Tiny Eden Planters: Sizes & Add-on Rules
Planters are the hard constraint on everything else: pot footprint decides which plants fit, and pot size decides whether the clip-on add-ons will attach at all. The rules below come from developer and player replies in the Steam Discussions during launch week, cross-read against the achievement list.
The rules, with sources
| Rule | Detail | Source |
|---|---|---|
| Add-ons only clip to large planters | Cooling fans and grow lights attach only to the larger 4x4 planters — the size that holds onions. On the three starter planters there is simply not enough space and the add-on will not attach. | Steam Discussions, Coolin Fan and Grow Light thread, 7 Sept 2026 |
| The plant must be at the shoot stage | The plant in the pot needs to be at the smaller shoot stage when you attach an add-on. A mature plant fills the space the clip needs. | Steam Discussions, Coolin Fan and Grow Light thread, 7 Sept 2026 |
| The Castor line is the first that accepts add-ons | The lowest planter that takes the clip-on add-ons is the Castor (also spelled Cantor in the same thread — both spellings appear, the in-game string has not been confirmed either way here). It is the shallow-depth line used for bell peppers and cucumbers. | Steam Discussions, Temperature bug and Coolin Fan threads, 7 Sept 2026 |
| Do not buy the fan add-on early | A player who had already hit the problem put it bluntly: the fan is not designed for the first three planter types, so buying one before you own a Castor or higher wastes the money. | Steam Discussions, Temperature bug thread, 7 Sept 2026 |
| Planters come in a full range of sizes and are craftable | The achievement All Sizes Matter is awarded for crafting all sizes of planters, which confirms the sizes are a crafted progression rather than a single shop purchase. | Steam achievement schema |
| Planters can be customised | The achievement Personal Touch is awarded for customising a planter — 2.9% of players had done it a day after launch, making it the second most-unlocked achievement in the game. | Steam global achievement stats, 8 Sept 2026 |
| Emptying a planter uses the same tool as removing a plant | The trowel removes the plant on the first pass and the soil on the second, so a pot can be re-mixed for a different crop without being discarded. | Steam Discussions, How to remove a dying plant / Compost and Sand threads, 7 Sept 2026 |
Rules checked against the discussion board:
The mistake that costs you money
Buying the fan add-on early. It is one of the first useful-looking items in the shop and it will not work on anything you own at that point. Spend that money on the trowel instead — you need it the moment your first plant wilts, and without it there is no way to clear a pot at all.
What is not on this page
Bajka Games has not published a planter table with names, footprints and prices. Everything above is what can be traced to a source; the individual pot names beyond the Castor line are deliberately left blank here rather than guessed.