Garden just still doesn't seem to be worth upgrading even thou its buffed alot. I have leveled it up to the point where each upgrade costs 1T, sword dmg is at 2T and craft is at 3T. That said, the garden is something like 50% upgrades against my swords. Still, when I am offline for 12 hours++, I earn above 2Q coins from offline auto attacking and only 4T from tree. While active, the differences are even bigger. 2000T vs 4T, that is 500 times more earned from offline attacking. What I think is that garden NEEDS to be buffed by something like 100-200x what is is today.
I am currently at lvl 160k, and what I find the best combo is:
3x Sword of Brute (because the dps on Sword of Brute is the highest of all swords) made while having Sword of Craft
1x Sword of Aura (increasing dmg of all swords by alot)
1x Sword of Venom (reducing hp of all enemys by 20%, which is 20% extra dmg)
1x Sword of Luck (increases gold per kill by alot)
I keep the Sword of Craft untill I have 3 Brutes, and 2 of luck/aura/venom and then scraping the sword of Craft for the one of the 3 buff swords I am missing
 "Auto-Attack!"){kind=icon}