Garden Dilemmas, Delights & Discoveries, Ask Mary Stone, New Jersey Garden blog

Dividing Perennials

a red pot emerging green hosta perennials ready to be divided

Column updated April 1, 2021 

Hello fellow readers, Divide and multiply, and while you’re at it, why not move those that may be better living somewhere else. Of course, I am referring to dividing and moving perennials, not family members :^) Sally from Wind Gap asked if spring is a good time to tackle the task.

When to divide perennials

Some say it’s best to divide spring and summer blooming perennials in the fall and fall bloomers in the spring so all of the plant’s energy can go to root and leaf development rather than flowering. I’d say most perennials recover best if divided in early spring, just as new growth is emerging. The root systems are full of stored energy, and they are less likely to suffer physical damage and leaf evaporation than when fully developed.

While there are many spring to-dos, this is one that I marvel at.  Making more of what you have without spending money is like finding a bargain. Sharing with others adds to the delight! And, it rejuvenates the old and keeps multiplying plants under control.

Dividing perennials Mary Stone of Garden Dilemmas

Ready to Divide Shasta Daisies

How to divide perennials

Before you dig up your plant, water thoroughly and prepare the hole or giveaway pot where the division is going; choose a cloudy, chilly day- ideally when light rain is in the forecast to keep roots from drying out. There are two basic ways of dividing perennials. Firm, dense roots like hosta or ornamental grasses will need to be cut apart with a sharp knife or spade. Tangled and fibrous roots or clumps can be teased apart by hand or with two garden forks placed back-to-back then pulled gently apart.

Speaking of ornamental grasses, I’ve noticed some have yet to cut down those left standing for winter interest. While usually best to cut close to the ground in March, late doers should cut just above where the new blades have sprouted not to disfigure. Hedge trimmers or chain saw for those braver than I are perfect tools for the task. Times a wasting!

Garden Dilemmas? (and now on your favorite Podcast App.)

Click through to learn about Dividing Iris.
Mary Stone, owner of Stone Associates Landscape Design & Consulting. As a Landscape Designer, I am grateful for the joy of helping others beautify their surroundings which often leads to sharing encouragement and life experiences. These relationships inspired my weekly column published in THE PRESS, 'Garden Dilemmas? Ask Mary', began in 2012. I dream of growing the evolving community of readers into an interactive forum to share encouragement and support in Garden and Personal Recoveries - seeking nature’s inspirations, stimulating growth, weeding undesirables, embracing the unexpected. Thank you for visiting! Mary

Leave a Reply


This site uses Akismet to reduce spam. Learn how your comment data is processed.