Tend your bonsai
with calm precision.
Log care, photograph every tree as it grows, and see at a glance which trees need you.
Free to use · No card required
Care logging
Watering, liquid & solid fertiliser, rotation. Log per-tree or for the whole collection at once.
Photo history
Every photo you upload is kept forever. Watch your trees develop over the years.
Marketplace
List trees for sale and let collectors enquire by email. No fees, no friction.
From a single tree to a curated collection.
Add your trees
Capture species, style, source, age, pot, price paid and notes. Upload photos as the tree develops — nothing is ever overwritten.
Log your care
One tap to log watering, liquid feed, solid feed or rotation. Apply to a single tree or the whole bench when it's irrigation day.
See what needs you
The dashboard surfaces trees that are overdue. No more wondering whether you fertilised the maple last weekend.
Sell when ready
Mark a tree for sale and it lands on the public marketplace. Buyers enquire by email — no fees, no checkout, no middleman.
Care thresholds you can trust.
Tuned for typical outdoor collections in temperate climates. Override per tree as needed.
Water
Every 24 hours
checked dailyLiquid feed
Every 1 week
growing seasonSolid feed
Every 6 weeks
slow releaseRotate
Every 30 days
even canopySpecies care, written for UK growers.
Watering, feeding, repotting, pruning and a month-by-month calendar for each species, with timing adjusted for your region.
Japanese maple
Acer palmatumThe iconic deciduous bonsai — slender twigs, palmate leaves, and four genuinely different seasons.
Chinese elm
Ulmus parvifoliaThe most forgiving deciduous bonsai. Fast, vigorous, tolerant of mistakes, and beautiful in every season.
Juniper procumbens 'Nana'
Juniperus procumbens 'Nana'The classic mall bonsai, often the first tree people own — and often killed by being kept indoors. Outside, hardy, sun-loving and beautiful.
Ficus retusa
Ficus microcarpaThe best indoor bonsai. Tolerant of household conditions, fast-growing, and the only common bonsai species that truly thrives without a winter dormancy.
Satsuki azalea
Rhododendron indicumThe flowering specialist. Cloud-like masses of bloom in late May to June, evergreen for the rest of the year, and a substrate and watering regime unlike anything else in bonsai.
Trident maple
Acer buergerianumThe other classic maple — faster, hardier, more forgiving than its Japanese cousin, and famous for spectacular flaking bark.
A garden remembers what you forget.
Free to use. Your data stays yours. Built for collectors, not commerce.
Quick answers.
Is it really free?
Yes. Collection tracking, care logs, photo history, overdue alerts and the marketplace are free — no time limit, no credit card.
Who sees my collection?
Only you. Trees, logs, photos and notes are private to your account. Listings on the marketplace show only the data you put in the listing itself.
How do marketplace enquiries work?
A buyer fills in a short form on your listing. We email the message to you and arrange nothing else — you reply directly and take it from there.
What about photos? Can I delete one?
Yes — but new uploads never overwrite old ones, so you can build a long timeline. Delete a photo whenever you want.
Can I use it on my phone?
The whole interface is mobile-first. Photo upload, quick care logs and the dashboard all work from a phone on the bench.
Can I export my data?
There's no self-service export yet. Email info@kentaibonsai.com and we'll send you a copy of your data. If a one-click export matters to you, let us know — we'll prioritise based on demand.