Seed Upgrades: Costs, HP and Grow Time

How seed upgrades work

Buy seed upgrades from the seed’s upgrade controls. The next-upgrade price and full level table explain the cost and points. An upgrade applies to that seed type, including all its owned copies. Seed levels cap at 10. They do not replace Crop Mastery and do not change existing growing crops.

Exact prices by rarity

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Target level	Farm level	Base-HP multiplier	Base-time multiplier	Common	Uncommon	Rare	Epic	Legendary	Mythical
1	1	1×	1×	—	—	—	—	—	—
2	1	1.06×	0.98×	100	500	2,000	5,000	10,000	16,000
3	2	1.12×	0.96×	140	700	2,800	7,000	14,000	22,400
4	3	1.18×	0.94×	200	980	3,920	9,800	19,600	31,360
5	4	1.24×	0.92×	280	1,380	5,490	13,720	27,440	43,910
6	5	1.3×	0.9×	390	1,930	7,690	19,210	38,420	61,470
7	6	1.36×	0.88×	540	2,690	10,760	26,900	53,790	86,060
8	7	1.42×	0.86×	760	3,770	15,060	37,650	75,300	120,480
9	8	1.48×	0.84×	1,060	5,280	21,090	52,710	105,420	168,670
10	9	1.54×	0.82×	1,480	7,380	29,520	73,790	147,580	236,130

Rounding and acquisition price

Each seed has different integer HP rounding and base grow time. Individual seed pages show the actual result at every level. Upgrade prices depend on rarity, not the seed’s purchase price. The seed-level time formula has a 60-second floor before Pond and companion effects.