Re: The plant that's is not unlocked
This confusion is caused by how plants are unlocked. If I have my way, I hope EA should force PopCap to rework the new almanac to bring back the colour padlock to make things clear from there.
Grey padlock = Seedium
Gold padlock = $$$ premium
Blue padlock = Gemium
Green padlock = Power Mints
Not all plants are seedium (plants which are unlocked by seeds).
There are $$$ Premium plants (plants which are unlocked by real money from the store)
There are Gemium plants (plants which are unlocked by gems from the store)
Last but not least, there are Power Mints (except Enlighten-mint) which are unlocked by 100 mint (tokens) when there are available from the store.
Hope this helps.