Purpose and how to use it

Gain more Crop Mastery progress from each harvest.

The Greenhouse adds fractional harvest-equivalent progress toward Crop Mastery. It does not directly multiply Harvest Points. At Level 25, one seed harvest supplies 1.2 mastery progress before companion effects.

Click the building on your farm to open its menu. Moving a building changes its location, not its owned level. Farm editor placement rules explain entrances and walking access.

Where to get it

The Greenhouse is included with your farm at Level 1; you do not buy a separate building from the seed shop. Find it on My Farm and click its model to open its menu. If you stored or moved it, open Edit Farm → Buildings, select the owned building and place it again. Its level improvements are purchased from its own menu, not by buying another copy.

Every level: benefits, costs and requirements

Exact rule at building level L: Additional mastery progress fraction = (L − 1) ÷ 120. Percentage displays are rounded to at most four decimal places; the fraction above defines the exact calculation.

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Complete Greenhouse upgrade table
LevelBenefitCost to reach (coins)Cumulative coinsFarm levelAppearance
10% extra Mastery progress001Glasshouse
20.8333% extra Mastery progress1,5001,5001Glasshouse
31.6667% extra Mastery progress2,5004,0002Glasshouse
42.5% extra Mastery progress4,0008,0003Glasshouse
53.3333% extra Mastery progress6,00014,0004Growing House
64.1667% extra Mastery progress8,50022,5004Growing House
75% extra Mastery progress11,50034,0005Growing House
85.8333% extra Mastery progress15,00049,0006Growing House
96.6667% extra Mastery progress19,00068,0007Growing House
107.5% extra Mastery progress24,00092,0008Garden House
118.3333% extra Mastery progress30,000122,0008Garden House
129.1667% extra Mastery progress37,000159,0009Garden House
1310% extra Mastery progress45,000204,00010Garden House
1410.8333% extra Mastery progress54,000258,00011Garden House
1511.6667% extra Mastery progress64,000322,00012Conservatory
1612.5% extra Mastery progress76,000398,00012Conservatory
1713.3333% extra Mastery progress90,000488,00013Conservatory
1814.1667% extra Mastery progress106,000594,00014Conservatory
1915% extra Mastery progress124,000718,00015Conservatory
2015.8333% extra Mastery progress145,000863,00016Estate Conservatory
2116.6667% extra Mastery progress169,0001,032,00016Estate Conservatory
2217.5% extra Mastery progress196,0001,228,00017Estate Conservatory
2318.3333% extra Mastery progress226,0001,454,00018Estate Conservatory
2419.1667% extra Mastery progress260,0001,714,00019Estate Conservatory
2520% extra Mastery progress300,0002,014,00020Grand Conservatory

How bonuses combine

Building effects apply only to their named mechanic. Active companion effects combine with buildings under the game’s caps: late-penalty reduction 75%, weather-bonus strength increase 100%, fertilizer strength increase 50%, seed grow-time reduction 34%, and automation capacity 96 hours. These caps describe fully combined systems, not bonuses supplied by this building alone.