IVe ordered a short about 9inches tall plant off ebay. came in fine condition. Its been inside for a few months now and ive noticed some leaves randomly get brown on the ends and work there way to the stem of the leaf shriveling up along the way. Im growing in indoors right now until it gets warmer in a mini terrarium like unit. Its got artificial light, and I dont think im overwatering at all. Why is it doing this? It has just finally grew two leafs and this happened to both of them. I plucked them off and am going to make tea out of them rather then just let them go to waste. But any ideas why this is happening? and does anyone think i could plant this outside and leave it their all year?

not sure of the variety.. I think its from seed.

Thanks