Why doesn't this BoolValue-based Script work?

Alright, so I've tried a lot of things, like basing the debounce off of a brick's color, which failed, and eventually, I came to BoolValues. I set up my script like this:

local enabled = true
script.Parent.Touched:Connect(function(het)
    if het.Parent.Name == "Can" and enabled then
        local char = het.Parent.Parent
        local PlayerWhoClicked = game.Players:GetPlayerFromCharacter(char)
 PlayerWhoClicked.PlayerGui.TalkGui.Frame.TextLabel.Font = "SourceSans"
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.Visible = true
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.TextLabel.Text = "You watered the Flower."
    wait(3) 
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.TextLabel.Text = "Go tell ParentFigure!"
    wait(1)
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.Visible = false
    game.Workspace.Flower.Watered == true -- Watered is the bool.
    end
end)

the receiving side of the script would be this:

function onClicked(PlayerWhoClicked) 
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.TextLabel.Font = "SourceSans"
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.Visible = true
    local name = PlayerWhoClicked.Name
if workspace.Flower.Watered == true then
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.TextLabel.Text = "You watered the plant?"
    wait(2)
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.TextLabel.Text = " "
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.TextLabel.Text = "Oh, aren't you the greatest!"
    wait(3)
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.TextLabel.Text = "Well, I guess you should be going."
    wait(3)
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.TextLabel.Text = "Bye! Don't forget to visit from time to time..."
wait(3)
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.Visible = false

else 
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.TextLabel.Text = "Water the plant, " .. name
wait(1)
    PlayerWhoClicked.PlayerGui.TalkGui.Frame.Visible = false
script.Parent.ClickDetector.MouseClick:connect(onClicked)

and when I go through the steps to get to the final dialogue, this error happens.

18:17:54.647 - Watered is not a valid member of Model

I've tried and tried, but it won't work. Any ideas why?