient gap — depends on the season, the room and what you did last month.

Neither speaks RHS. British hardiness runs on RHS ratings H1a to H7, not USDA zones. An app that reports a USDA zone is asking you to do a conversion in your head every time.

How to decide

• Identifying wild or garden plants in Britain → Pl@ntNet. Free, and the flora is the one it knows best.
• Identifying houseplants and unusual ornamentals → PictureThis. Bigger consumer catalogue.
• Want both without paying → Pl@ntNet plus a second free option. There is no need to subscribe just to name things.
• The name is not really the question → an identifier is the wrong tool. What you want is something that tracks the plant through the season.

That last case is what Growli is built for: identification, then a conversational thread that remembers your garden, works natively in RHS hardiness ratings, and warns you before a frost rather than after it. It is not a better identifier than Pl@ntNet on British flora, and we would rather say so than pretend otherwise.

Common mistakes

Subscribing to solve a problem a free app already solves. If you only need names, Pl@ntNet is free and strong on exactly the plants you are most likely to be pointing at in Britain.

Trusting one identification of a lookalike. For umbellifers especially — where the difference between species matters a great deal — confirm against a second source before acting on it.

Photographing the wrong thing. Both apps do better with a leaf, a flower and the whole plant than with a single close-up. Bark and leaf arrangement matter for trees.

Expecting an identifier to be a care app. They are different products. Naming a plant is one moment; keeping it alive is a season.

Related reading

• Best plant identifier app in the UK — the full field, not just these two
• PictureThis alternatives for UK gardeners — if you are trying to leave a subscription
• UK hardiness zones explained — RHS H1a to H7, and what they mean for your garden
• Best plant care app in the UK — for when naming the plant was not the problem

Reviewed and updated by the Growli editorial team. For questions about anything here, open Growli and ask — or email hello@getgrowli.app.