Tiny Eden soil mixture: how filling a planter works

What the game tells you, word for word

The in-game Gardener's Guide has a page called Preparing the Soil, and it is the clearest statement of the mechanic anywhere. It frames the mix as something each plant needs rather than a single recipe you learn once.

The two panels underneath it are the actual controls. One covers how to pour, the other covers what to watch while you do — and the second is the one people miss, because it is where the failure mode lives.

• Mix & Pour — "Select an ingredient and hover over the planter. Hold [LMB] to gradually add it to the mix."
• Watch the Balance — "Follow the recipe widget closely. Precision matters, so avoid overfilling any single ingredient."

The order that trips people up

You cannot fill an empty planter and decide what to grow later. Attempting it produces the message "Select plant for this planter first", because the targets are derived from the plant you assign.

So the working sequence is: place or craft the planter, assign a plant to it, then pour. Once a plant is assigned, the planter starts showing a floating "Fill with soil" label in the world so you can see at a glance which ones are still waiting.

Targets belong to the planter, not to the game

Hovering a planter opens a panel headed with that planter's own name — one observed in release footage reads Planter: Sirius. Under it sits Soil Requirements with a percentage, then one row per ingredient showing progress against a target.

In that example the rows read Compost 1.9/6 and Sand 0.0/4, and the percentage climbs from 19% to 59% as compost is poured toward six. A different planter in the same session was being filled to five instead, which is the clearest sign that there is no single recipe to memorise.

A per-plant table of the recipes, including the nine plants that need super compost, is on the soil recipes page.

Overfilling is possible, and the game notices

Because you pour by holding the button rather than clicking a quantity, going past a target is easy. The Gardener's Guide says precision matters and to avoid overfilling any single ingredient, which is unusually direct for a tutorial panel in a cozy game.

In the footage the player overshoots and the game responds with a message about being over-planted, so the state is detected rather than silently accepted. Pouring in short taps near the target is the practical way to land on it.

Where the ingredients come from

Ingredients sit in your hotbar as weighed items rather than counted ones — compost and sand both appear with kilogram figures next to them. That is why the pour is gradual: you are emptying a bag, not placing an object.

Compost also turns up as a gift from other characters early on, and sand alongside it, so the first few planters can usually be filled without buying anything. Beyond that they come from the shop like the rest of the garden supplies. Super compost is the exception players run into: they report it is not sold and comes out of an upgraded composter instead (where super compost comes from).

What this does not answer yet

The footage covers first-time filling of empty planters with compost and sand. It does not show clay, perlite, coco coir or peat appearing as rows in the requirements panel, even though the official FAQ names all of them as soil components.

Update #2 is relevant here: on 9 September the developers fixed soil info cards so they "correctly display all seven soil components". That is about the info card rather than the requirement rows, so it does not confirm that every component becomes a fill target — but it does mean the footage above predates a UI that shows more than it used to.

It also does not show a planter that already has a plant growing in it having its mix changed. Whether an established pot can be re-balanced, and what happens to the plant if you do, is not documented anywhere official (待确认).

Frequently asked

How do you change the soil mixture in Tiny Eden?

Select an ingredient, hover the planter and hold left mouse button to pour it in gradually. The Soil Requirements panel on that planter shows each ingredient's target.

Why does it say select plant for this planter first?

Targets come from the assigned plant. Assign one to the planter before pouring any soil.

Is there one soil recipe for everything?

No. Targets are per planter — one observed planter wanted Compost 6 and Sand 4, another was filled to five.

What happens if I overfill?

The guide warns against overfilling any single ingredient, and the game shows an over-planted message when you go past. The exact penalty is not documented.