Hey I planted a peanut plant by itself in a 13 inch wide by 18 inches deep pot and its growing so slow it's about 6 inches tall and has probably 6 leaves I planted it back in the end of December I heard peanuts are slow growing but I'm not sure if there suppose to be this slow I have it in a window were it geats filtered light and the tips of the leaves are turning brown and curling up what can I do to help it?