UMM, you can already add a third plant, when you unlock the right passive

Passive Laboratory Use
Allows the use of up to 3 reagents when crafting potions.

I recommend reading this link
http://tamrieljournal.com/crafting-and-professions/alchemy/

You must not have your alchemy leveled up very far. There is a passive that lets you combine 3 plants. It's how people are able to craft tri-pots that have 3 effects (like the most common one, made with bugloss, mountain flower, and columbine, and which restores all 3 attributes).

Edit: Ninja'd by both @Natjur and @vovus69

arena25 wrote: »

Am I missing something? Which passive?

Laboratory Use.

Didn't vote because it already exists in game.

Although.. I would like that once I attempt a potion that does not work.. if I try to make that potion again it would tell me that!

ZOS should make it so that you must have at least 100 hours played in order to post on these forums lol.

s7732425ub17_ESO wrote: »

ZOS should make it so that you must have at least 100 hours played in order to post on these forums lol.

Now that's a terrible idea. One of the things I like about these forums is helping people out by answering questions they have, or by giving them insight into aspects of the game that they may have missed. Not everyone playing the game is an expert, and even experts miss things and have questions. Frankly, the less experience a player has, the more likely I am to reply to a post from him/her, because I'd like to be able to be helpful and make a difference (and also because their views on things can often be very refreshing, compared to the views of seasoned and sometimes bitter veterans).

Kelleton wrote: »

I don't like the idea, adding a third plant would open up a potion that could give back all 3 resources at once...lets call these supposed potions "triple potions" Now the triple potion would completely ruin the crown shop market because no one would buy crowns for potions and thus destroy immersion.

Ummm.... you can already make them. And they've said that the crown store potions will never be as powerful as those.

I just don't get Alchemy. I had to use a website to figure out Enchanting.
It's like the tail is wagging the dog.
I have a collection of plants.
You can randomly guess and make this or this or maybe this.

I want:
I want to make stam pot. Give me a list of plants to drag to the table

Sandmanninja wrote: »

I just don't get Alchemy. I had to use a website to figure out Enchanting.
It's like the tail is wagging the dog.
I have a collection of plants.
You can randomly guess and make this or this or maybe this.

I want:
I want to make stam pot. Give me a list of plants to drag to the table

Alchemy requires you put in a bit of effort into learning the properties of the plants. Then combining the ones for the effect that you want. It's just that simple. And you don't have to randomly guess- you just have to research.

Sandmanninja wrote: »

I have tried and have reviewed the crafting guide on a number of websites.
It's the whole additive and the random procs that can come from it.

Sigh.

Q: So, once I've learned a variety of plants and what they do, I should be able to successfully and repeatedly craft whatever potion I want? i.e. if I use plant x,y,z today, it will always make the same pot?

Yes, that is the case. I don't know where you got that it was random... it's definitely not.

http://tamrieljournal.com/alchemy-simulator/

That's just one of many alchemy simulators.

And for an example for you, if you want to make a tri-pot, use Bugloss, Columbine, and Mountain Flower. That will get you a tri-pot all the time.

Each ingredient has 4 different effects. If you combine positive effects, they will get you that ability. If you combine negative effects, they will put that negative on it. And if you combine a positive and a negative, they will cancel each other out. It's not that difficult. And it's not random.