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Sandustry building guide

Sandustry Planter Box Guide: Setup and Troubleshooting

Use the Sandustry Planter Box to grow Wet Seed into Flowers and route Gold and Amethelis outputs.

Field guideUpdated August 22, 2026
Planter Box building icon from the official Sandustry Wiki
Planter Box · building icon

The Planter Box converts the Seed branch into a growing Flower. It is not a dry Seed processor: the input must first absorb Water and become Wet Seed. The resulting Flower later yields both Gold and Amethelis.

Sandustry Planter Box facts

PropertyConfirmed value
InputWet Seed
OutputFlower
Passes throughGold and Amethelis
Blocks liquidNo
Blocks gasNo

Input and output flow

Seed + Water→Wet Seed→Planter Box→Flower

Read the flow together with the placement rules below. In Sandustry, the correct material can still fail when it enters from the wrong side, at the wrong speed, or in the wrong physical state.

How the Planter Box works

Growth begins when Wet Seed touches the Planter Box. Gold and Amethelis are the only solid-like outputs that pass through the structure, which supports a collection route below the plant after harvesting. The box itself does not block liquids or gases.

Recommended factory layout

Wet Seed in a separate chamber, then deliver it to an unobstructed Planter Box with vertical growth room. Build a harvest method that does not ignite neighboring crops, and collect dense Gold separately from drifting Amethelis petals.

Common Planter Box problems

SymptomLikely cause or check
Seed does not growConfirm it has become Wet Seed before reaching the box.
Plant has no roomRemove terrain or buildings directly above the growth area.
Harvest output escapesEnclose the area below and account for Amethelis Wisp movement.

Related Sandustry guides and source

Mechanics were checked against the official Sandustry Wiki page for the Planter Box. Recheck research costs and balance-sensitive behavior in the current Early Access build.

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