Silo

Production Island farm

The silo isn't a flashy building, but without it you won't get anywhere on the Island farm, because it keeps the whole fertilizer cycle for the plantations running. Worth building straight away and gradually pushing to maximum.

Produces

Island fertilizer

The silo is the key production building of the Island farm, because it's the only one that can turn manure into island fertilizer. None of the island plantations can manage without fertilizer, so the silo sits right at the start of the whole production chain out there. It takes up an 8x5 area and you'll find it in the Shop the moment you unlock the Island farm. It's for anyone who wants to grow mangoes, coconuts or bananas on the Island farm, because without fertilizer your plantations simply won't get going.

When to build it

Build the silo as soon as you start putting up your first plantation on the Island farm, because fruit production won't get rolling without fertilizer. Manure doesn't appear out of thin air either, so it pays to have the silo running before you build a second or third plantation. One silo per farm is plenty, because you can keep upgrading it instead of building duplicates and eating up space for nothing.

Is it worth upgrading

Upgrading the silo is worth it in practically every case, because each level noticeably improves the ratio between manure input and production time. At level one you need 220 manure and almost three quarters of an hour for 10 units of fertilizer, at the top level 165 manure is enough and you're done in 4 minutes. At max you use a quarter less manure and make fertilizer more than ten times faster, so the upgrade pays you back mainly in saved time and a smoother supply for your plantations.

Building levels

Production at level 1

Output	Ingredients	Time	Cost	XP
Island fertilizer × 10	Dung × 220	45 min	60 000 Island dollars	—

Yield by level – Island fertilizer

Game data, version 8052 (14. 8. 2026).

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