The plague sample is a quest item given to the player by Elena during the Biohazard quest. The player must smuggle it into the gated area in the south-east of Varrock and give it to Guidor along with some ethenea, liquid honey, sulphuric broline and a touch paper.
---- If the chemist didn't give the sample back, try re-obtaining it.
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Because the runescape servers hold a lot of data.
Heaps. iT takes 4000 hours of work to get to level 99 in all skills (according to runescape)
every herb takes 70 mins to grow
Request your recovery questions to be removed, however, this process takes 14 days.
It takes Marigolds 17.5 min. to grow from a seed to the finished product.