or even adequate

As you huddle inside your home this winter cursing the gloomy darkness, remember that
you’re not alone: The season has an even worse effect on your plants. Many common
houseplants need far more hours of light than they get naturally in the middle of February,
especially if they don’t have direct exposure to a sunlit window. Although the
incandescent and fluorescent bulbs most people have in their homes will keep plants alive,
they don’t emit light that’s within the temperature range necessary for optimal, or even