When and How to Divide Sedum (Stonecrop)

Dividing sedum is an easy, effective way to rejuvenate aging plants, control their spread, and create new starts for the garden or to give away as gifts.

Whether you’re working with upright types or creeping ground covers, the process is simple and rewarding.

As sedum plants mature, they can become woody or develop bare patches in the center.

Clumps may sprawl beyond their bounds or show signs of decline. Division encourages fresh growth, restores structure, and helps plants thrive.

A close up horizontal image of a clump of stonecrop (sedum) growing in the garden.

At its most basic, division is just a gardening technique that involves lifting a plant out of the ground, separating it into multiple pieces, and replanting them as needed.

In our guide to growing stonecrop, we cover how to cultivate these low-maintenance succulents in your landscape.

This article gives you the know-how to divide your plants, whether you’re growing upright ‘Autumn Joy’ or creeping goldmoss sedum.

Here are the specifics:

Benefits of Dividing Sedum

Dividing sedum provides a few important benefits. To fill in new spaces or expand your plantings, it’s an economical way to propagate new specimens.

A close up horizontal image of goldmoss stonecrop growing in the summer garden.

One mature clump can be divided into several smaller sections, each capable of growing into a full-sized specimen.

It’s also a good way to manage overgrowth. As the plants mature, they can get a bit big for their intended planting area, and division is a good way to reduce their size.

A close up horizontal image of a patch of upright sedum growing in the landscape.

Pruning stonecrop can certainly help, but division is a more long-lasting solution.

Older clumps often become woody and bare in the center, or they may show reduced growth and flower production.

Dividing rejuvenates the plant, improving airflow, increasing vigor, and reducing competition underground for water and nutrients.

What You’ll Need

You don’t need much to get started, but having the right tools on hand makes the process easier.

  1. Digging Tool: A hand trowel or hori-hori knife offers precision for smaller types. For larger clumps, a shovel or spade works well.
  2. Cutting Tool: If your digging tool has a sharp cutting edge, you’re all set. Otherwise, a soil knife or hand pruners can offer precision when cutting through roots.
  3. Water Source: In that in-between time from digging-up to replanting, a plant is vulnerable to dehydration. Keep a hose, watering can, or spray bottle handy to moisten the divisions before and after replanting.

Now let’s take a look at the specifics.

When and How to Divide Sedum

Most types benefit from division every three to four years.

However, you can divide them sooner if the plant shows signs of decline, such as sparse blooms, poor growth, or dying centers.

A close up horizontal image of different types of stonecrop growing in the garden.

Timing-wise, the best season to divide is early spring, right around when stonecrop starts to put out new growth after winter.

This gives the divisions time to establish before the heat of summer arrives.

  1. A day or two before you divide, give your plants a good drink of water to keep them hydrated throughout the process.
  2. Use your trowel or spade to dig around the base of the clump, deep enough to get underneath the root system, and lift it out.
  3. Shake or rinse off any excess soil so you can see where the roots and shoots naturally separate.
  4. Using your hands, a hori hori knife, or clean pruners, divide the clump into sections, each with a few healthy stems and intact roots. Upright types can be split into two to four sections of equal size, creeping types can be divided into sections of up to a foot in diameter.
  5. Replant each division as soon as possible into well-draining soil with a pH between 6.0 and 7.0. If you’re potting up your divisions, use a succulent potting mix.
  6. Water in your newly planted divisions and keep the soil evenly moist until they become established and start to put out new growth.

Once established, you can care for them as you would mature stonecrop plants.

Divide and Conquer

Sedum is one of the easiest perennials to divide, making it a low-risk way to refresh your plantings and stretch your gardening budget.

A close up top down image of the colorful yellow and dark pink flowers of caucasian stonecrop.

Whether you’re tidying up overgrown clumps or adding coverage to new areas, your sedum will reward you with years of vibrant growth.

Are you growing these succulents? Have you divided your plants? Share your tips – and any burning questions – in the comments section below!

And for more information about growing stonecrop in your landscape, have a gander at these guides next:

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About

As a native Missourian, Joe Butler grew up exploring midwestern forests and landscapes. Holding a BS in Plant Sciences from the University of Missouri-Columbia, Joe’s horticultural experiences include home gardening, landscaping, botanical garden work, and plant virology. When he’s not writing about or working with plants, Joe can be found buried in a book, performing stand-up comedy, or eating nutritionally concerning amounts of peanut butter.

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