After the first frost, the thought comes to mind, "If only I would have brought that plant in, I could have saved it!" Yet the truth is, we’re never quite prepared for that first frost! Before the weather turns cold, decide which plants you want to bring in. Provided it’s not an edible plant, consider applying systemic insecticide to prevent bug problems (the bugs like a winter vacation in a warm climate also!). DO NOT apply systemic insecticide to herbs that will be used for culinary purposes! Perennial herbs can be left in the ground, but a part of the root can be dug, potted and brought in for year-round use. For any plant, use a suitable container and a good potting soil mix.

Colorado’s fall/winter sun, although bright, cannot match the intensity of summer sun. Plants that have been exposed to full sun during the summer may decline in health as the days get shorter. Cut two-thirds to three-quarters of the growth off the plant—the new growth that comes on will then be adjusted to the lighting available in the house. Full sun plants will still want maximum sun in a south or west exposure. Shade plants can be brought in to a bright location without drastic measures.

Cut back on watering and fertilizing as plant activity will subside with shorter days. Not all plants tolerate being inside during the winter. If you’re having problems with your plants, bring a small sample in a zip lock bag to Phelan Gardens for advice from one of our staff members.

For any questions you have on this article, or any topic of concern, email us—or better yet, come by and talk to one of our professional staff members. Remember, Phelan Gardens is open year-round!

For additional information, check the following links:

• Herb Gardening Information
• Growing, Preserving and Using Herbs
• Managing Houseplant Pests