Unless you live in the Southern Hemisphere, don't worry about it now. You can cut off some of the bottom leaves and let the plant harden up for winter, but now is not the time to feed plants. Next March, add a large spoonful of Epsom Salts for each 5 gallons of soil and water in. Two weeks later fertilize. Then foliar feed with spray n grow every ten days. If you still do not get dark, healthy leaves, your plant is sick. Bill