CFG:AddUpgrade( "speed", {
    upgrade_id = "speed_upgrade_01", -- STRING, unqiue name for each upgrade
    upgrade_name = "Growth Phytohormone Splice",
    upgrade_description = [[Due to new revolutionary technology, splicing of the cannabis DNA allows for increased growth rates.]], -- STRING, description for upgrade, blank for nothing
    upgrade_required = "", -- STRING, is there a upgrade that must be unlocked first? blank for none
    upgrade_weedupgrade = { -- This is the actual speed increase on the plant
        value_type = "percentage" -- "percentage" or "seconds" eg. 10% faster or 10 seconds quicker
        value = 10
    },
    price = 0, -- NUMBER, price in cash 0 for no money requirement
    exp_required = 0, -- NUMBER, exp needed 0 for no exp requirement
    hide_detail_if_not_enough_exp, = false -- TRUE/FALSE, can players see the information if they aren't experienced enough
} )