Sandustry Plants & Seeds Guide: Seed, Wet Seed, Washer & Planter

Quick answer

Sandustry's plant chain starts with Seed, turns into Wet Seed when water is involved, then moves into Seed Washer and Planter Box setups. The goal is to keep seeds, water, gold, petals, and waste material separated before the farm grows dense enough to clog its own output.

For the current Early Access build, treat plant automation as a controlled module rather than a loose growing area. A small, filtered farm is easier to debug than a large open room full of mixed drops.

Seed to flower farm flow

How to get seeds

The most reliable early route is to progress through wet-sand processing, then separate seed-like organic outputs before they mix with heavier materials. If you are already running a Kinetic Press line, keep its Gold and Seed output split immediately after processing so the seed stream can be reused instead of buried under gold.

If a community blueprint claims to create seeds automatically, check whether it was made for the Demo or Early Access. Demo-era farms can still teach the idea, but exact material names and machine requirements may have changed.

How to make Wet Seed

Wet Seed is a routing problem: add water where you can recover it and where stray solids cannot flood your pump or output belt. The clean setup is:

1. Bring Seed into a short, visible wetting lane.
2. Add water from the side or top, not through the same belt path.
3. Use a Filter to keep wet material from drifting into gold storage.
4. Buffer a small amount before the Planter Box rather than dumping the whole pile at once.

If the farm is not feeding consistently, reduce the input first. A smaller controlled seed drip usually beats a packed chute.

Seed Washer role

The Seed Washer belongs between messy extraction and controlled farming. Use it when your input stream still contains sand, wet sand, residue, or other material that would confuse a planter lane.

Place the washer where you can see both the water input and the output split. Most seed washer problems are not machine failures; they are filter mistakes, blocked belts, or water pressure issues upstream.

Planter Box role

The Planter Box turns a seed line into a repeatable plant farm. Keep growth contained with lifters, filters, or walls, then collect drops beneath the planter area. The best beginner setup is one or two boxes with a clear bottom output and a side return lane for seeds that should be reused.

Do not scale to a huge planter room until a single module works for several minutes without manual cleanup.

Flower farm layout

This layout keeps the farm readable. When it breaks, you can tell whether the problem is input, growth, harvest, or output.

Common problems

Seeds are not reaching the planter

Check the last Filter before the Planter Box. If it is sorting by the wrong material, seeds may be redirected into waste or storage.

The farm grows once and stops

The plant cell may be starved, flooded, or packed with old drops. Clear the growth area, restart with a smaller seed feed, and watch whether the first blocked tile is above or below the planter.

Gold and petals are mixed

Split outputs earlier. Heavy and light materials layer differently, so a single long belt often hides the real jam until the storage end is full.

Demo farm instructions do not match Early Access

Use Demo guides as historical layout ideas only. Recheck machine names, unlocks, and outputs in the current Research screen before rebuilding the design.

Related pages

• Seed Washer setup
• Planter Box
• Recipes & Production Flow Chart
• Research Order
• Void Guide

Sources and update policy

This page follows the current Sandustry Early Access routing used across the site's Seed Washer, Planter, Recipes, and Research pages. Check the official Steam page and the in-game Research screen after major updates, because plant-chain names and prerequisites can change during Early Access.