Q&A: Best Time to Plant Perennials

Plant large-sized perennials in early fall, and they'll perform better in the garden come springtime.
Yarrow

Yarrow

Bitter-tasting yarrow (Achillea millefolium) has been used as as folk remedy to treat colds and flu and to lower fevers by inducing sweating. Tea can be brewed from the leaves or flowers, but you'll probably want to add honey or another sweetener. Like many herbs, scientific studies have not proven yarrow's medicinal benefits, so always consult a physician before using it, and do not give it to children.

Photo by: National Garden Bureau

National Garden Bureau

Q: What are the advantages, if any, of planting perennials like yarrow and delphinium in the fall?

A: Early fall is a good time to plant larger sizes of perennials (if they are available) because the weather is cool and reduces stress on the top parts of the plants. The soil also stays warm and allows the roots to grow, helping the plants to get established in the landscape. In the spring when the plants come out of dormancy, they should perform better than if they were planted in the spring and asked immediately to bloom (in addition to rooting and becoming established). Note that smaller-sized plants from small pots may not root deeply enough to avoid heaving during the freeze-thaw cycles. However, planting larger plants in fall generally works well.

Next Up

Q&A: Planting Potted Perennials

Tips for planting perennials in pots.

Perennials That Pop!

Try these suggestions for memorable perennials that will add impact to your garden.

When to Divide Perennials

Learn how to tell if your perennials need dividing—and when to do it.

The 10 Essential Steps to Planting Perennials

Get your perennials off to a solid start and they’ll reward you with many seasons of color.

Perennial Plants

Discover reasons why you should add perennials to your yard.

How To Choose, Plant And Grow Perennials

Grow gorgeous blooms year after year with tips from this helpful guide.

Planting and Growing Yarrow

Learn what you need to know about growing yarrow.

Growing Wild Tulips

Consider the hybrid’s perennial cousin when planting bulbs in fall.

Q&A: When Is It Too Late to Plant Bulbs?

If you miss the optimum planting time for spring-flowering bulbs, go ahead and plant them anyway.

Perennial Stars

Have planting to do? Master gardener Paul James suggests some interesting plants you may not be familiar with that will increase the variety and beauty in your garden.

Go Shopping

Spruce up your outdoor space with products handpicked by HGTV editors.

What's New in Outdoors

On TV

Flip or Flop

7:30am | 6:30c

Flip or Flop

8:30am | 7:30c

Flip or Flop

9:30am | 8:30c

Flip or Flop

10am | 9c

Flip or Flop

10:30am | 9:30c

Flip or Flop

11am | 10c

Flip or Flop

11:30am | 10:30c

Flip or Flop

12pm | 11c

Flip or Flop

12:30pm | 11:30c

Good Bones

1pm | 12c

Good Bones

2pm | 1c

Good Bones

3pm | 2c

Good Bones

4pm | 3c

Good Bones

5pm | 4c

Good Bones

6pm | 5c

Good Bones

7pm | 6c
On Tonight
On Tonight

Should I Stay or Go?

8pm | 7c

Follow Us Everywhere

Join the party! Don't miss HGTV in your favorite social media feeds.