Best grow lights for large many plants? : r RareHouseplants how to charge max battery vape pen 380mAh Max Vape Pen Battery Preheating Battery de Anthurium Crystallinum 35 cm 15 Pet Friendly Plants Safe for Cats and Dogs Bloomscape Birds Nest Fern Brown spots and brown edges on the leaves. This can also be caused by too much heat (sun burnt) and will only show on the area of the plant that was exposed to too much light or sun.