Meet Botanical Vision v4 — and Growth Bias, the dial that steers it

A plant-care AI that decides for you is fragile. A plant-care AI you can steer is a tool.

Two names worth knowing

Every check-in photo you upload to Botanical Legacy passes through a single image-analysis pipeline. Until now, we've never given it a public name. Internally, it's been the engine behind species identification, health diagnosis, growth measurement, lighting verdicts, and the reasoning behind every watering interval the app proposes.

That pipeline is Botanical Vision v4. We're naming it because it's a real product surface, not an undifferentiated AI slush — and because the next year of work on Botanical Legacy is going to ride on top of it.

The other name is Growth Bias, and it's the headline feature shipping today. It's a single dial — Vigor, Bloom, or Equilibrium — that tells Botanical Vision v4 what you're cultivating for. Every recommendation it makes from now on tilts toward the outcome you've named.

This piece is the introduction to both.

What Botanical Vision v4 actually does

Every check-in photo passes through a single analysis pass that handles identification, health diagnosis, growth measurement, and an environmental read of the lighting in the frame. The results feed into the per-Specimen Digital Shadow — the continuous moisture-and-health model that runs every night.

A small thing that matters disproportionately: when the watering or fertilising rhythm changes for a Specimen, the reason for the change rides along with it in plain language. You don't have to play detective on why an interval shifted.

The point of giving it a name is honesty about scope. Botanical Vision v4 is a system that runs once per photo and produces a reading. It's not magic, and we've stopped pretending the AI word is enough to explain what's happening.

When a watering interval moves, you should be able to see why. Botanical Vision v4 carries the reason on the change.

Growth Bias — the one setting that changes the model's tone

Most plant-care apps make a single recommendation per plant, optimised for keeping it alive. That's a defensible default. It's also a quiet assumption that every Guardian wants the same thing, which isn't true.

Some people are cultivating a Monstera for size. Some are coaxing a Hoya into bloom. Some have inherited a long, established collection that they want to hold steady through the winter without surprises. The right recommendation for each of those Guardians is a different recommendation.

Growth Bias is the dial. Three options, sentence-case, no ambiguity:

• Vigor. Push new growth. Best for plants you want to size up — young aroids, fresh propagations, a Pothos you want trailing within the year.
• Bloom. Coax flowers. Best for plants you're growing for the show — Hoyas, orchids, citrus, anything where the flower is the point.
• Equilibrium. Steady maintenance. The default. Best for a mature collection, a Specimen in recovery, or any plant you're just trying to keep healthy without an agenda.

Set it once on your Sanctuary and every plant inherits it. On the paid plan you can also override per Specimen — your Monstera on Vigor while the Hoya on Bloom while the rest of the collection stays Equilibrium.

How it actually changes recommendations

This is the bit most "AI preferences" features fudge. Growth Bias doesn't change the facts the model sees. It changes the weights on what the model recommends.

A Specimen with declining moisture in dry air gets watered earlier under any bias. That's the safety rail. What the bias changes is the tone of the recommendations around that safety rail — whether to suggest feeding this month, whether to nudge the plant toward brighter placement, how aggressively to honour the seasonal signal. Equilibrium leaves these in their default position. Vigor and Bloom pull them in their respective directions.

The bias never overrides health. A Specimen flagged as critical gets recovery-grade care regardless of what you've asked for. We don't push Vigor on a sick plant.

Applied at the next calibration pulse

When you change the bias, nothing changes overnight. The new setting is folded into the next calibration pulse — the same nightly run that updates every Digital Shadow — and the recommendations adjust from there. No abrupt overnight shift, no frantic schedule rewrite. You'll see the new tone in tomorrow's Sanctuary Brief.

The Sanctuary Brief — your collection in a paragraph

Once Botanical Vision v4 is reading your photos and Growth Bias is steering the model, you don't read fifty Specimens one card at a time. You read the Sanctuary Brief.

The Brief is a two-to-four sentence narrative written fresh every morning. It summarises what shifted overnight, what's worth your attention today, and what's quietly thriving. The tone shifts with the state of the collection — calm when everything is steady, alert when a Specimen has crossed a threshold, opportunity when a Specimen is on the cusp of something good. It also acknowledges your bias: a Sanctuary on Vigor reads differently from one on Equilibrium, because the model knows what you're cultivating for.

It's the running record turned into a sentence you can read in five seconds with coffee.

What ships alongside

Growth Bias is the headline. A handful of quieter additions ship with it:

• AI-suggested nicknames. When you add a Specimen, Botanical Vision v4 offers four nickname options in your locale — playful, botanical, hybrid, or your own. The same suggestions show up when you rename a Specimen later. Detail in our propagation guide, where it matters most for trays of identical cuttings.
• Care Chronicle enrichment. When you jot a note like "yellowing on the two lower leaves, soil felt heavy", the system parses it into a structured observation and folds it into the next calibration. Your eyes augment the camera's. More on this in our health-signs guide.
• Photo-grounded interval reasoning. The "why did this interval change?" line attached to every recommendation. Less mystery, more agency.

None of these is a standalone feature in the way Growth Bias is. They're the ground layer that makes Growth Bias trustworthy — a model that explains itself in plain sentences earns the right to be steered.

Why this matters

Most plant-care AI to date has been pitched as a black-box helper. Trust us, we know your plant. That works until it doesn't, at which point the user is stuck between an app that won't say why and a dead plant.

The bet behind Botanical Vision v4 and Growth Bias is the opposite one. The model should explain itself in plain sentences, run on inputs you can inspect, and respect a preference you've named. The interesting product question isn't how clever is the AI? — it's can a Guardian steer it?

We think yes. Growth Bias is the first dial. There will be more.

Frequently asked questions

What's the difference between Vigor, Bloom, and Equilibrium?

Vigor pushes for new growth, Bloom optimises for flowers, and Equilibrium is the steady default — the right setting for a mature collection or a Specimen in recovery. The bias changes the weights on the recommendations the model surfaces, not the underlying facts about the plant. A Specimen flagged as unhealthy gets recovery-grade care regardless of which bias is active.

Is Growth Bias free?

Sanctuary-wide Growth Bias is included on every plan, free and paid. Per-Specimen overrides — different bias settings on different plants — are part of the paid plan. The free plan gives you one bias for the whole collection, which is the right setting for most Guardians most of the time.

Will changing the bias hurt my plants?

No. The bias never overrides health — a Specimen flagged as critical gets recovery-grade care regardless of what you've asked for. Vigor on a stressed plant doesn't push it harder; the safety rails hold. The bias only changes recommendations within the range of healthy options for that Specimen.

How fast does the change take effect?

The new setting is applied at the next calibration pulse — the same nightly run that updates every Digital Shadow. You'll see the new tone in tomorrow's Sanctuary Brief, not overnight. This is deliberate: nothing about your plant care changes abruptly when you flip a switch.

Is Botanical Vision v4 a different model from before?

The pipeline name is new; the underlying capability has been shipping for several releases. Naming it now is about honesty — Botanical Vision v4 is the part of the product that reads your photo and feeds the Digital Shadow, and it deserves a name you can point at instead of being lumped under "the AI."

Can I see what Botanical Vision v4 read from my last photo?

Yes. Open the Specimen, go to the Care Protocols tab, and the Identity card surfaces the reading — what the model identified, what it diagnosed, and the reasoning attached to any interval change.

Try it yourself

Botanical Legacy's free Observer plan covers up to five Specimens, with sanctuary-wide Growth Bias included. Every new account also includes a 90-day trial of Cultivator, our paid plan, which adds per-Specimen bias overrides, the local weather feed, sensor integrations, and the full Visual Progression photo diagnostics.

If you want to see what a steered Sanctuary looks like before signing up, the platform preview walks through the experience without an account.

A plant-care AI that decides for you is fragile. One you can steer is a tool. This is the first dial.

START YOUR SANCTUARY →

Botanical Legacy, May 2026. Growth Bias ships free across nine locales. Botanical Vision v4 runs on every check-in photo on the platform.