There is a special kind of joy in growing something from what most people would throw away.
Can you grow basil from store-bought basil stems? Yes — if the stems are still green and firm, you can root them in a glass of water in about one to two weeks, then plant them in soil and grow full new basil plants. Here is exactly how I do it, step by step, with photos from my own balcony.
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A few basil stems from the grocery store do not look like much at first. They are usually bought for dinner, maybe for pesto, pizza, pasta, or a fresh summer salad. But if the stems are still green and healthy, they can become much more than a one-time ingredient. With a glass of water, a bright spot, and a little patience, those same stems can turn into new basil plants.
This is one of my favorite basil-growing tricks. It is simple, inexpensive, and surprisingly rewarding. Our family uses a lot of basil, especially for pesto and pizza, so having extra plants around is always useful. And the best part is that you do not need seeds or a nursery plant to start. Sometimes, a regular bunch of fresh basil from the supermarket is enough. (Already have a basil plant at home? Then my guide on growing basil from cuttings uses the same idea with fresh cuttings.)
Start with Fresh, Healthy Basil
The fresher the basil, the better your chances of success.
When choosing stems, look for basil that still feels firm and alive. The stems should be green, not black or mushy, and the leaves should still look fresh. A little softness is fine, but if the basil already looks tired, dry, or slimy, it may not root well.
I like to choose stems that are long enough to work with and have a few sets of leaves. Along the stem, you will see small points where the leaves grow. These are called nodes, and they are the important part of this whole method. Roots can grow from those points once the stem sits in water.
Prepare the Stems Before Rooting
Before placing the basil in water, remove the lower leaves from each stem. You want the bottom part of the stem to be clean, because any leaves that sit in water can rot quickly.
Do not throw those leaves away. Use them in your cooking, add them to a salad, or save them for a small batch of pesto.
After removing the lower leaves, try to leave a few exposed nodes along the lower part of the stem. Then make a fresh angled cut at the bottom. I usually cut just below a node when possible, because that gives the cutting a clean fresh end and a good place to start rooting.
At this point, each cutting should have:
- A clean lower stem
- A few exposed nodes
- Some healthy leaves left at the top
- A fresh cut at the bottom
That is all you need before moving the stems into water.
Root the Basil in Water
Place the prepared basil stems in a clean glass or jar with water. The lower nodes should be under the water, but the leaves should stay above it.
This is where the waiting begins.
Keep the jar in a bright spot, but not in strong direct sun. A bright windowsill, kitchen counter, or protected balcony can work well. The cuttings need light, but before they have roots, harsh sun can stress them.
Change the water every few days to keep it fresh. You do not need to do anything complicated. Just check the jar, refresh the water, and watch what happens.
After about one to two weeks, you should start seeing little white roots growing from the stems. It always feels exciting, even when you know it is coming. The stems that were almost kitchen scraps suddenly look like real little plants.
One small tip: if your stems send up flower spikes while rooting, like mine did, pinch them off. Flowering takes energy the cutting should be spending on roots and new leaves.
When to Move Basil Cuttings into Soil
You do not need to wait forever before planting. Once the roots are a few inches long and look strong enough, the cuttings can move into soil.
If you leave basil in water for too long, the roots can become very long and tangled. It will still work, but planting becomes a little more delicate. I prefer moving them once the roots are developed, but not overly crowded.
Handle the cuttings gently when taking them out of the water. New roots are soft and can break easily.
Planting the Rooted Basil
Choose a pot with drainage holes. The size depends on how many basil cuttings you want to plant. If you are planting several stems, use a wider pot and give them some room to grow.
Basil likes soil that holds some moisture but still drains well. A regular potting mix with some added perlite works nicely because it keeps the mix lighter and airier. If you like mixing your own, here is my homemade potting mix recipe.
Before planting, make holes in the soil. This helps you place the roots inside without pushing or breaking them.
Plant each basil cutting deep enough so the roots and the lower exposed nodes are covered with soil. The leaves should stay above the soil surface. Gently cover the roots, press the soil lightly around the stem, and let the plant stand upright.
After planting, check the lower leaves. If any leaves are touching the soil or sitting too close to it, remove them. Basil can be sensitive to moisture around the base of the plant, and keeping the lower part clean helps reduce the risk of disease.
Watering After Planting
Water the basil well after planting. This helps the soil settle around the roots and gives the cuttings a smoother transition from water to soil.
For the first few days, keep the soil lightly moist. The basil may look a little tired at first, and that is normal. It just needs time to adjust.
Once the plant settles in and starts growing again, water when the top layer of soil begins to dry. Basil enjoys consistent moisture, but it does not like sitting in soggy soil.
How to Make Basil Grow Fuller
After the basil starts growing, do not let it become one tall, thin stem.
To encourage a fuller plant, pinch or cut the top growth just above a pair of leaves. From that point, the plant can send out new side shoots. This is how you turn a few rooted stems into a bushier basil plant.
This is also the best way to harvest basil. Instead of picking only single leaves from the bottom, cut from the top above a node. The plant will respond by branching out and producing more growth.
The more you harvest basil correctly, the better it usually grows. And if your plants do well, at the end of the season you can even collect and save basil seeds for next year — or try the same water-rooting trick with mint.
FAQ
Can you grow basil from store-bought basil stems?
Yes. Fresh store-bought basil stems can root in water and grow into new basil plants, as long as the stems are still green, firm, and healthy.
How long does basil take to root in water?
Basil usually starts growing roots in about one to two weeks. Warmer temperatures and fresh stems can help the process move faster.
Where should I cut basil stems for propagation?
Make a fresh angled cut near the bottom of the stem, ideally just below a node. Nodes are the points where leaves were attached, and they are where new roots can grow.
Should basil leaves sit in the water?
No. Keep the leaves above the water line. Leaves sitting in water can rot and make the water dirty.
When should I plant basil cuttings in soil?
Plant the cuttings once they have several healthy roots. The roots should be long enough to handle planting, but not so tangled that they are difficult to separate.
Can I plant several basil cuttings in one pot?
Yes, you can plant several cuttings together, but give them enough space. Basil grows better with airflow and room to branch out.
How do I make my basil plant bushier?
Pinch or cut the top growth just above a pair of leaves. This encourages side shoots and helps the basil grow fuller instead of tall and leggy.
