Tree growth bonuses on terrain

[NeoBasilisk]

The wiki states that most trees only get a bonus to growing time if they're on their native coniferous/broadleaf forest terrain. Hazelnut/Willow are listed as exceptions with Mudflat/Swamp. Someone is telling me that certain trees also get bonuses on Moor and Grassland. Is this true?

[Sevenless]

Birch, which is seen natively on grassland, does not get a growth bonus when growing on grassed terrain via seeds.

[Gallade]

Birch, which is seen natively on grassland, does not get a growth bonus when growing on grassed terrain via seeds.

What about forest terrain that was reverted to grassland due to a lack of native trees? Would it support birches?

[MagicManICT]

The terrain doesn't keep it's old information when it changes. You'll have to terraform it back into the proper type.

[Sevenless]

The terrain doesn't keep it's old information when it changes. You'll have to terraform it back into the proper type.

when chopping trees in village, it's wise to leave a tree or two to keep the terrain from turning until you know where the tree farm will go.

Trees protect a 21x21 centered on themselves from changing (10 radius? it's not round though).

[Gallade]

I know though that trees planted in an alien environment will grow slower, but have a change of slowly changing tiles to those of their native biome. How fast are we talking about?

[DDDsDD999]

Trees take a week to grow on their native terrain (+/- a decay tick for the last stage), they take 2 weeks to grow on non-native terrain.

I'm pretty sure you can't grow trees on swamp/mudflat. (Yes, hazels do naturally spawn on mudflat, but rarely at that)

[SuperNoob]

Trees take a week to grow on their native terrain (+/- a decay tick for the last stage), they take 2 weeks to grow on non-native terrain.

I'm pretty sure you can't grow trees on swamp/mudflat. (Yes, hazels do naturally spawn on mudflat, but rarely at that)

willow trees show up in swamps naturally...now I have to test growing a tree in a swamp

[Robben_DuMarsch]

Anyone know how long it takes for a tree to convert the soil type underneath it, on average?

(Also unrelated question, does anyone know the soak value for a Wagon?)

[MagicManICT]

Been a while, but if I recall right, a tree will convert the tile it's on and about a half dozen to a dozen other tiles in its vicinity (something like a 11x11 area or around there). Of course, if the area is already being converted, the efficiency start dropping and fewer tiles change each generation.