The example, calculated
Tomato · Spring 18
12 plants. First harvest: 18 + 10 = day 28. Add 4 days for each repeat.
Spring 28
Spring 18 result: day 28, one round
Tomato planted on Spring 18 reaches its first harvest on Spring 28 under this planner’s ordinary-growing assumptions. The example has twelve plants and one scheduled harvest round. Day 28 is included in the season’s window. The four-day regrowth interval would put a later date on day 32, so that date is not included.
The calculation uses ten growth days before the first harvest. Add 18 and 10 to obtain 28. The repeat interval cannot replace that initial wait, even when the planting is late. A Tomato record can have regrowth while a particular valid planting produces only one date within the selected season.
Latest start = 28 − 10 = 18
Subtract Tomato’s ten-day first wait from 28 to obtain the last start that fits one harvest. Spring 19 moves the first date to 29 and gives no in-window harvest. This is the adjacent boundary: day 18 fits exactly, and day 19 is already outside. More plants do not move either result to an earlier date. The latest-start field therefore describes first-harvest eligibility, while the date list describes all rounds. Use the two together when looking up a regrowing crop near the boundary.
An earlier start can leave room for another interval. Spring 14 gives a first harvest on day 24 and a second on day 28. The full-season Spring 1 reference gives five dates instead. These results differ because of the chosen start; the crop’s growth and regrowth fields remain ten and four days respectively.
Meaning and limits of an outside-window answer
A result beyond day 28 means no harvest is scheduled inside this selected season. It does not establish that the plant dies, nor does it forecast an early harvest in the next season. Tomato’s record lists multiple seasons, but this calculation does not transfer a planted bed or its remaining wait across their boundary.
Twelve plants is a planting quantity, not a predicted number of Tomato items. One round means one scheduled harvest date. The calculation excludes item yield, quality, contribution value and profit. It assumes daily watering, ordinary fields, no fertilizer, buffs or Myco, and harvest on maturity. A final-day result has no spare calendar day inside this window if those assumptions are not met.