Growli vs Planta — the honest comparison.

Yes — Growli and Planta overlap most for indoor-only plant owners, with two key differences. Planta is the prettier indoor scheduler with a built-in light meter; Growli is the conversational AI with multi-turn dialog, daily morning briefings, frost alerts, and native UK localisation. If your gardening extends outdoors or you want a weather-tied daily plan, Growli is the broader fit. If your collection is indoor-only and design is the deciding factor, Planta is hard to beat.

Planta is around $35.99 USD per year on annual billing, with monthly ($7.99) and quarterly ($17.99) plans available. The free tier covers basic watering reminders and plant logging, but most useful features — plant identification, Dr Planta diagnosis, light meter — are premium-gated. Growli sits slightly below at roughly $30 USD / £24 GBP per year for the Plus tier, with a more generous free core tier.

Not really. Planta sends task reminders when watering, fertilising, or misting is due, which is helpful but reactive. There is no consolidated morning briefing that ties today's weather to today's tasks across your whole garden. Growli's daily morning briefing is built around that proactive layer — a 3-minute summary of what to do today, including any frost or heat warnings tied to your location.

Planta is built indoor-houseplant-first. Its strongest features (light meter, watering scheduler, calm UI) all assume an indoor collection. Outdoor edible and ornamental gardening is supported but generic. Growli covers indoor and outdoor gardens at parity — frost alerts, planting calendars by USDA zone or RHS rating, and outdoor pest and disease guidance all sit in the same app as houseplant care.

Planta installs and works in the UK, but its climate guidance is generic — no native RHS hardiness ratings, no UK Met Office integration, no calibration to British growing seasons. UK indoor-only users get most of the value because the indoor scheduler does not depend on local climate. UK outdoor gardeners are better served by Growli's native RHS H1a–H7 ratings.

Planta tested at 95% identification accuracy on common indoor species in 2026 third-party reviews, with a 25,000-species catalogue. Growli's identification is strong on common houseplants and outdoor garden species and improves monthly, but Planta has a deeper library at the long tail of obscure indoor cultivars. The Growli wedge is what happens after identification — the conversational diagnosis, the daily briefing, and the frost-alert layer Planta lacks.

Yes — Planta's "Dr Planta" feature runs a fixed-flow diagnosis from a photo plus a short questionnaire and returns a likely cause. It works for unambiguous cases but cannot ask follow-up questions when the answers do not narrow the cause. Growli's diagnosis is multi-turn — it asks about soil moisture, watering history, and recent changes, then ranks causes by your specific answers, which handles the overlapping symptoms (yellow leaves mean five different things) Dr Planta cannot reliably separate.