As a marigold plant, I understand that my vibrant, sun-loving nature is tied to the warm seasons. When temperatures drop and daylight wanes, I face a mortal threat. Bringing me indoors is a generous act that allows my life to continue. To help you help me, here is my perspective on what I need to successfully overwinter inside your home.
A sudden move from the brisk outdoor environment to a consistently warm, dry house is a tremendous shock to my system. Please, begin the process before your first hard frost. About a week beforehand, please prune me back. Remove about one-third to one-half of my top growth, focusing on any leggy stems and spent flowers. This reduces the mass my roots must support and encourages a bushier form. Next, check my soil and foliage meticulously for any signs of pests like aphids or spider mites. A gentle spray with insecticidal soap ensures I don't bring unwanted guests inside.
My survival indoors hinges on replicating my favorite summer conditions as closely as possible. Light is my most critical need. Place me in your sunniest window, ideally a south-facing one where I can bask in at least 6-8 hours of direct sunlight. Without it, I will become weak, leggy, and pale. I also prefer cooler temperatures. While your home is comfortable for you, a spot that stays between 60-70°F (15-21°C) is perfect for me; avoid placing me directly next to heat vents or roaring fireplaces, as the dry, hot air will stress me.
Understand that my growth will slow dramatically or even stop entirely. This is a normal rest period for me. Consequently, my thirst diminishes. Overwatering is now your greatest enemy and my biggest fear. Please water me only when the top inch of my soil is completely dry to the touch. I would much rather be slightly too dry than sit in soggy soil, which will cause my roots to rot and decay. As for fertilizer, I do not need it during this dormant phase. Feeding me will only force weak, spindly growth. Please withhold all nutrients until you move me back outside in the spring.
Even indoors, please keep a watchful eye on my leaves, especially underneath, for any signs of pest resurgence. The dry indoor air is a perfect breeding ground for spider mites. You can increase humidity around me by placing my pot on a pebble tray filled with water. Pinch off any new flower buds that may appear; blooming indoors depletes my precious energy reserves when I should be resting. With your consistent care, I will remain alive, if not spectacularly vibrant, through the winter. When the danger of frost has passed and the sun grows stronger, you can gradually re-acclimate me to the outdoors, and I will reward your kindness with a burst of new growth and color.
