Oak tree

Oak trees are a plant that naturally occurs in temperate forests. Oak trees can also be grown by the player that biome, but can't be sown in hydroponics. A mature oak tree yields 50 wood.

Growing

Oak trees have a base growing time of 30 days, need a minimum soil fertility of 30%, and have a fertility sensitivity rating of 50%. The following table details how long it takes for oak trees to grow in each growable ground type, factoring in the plant resting time and being in ideal growing conditions:

Ground Type	Gravel	Soil	Rich Soil	Hydroponics
Fertility (%)	70	100	140	280
Real Grow Time (days)^[1]	65.15	55.38	46.15	N/A
Base Yield/day^[2]	0.71	0.83	1	N/A

↑ Actual days to grow, taking into account rest time.
↑ Per plant, assuming Crop Yield Multiplier of 1.0.
Note that Difficulty settings change the Crop Yield Multiplier.

Oak trees have the second highest absolute yield out of any tree in the game, with the highest going to teak trees. However, they also have the second longest growing time, again with teak trees taking first. As a result, poplar trees are still significantly better for wood farming; only taking about 50% as long to grow, but yielding 60% as much wood. In terms of yield per day, oak trees are smack-bang in the middle out of all seven trees in the base game.

The oak tree's long growing cycle also means that it's more susceptible to blight loss in non-native biomes, and it's also susceptible to growth slowdown with environmental changes. Only the latter can be circumvented by internalising plant growing. Oak trees are also more difficult to cut down.

Food production

Oak trees don't yield any human-edible products.

Economy

The oak tree's raw product is wood, which has a market value of 1.4 silver. The refined product with the largest profit margin is a grand sculpture, having a 51.25%^[1] profit margin. The following table details silver per day, per plant. It only factors in the 50% selling markdown; the market value of the products; and the yield per day:

Ground Type	Gravel	Soil	Rich Soil	Hydroponics
Raw	0.57	0.68	0.81	-
Refined	0.87	1.02	1.23	-

↑ 110% sell price multiplier and assuming normal quality. Your mileage may vary; see quality for more information on skill level's impact on the average market value of produced goods.