Questions about the farming, tornbushes and artifacts

Hy!
I searched on the forum and the wikis, but i dont find clear explanation for theese questions.
I want syncronise my farmland harvest times, but i cant figure out the proper number without additional informations:
The tribe wiki says, that the pumpkin grows in 8 days, but dont speak about the growth stages length.
I think there is 5 stage because after the planting there is barely green, then one stage with little green leaves, and then, the 3 harvestable stage Baby Bear - Small Sugar - Spooktacular of growth, and if every stage exist for the same time, then 38,4 hours need to reach the next stage. Can you confirm my counts? If i am right, a little math, and every field mature at the same time.
How much time need for thornbushs regenerates? Can be harvested multiple times?
About the artifacts i have numerous question.
1: The rummaging attribute counts as a civilian bonus category, so can be boosted by productivity?
2. The wikis write, that the feasting artifice works only after 100 point, but the other artificie bonus effects works like that? I mean there is a minimum required point for each bonus effect, or only for feasting?
3. The soil digging bonus effect can only decrease the phlegm cost of digging? I dont noticed any speed bonus with 7xindian feather set so 7*16(12 soil digging 4 productivity)= 112 point but still the same speed.
4. The artificie bonuses counts without limits, or there is a tier system just like the agriculture. I mean theoretically there is difference between a 115 mining and 120 mining set, or for example you need to reach a new tier, like 0-99, 100-199, and a 101 and a 199 point bonus set doesnt have differencies because they are in the same level?
Thats for now:) Thanks for your help!
I searched on the forum and the wikis, but i dont find clear explanation for theese questions.
I want syncronise my farmland harvest times, but i cant figure out the proper number without additional informations:
The tribe wiki says, that the pumpkin grows in 8 days, but dont speak about the growth stages length.
I think there is 5 stage because after the planting there is barely green, then one stage with little green leaves, and then, the 3 harvestable stage Baby Bear - Small Sugar - Spooktacular of growth, and if every stage exist for the same time, then 38,4 hours need to reach the next stage. Can you confirm my counts? If i am right, a little math, and every field mature at the same time.
How much time need for thornbushs regenerates? Can be harvested multiple times?
About the artifacts i have numerous question.
1: The rummaging attribute counts as a civilian bonus category, so can be boosted by productivity?
2. The wikis write, that the feasting artifice works only after 100 point, but the other artificie bonus effects works like that? I mean there is a minimum required point for each bonus effect, or only for feasting?
3. The soil digging bonus effect can only decrease the phlegm cost of digging? I dont noticed any speed bonus with 7xindian feather set so 7*16(12 soil digging 4 productivity)= 112 point but still the same speed.
4. The artificie bonuses counts without limits, or there is a tier system just like the agriculture. I mean theoretically there is difference between a 115 mining and 120 mining set, or for example you need to reach a new tier, like 0-99, 100-199, and a 101 and a 199 point bonus set doesnt have differencies because they are in the same level?
Thats for now:) Thanks for your help!