When is the best time of year to divide my plants?

The absolute best time is in the spring, right at the beginning of the growing season. The plant is full of energy and will recover from the shock of division much faster. You can also divide in summer, but try to avoid it in the fall and winter when the plant's growth is slow.

How often should I divide my houseplants?

It depends on the plant's growth rate. Typically, a healthy, fast-growing plant like a fern or Calathea might need dividing every 2-3 years, or whenever it becomes severely root-bound. Slower growers might only need it every 4-5 years, if at all.

My plant looks droopy and sad after I divided it. Is this normal?

Yes, a little bit of wilting or drooping is completely normal. This is called 'transplant shock.' The plant's roots have been disturbed and need time to recover. Keep it out of direct sun and ensure the soil stays lightly moist. It should perk back up within a week or two as the roots re-establish.

Do I need to use a knife to divide my plant?

Not always! If you can, it's best to gently tease the roots apart with your fingers. However, for plants with very dense, tangled root systems (like ferns) or tough rhizomes (like snake plants), a clean, sharp knife is often necessary to make a clean cut without tearing the roots excessively.

The Complete Guide to Dividing Houseplants: Refresh and Multiply

🪴 In This Guide 🪴

✂️ Start Here 🌿 Which Plants Can Be Divided? 🛠️ How to Divide Your Plant in 5 Steps 💚 Aftercare for Divisions

Anastasia Remeslo

A Note From Our Plant Expert

Hello, my dear plant friends! Anastasia here. There comes a time in every plant parent's life when you look at a beloved plant and realize it's... well, a bit too beloved. It's bursting out of its pot, looking crowded and maybe a little less vibrant than it used to.

When this happens, don't rush to buy a giant new pot! You have a golden opportunity to perform one of the most satisfying tasks in all of plant care: division.

Division is less like creating a new plant from a tiny cutting and more like helping a big, happy family move into a few new, comfortable homes. It's a fantastic way to manage your plant's size, rejuvenate its growth, and best of all, get more plants for free! Today, we'll walk through this simple process together.

🌿 Which Plants Can Be Divided?

This method works for plants that naturally grow in clumps or spread via underground runners (rhizomes), sending up multiple stems from the soil. You can't divide a plant with a single main stem, like a Fiddle Leaf Fig.

Top Candidates for Division

Sansevieria (Snake Plant): Sends up new "pups" from underground rhizomes that are easy to separate.
Calathea (Prayer Plant) & Maranta: These grow in distinct clumps from the soil, making them easy to tease apart.
Ferns: Boston Ferns, Maidenhair Ferns, Bird's Nest Ferns, and compact clump-formers like Button Fern all divide well when mature. Creeping rhizome ferns like Blue Star Fern are also great candidates because the natural split points are easy to see.
Spathiphyllum (Peace Lily): Forms a thick clumping base that benefits from being thinned out.
Tradescantia spathacea (Boat Lily): Builds dense basal offsets that can be separated into ready-made new plants when the clump outgrows its pot.
Zamioculcas zamiifolia (ZZ Plant): The thick, potato-like rhizomes can be separated to create new plants.
Aspidistra (Cast Iron Plant): A slow grower, but its clumping nature makes division straightforward.
Chlorophytum comosum (Spider Plant): While you can pot up its "spiderettes," you can also divide the main mother plant.

A group of healthy houseplants that are ideal for division, including a Calathea, a Snake Plant, and a Boston Fern.

🛠️ How to Divide Your Plant in 5 Steps

Grab some fresh potting soil and a few new pots. This can get a little messy, so it's a great activity to do outdoors or on a covered surface.

Step 1: Unpot the Plant

Carefully remove the entire plant from its current pot. It helps to turn the pot on its side and gently squeeze or tap the sides to loosen the soil. Hold the base of the stems and gently slide the entire root ball out. If it's really stuck, you can run a butter knife around the inside edge of the pot.

Hands carefully sliding a large, root-bound plant out of its plastic nursery pot.

Step 2: Clean and Inspect the Roots

Gently shake and massage the root ball to remove as much of the old soil as possible. This allows you to get a clear look at the root structure. You'll be able to see the natural points where the plant has formed separate clumps or crowns.

Step 3: Separate the Clumps

This is the main event. Start by using your fingers to gently tease the root clumps apart. Often, a plant will separate into a few distinct sections quite easily.

If the roots are densely tangled, you may need to use a clean, sharp knife or a hori hori to make clean cuts through the root ball. The most important rule is to ensure each new division has a healthy share of both stems/leaves and roots. A division with lots of leaves but very few roots will struggle to survive.

A close-up of hands gently teasing apart the root ball of a Peace Lily into two distinct clumps.

Step 4: Prune the Roots (Optional)

Once you have your new divisions, inspect their roots. You can use your clean scissors to trim off any roots that are dead, mushy, or excessively long and circling. This encourages fresh, healthy new root growth.

Step 5: Repot in Fresh Soil

Pot each of your new divisions into its own appropriately sized container. Choose a pot that is just an inch or two wider than the new root ball. Using a pot that's too large can lead to root rot. Fill with fresh, appropriate potting mix, water them in thoroughly, and you're done!

Three smaller pots, each containing a new division from a parent plant, freshly potted in new soil.

💚 Aftercare: Helping Them Settle In

Your newly divided plants have just gone through a stressful surgery! A little transplant shock is normal. For the first few weeks:

Avoid Direct Sun: Place them in a spot with slightly less light than they are used to. This reduces stress while the roots recover.
Maintain Moisture: Keep the soil consistently moist, but not waterlogged. The roots need water to re-establish, but can't handle sitting in a swamp.
Hold the Fertilizer: Wait at least a month before fertilizing. The fresh potting mix has plenty of nutrients, and you don't want to burn the sensitive, recovering roots.

Soon, you'll be rewarded with new growth, a sign that your divisions have happily settled into their new homes.