How late is too late in the fall for planting trees and shrubs?
- 2 days ago
- 1 min read

A: Fall is a great time to plant—but don't wait too long!
For Denver and much of the Front Range, September through mid-October is prime planting time for trees, shrubs and perennials. Top growth has finished for the season so there is less above ground demand on the root system. Cooler air and warm soil give plants a chance to get some roots out before winter.
Colorado's fall weather can change quickly, so I don't recommend pushing fall planting too late. Try to finish planting trees and shrubs by the end of October. Evergreens especially may struggle in late fall.
And here's something many gardeners forget: newly planted plants still need water! Give them a good soaking when you plant, then continue watering November through March, during dry periods as long as the ground isn't frozen. Colorado winters can be devastatingly dry.
At least a 2-inch layer of mulch over the root zone and beyond, will help conserve moisture and protect those new roots. Just keep it several inches away from the trunk. Give those roots time to get established before winter arrives, and your plants will have a much better chance of coming through a Colorado winter healthy and ready to grow next spring.
Read our Q & As with Keith Funk answering common Colorado gardening questions here. See his website: gardenwiseguy.com and hear him on the Garden Wise Radio Show

