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Dividing basil plants is a straightforward way to multiply your herb garden and keep your plants healthy.
When you divide basil plants, you’re essentially taking one mature plant and splitting it into two or more smaller ones, each with its own root system.
This is a fantastic method to get more basil for pesto, salads, and cooking without having to buy new seeds or seedlings.
If you’ve ever wondered how to divide basil plants successfully, you’re in the right place.
Dividing basil plants isn’t complicated, but doing it at the right time and with the right technique makes all the difference.
In this post, we’ll walk through exactly how to divide basil plants, when to do it, and the best ways to care for your new divisions.
Let’s dig in and get your basil multiplying.
Why Divide Basil Plants?
Dividing basil plants is a smart move for several reasons, and understanding these benefits will make you more confident when you divide basil plants in your own garden.
1. More Plants for Free
The most obvious reason to divide basil plants is to get more basil without spending extra money.
One healthy basil plant can become two, three, or even four plants depending on its size.
This is especially handy if you’re planning a larger herb garden or want to share basil with friends and neighbors.
When you divide basil plants, you’re essentially cloning the parent plant, so you know exactly what you’re getting.
2. Prevents Overcrowding
Basil plants that are too close together compete for water, nutrients, and sunlight.
When you divide basil plants that have become crowded, you give each new division more room to grow.
Better airflow around your basil also reduces the risk of fungal diseases like powdery mildew.
So dividing basil plants isn’t just about multiplying, it’s about keeping your remaining plants healthier and more productive.
3. Rejuvenates Tired Plants
Sometimes a basil plant gets leggy or woody at the base, especially if it’s been growing for a long while.
When you divide basil plants, you often remove the older, less productive parts and keep the vigorous new growth.
This can kickstart fresh leaf production and give you a second harvest window.
Dividing basil plants can essentially give your herb garden a new lease on life.
When to Divide Basil Plants
Timing is crucial when you want to divide basil plants because doing it at the wrong moment can stress them too much.
Best Time of Year
The ideal time to divide basil plants is in the spring or early summer when they’re actively growing.
This is when basil has the most energy to recover from the shock of being split apart.
Avoid dividing basil plants during the hottest part of summer or during a heatwave, as the stress can be too much.
Also, don’t divide basil plants in the fall when they’re slowing down for the season, as they won’t have enough time to establish before cold weather hits.
Look for These Signs
So, how do you know when your basil is ready to be divided?
First, the plant should have multiple stems emerging from the base.
If you see one single stem, it’s not a good candidate for division.
Second, the root ball should be dense and fill the pot or the ground area where it’s planted.
You can gently lift the plant from its pot to check the roots.
If the roots are circling the bottom of the pot, that’s a clear sign you can divide basil plants.
Ideally, you want to divide basil plants when they are about 6 to 8 inches tall and have several sets of true leaves.
Step-by-Step Guide on How to Divide Basil Plants
Now for the main event: how to divide basil plants properly.
Follow these simple steps, and you’ll have multiple basil plants in no time.
Step 1: Water Your Basil Thoroughly
The day before you plan to divide basil plants, give them a deep watering.
This hydrates the roots and makes them more pliable, reducing the chance of breakage.
Moist soil also holds together better than dry soil, making it easier to separate the root ball.
Step 2: Gently Remove the Plant from Its Pot
Carefully tip the pot sideways and slide the basil plant out.
If the plant is in the ground, use a garden fork to loosen the soil around it before lifting.
Once it’s out, shake off the excess soil so you can see the roots clearly.
This visibility is key when you divide basil plants, as you need to see where to make your cuts.
Step 3: Separate the Root Ball
With your hands, gently tease apart the root ball into two or more sections.
Each section should have a good amount of roots and at least a couple of healthy stems.
If the roots are tightly tangled, use a clean, sharp knife to cut through them.
Don’t worry if some roots break during this process, basil is quite resilient.
Just be as gentle as you can when you divide basil plants.
Step 4: Trim Damaged Roots and Leaves
Before replanting, trim away any broken, mushy, or overly long roots.
Also, pinch off any damaged leaves.
This reduces the amount of foliage the roots need to support while they recover.
It’s a helpful tip when you divide basil plants, as it balances the top growth with the root system.
Step 5: Replant Your Divisions Immediately
Don’t let your new basil divisions sit out in the sun while they dry out.
Plant them right away in pots with fresh, well-draining potting mix, or directly into prepared garden soil.
When you divide basil plants and replant, make sure each division is at the same soil depth as it was before.
Water them thoroughly after planting to settle the soil around the roots.
Caring for Your Newly Divided Basil Plants
After you divide basil plants, they need a little extra TLC to bounce back quickly.
Provide Some Shade Initially
For the first few days after dividing basil plants, keep them out of direct, harsh sunlight.
Place them in a spot with bright, indirect light or partial shade.
This helps reduce transplant shock and gives the roots time to establish.
After about a week, you can gradually move them back into full sun.
Keep the Soil Consistently Moist
Water your newly divided basil plants regularly to keep the soil evenly moist, but not waterlogged.
Basil hates to dry out completely, but it also dislikes sitting in soggy soil.
Check the top inch of soil daily, and water when it feels dry to the touch.
A consistent watering schedule is essential after you divide basil plants.
Feed Them with a Gentle Fertilizer
About two weeks after dividing basil plants, you can give them a boost with a diluted liquid fertilizer.
Use a balanced fertilizer or one high in nitrogen to encourage lush leaf growth.
Don’t overdo it, as too much fertilizer can burn the tender new roots.
A light feeding will help your divided basil plants grow strong and vigorous.
So, How to Divide Basil Plants Like a Pro?
Dividing basil plants is a simple, rewarding process that any gardener can master.
When you divide basil plants, you get more herbs for free, prevent overcrowding, and rejuvenate older plants.
The best time to divide basil plants is in spring or early summer when they’re growing actively.
And the process involves watering, gentle separation, trimming, and immediate replanting.
With proper care like shade, consistent moisture, and light feeding, your new basil divisions will thrive.
So go ahead and divide basil plants in your garden, and watch your supply of fresh, fragrant basil multiply in no time.
Happy gardening, and enjoy your bounty of delicious basil!