Garden Prep for Fall Frost | Denver News

September’s here — sunburn and frost warnings in the same day? That’s garden season in a nutshell. It’s time to prep your plants for winter: strip diseased rose leaves, let late blooms form hips to signal dormancy, dig up gladiolus corms, trim perennials (but leave late bloomers like mums to finish), and move tender plants indoors before frost. Plan ahead too — amaryllis need a cool nap for holiday blooms, Christmas cacti crave darkness and chill, and tomatoes get pruned five weeks before frost to ripen what’s already there. Fill empty beds with cover crops like ryegrass or oats to boost soil health, pull weeds before they seed, pinch Brussels sprouts to focus energy. Protect what’s still growing with deep watering and covers during cold snaps. After frost, cut back perennials or leave some for birds and winter charm. And don’t forget — pot up herbs now for fresh flavors all winter long. Listen in comfort:Get a discount on a Soli Pillow: http://solipillow.com/discount/dnn. Advertise on DNN:[email protected] This is an automated, high-level news summary based on public reporting.Report issues to [email protected]. View sources & latest updates:https://sources.thednn.ai/8bd77d3ea54e167b