Oats Seed

What is Oats?

Oats is a common, overnight-cadence permanent seed in the grain family. One owned copy supports one simultaneous planting. Harvesting returns that copy to availability; it does not consume the seed.

Property	Value
Rarity	Common
Acquisition	1,800 Farm Coins
Base growing time	8h
Base HP per produce	864
Base HP/hour per plot	108
Weather affinity	Clear Skies (+15%)
Generation	1
Seed level cap	10
Mastery cap	20
Season	Not restricted to a named Harvest Pass

Planting and harvesting explains available seed copies, timers and freshness. Seed upgrades and Crop Mastery are separate systems.

Where to get it

Buy additional copies in the Farm Coin Shop. Find Oats in the seed list (use its name or rarity filter), then choose Buy copy and confirm. One permanent copy costs 1,800 Farm Coins. Buying a copy is different from paying to upgrade its level.

Once acquired, look for this seed on Seeds or in an empty plot’s planting menu. If all copies are planted, wait for a harvest or obtain another copy; produce in the Barn is not a seed copy. All item sources explains the different shops and reward routes.

Seed levels and exact upgrade prices

“Cost to reach” is the one-step purchase from the preceding level; Level 1 is the starting state. Cumulative cost excludes buying the seed. HP/hour assumes instant replanting, one produce per harvest, no mastery, no matching weather, and no building or companion effects. The farm-level requirement applies to purchasing that level.

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All ten Oats seed levels
Level	Cost to reach (coins)	Cumulative coins	HP each	Growing time	HP/hour	Farm level required
1	0	0	864	8h	108	1
2	100	100	915	7h 50m 24s	116.7092	1
3	140	240	967	7h 40m 48s	125.9115	2
4	200	440	1,019	7h 31m 12s	135.5053	3
5	280	720	1,071	7h 21m 36s	145.5163	4
6	390	1,110	1,123	7h 12m	155.9722	5
7	540	1,650	1,175	7h 2m 24s	166.9034	6
8	760	2,410	1,226	6h 52m 48s	178.1977	7
9	1,060	3,470	1,278	6h 43m 12s	190.1786	8
10	1,480	4,950	1,330	6h 33m 36s	202.7439	9

Mastery requirements and points

These are raw harvest-equivalent requirements without Greenhouse, Supplier or companion progress. Mastery adds points from the seed’s original base HP, not from the upgraded level value. The percentage column describes that original base; integer rounding can make the exact points slightly higher.

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Mastery thresholds for Oats
Mastery level	Additional progress	Total progress	Added HP each	Base-point bonus
0	0	0	0	0%
1	3	3	18	2%
2	5	8	35	4%
3	7	15	52	6%
4	10	25	70	8%
5	15	40	87	10%
6	23	63	104	12%
7	34	97	121	14%
8	51	148	139	16%
9	77	225	156	18%
10	115	340	173	20%
11	173	513	191	22%
12	259	772	208	24%
13	389	1,161	225	26%
14	584	1,745	242	28%
15	876	2,621	260	30%
16	1,314	3,935	277	32%
17	1,971	5,906	294	34%
18	2,956	8,862	312	36%
19	4,434	13,296	329	38%
20	6,651	19,947	346	40%

A clearly defined maximum-seed example

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Scenario	HP each	Time	HP/hour
Level 10, Mastery 20, matching weather; no buildings/companions, Level 1 plot	1,927	6h 33m 36s	293.75

This is not the maximum possible farm output. Plot yield, pond reductions, Windmill strength, active companions, late harvesting, fertilizer and downtime change actual results. Harvest Point calculations explains the rounding and order of operations.

Common questions

Why is inventory worth less than the seed card? An older crop retains its planting-time stats and can lose value if harvested after its Perfect Harvest window. Inventory shows its recorded HP per item. A new seed upgrade does not retroactively alter an already growing crop.

Does a higher-yield plot give extra seed copies? No. It gives extra produce. One crop harvest still advances base mastery once, regardless of how many produce items it yields.