Potions outside JKR Room of requirement (spoiler?)

[justcarol67]

maria8162001 here:
> 
> I forgot the order but you should put 3 drops ot red potion & 5
drops of green to the plants and if it doesn't work try reversing it(5
red & 3 green). It's one of those and the plant will come to life.
Just keep trying, cheers.
>

Carol responds:
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IIRC, it's six of red (Gryffindor?) and three of green (Slytherin?),
which may or may not prove prophetic for Book 7. What the plant
blossoms into when the drops are put on it also may be significant.

Carol, not sure whether she needs spoiler space here or not but
playing it safe