I spotted a few issues myself.
Don't pay yew trees, the payment costs more than the yew seed.
You should also at least have mentioned farming herbs.
It's called Teleport crystal, not crystal seed.
Gnome maze tree doesn't require any questing to access.
Oaks/willows/maples are good at 1-60 farming nevertheless. I'd recommend doing fairy tale part 1 as it boosts you from 1 to 16 farming allowing you to start with oaks, also rewards magic secateurs.
Herblore Habitat patch doesn't require questing, also easily accessed with witchdoctor mask or juju spiritbags.
Recommend carrying a dueling ring for easy spirit tree access (mobilising armies)
No mention of supercompost.
Taverly tabs or putting your house at Taverly is quicker access to that tree than Falador teleport (same thing for Brimhaven tablets/house).
Catherby loadstone is faster than Camelot teleport, also you could use the shortcut right after for Taverly tree.
No mention of calquat trees.
Nice guide other than that.