How to Prune Herbs: Basil, Mint and Tulsi That Grow Back Bushier
How to prune herbs so they grow back bushier is one simple rule: cut or pinch each stem just above a pair of leaves, and never take more than a third of the plant at once. Two new shoots grow from that point, so every snip doubles the stems. Pinch off flower buds on basil and tulsi to keep the leaves coming, cut mint right back when it gets straggly, and trim curry leaf at the top to make it branch. Below is where to cut, why plants go leggy, and a weekly routine that takes five minutes.
The rules in one look
- Where: just above a pair of leaves (a node), never mid stem
- How much: one third of the plant at a time, at most
- Basil and tulsi: pinch flower spikes as soon as they show
- Mint (pudina): harvest often; cut the whole pot back to 5 cm when it goes woody
- Curry leaf: pinch the growing tip to make it branch
- Tool: clean scissors or your fingernails; no tearing
Prefer to listen? This post as a 1 min video · Watch the video
Why is my basil so leggy?
A leggy herb is tall, thin and bare at the bottom with a few leaves on top. Two things cause it. First, low light: the plant stretches towards the window, spacing its leaves far apart. Second, no pruning. Every herb stem has a growing tip that makes a chemical signal telling the buds below to wait. As long as the tip is there, the plant puts its effort into growing upwards on one stem. Remove the tip and those waiting buds wake up and grow sideways. That is the whole science of a bushy herb.
Did you know? Each pair of leaves on a basil or mint stem hides two tiny buds tucked where the leaf meets the stem. You can often see them with your eye if you look closely: they look like miniature leaves already folded and waiting.
Where exactly should you cut?
Picture a basil stem as a ladder. Each rung is a node, where a pair of leaves comes out. Follow the stem down from the top, count two or three rungs, and cut about half a centimetre above a rung. Do not leave a long bare stump above the leaves; it simply dries and rots back. Do not cut so close you damage the tiny buds.
The one cut that turns a stem into a bush
Always cut just above a pair of leaves. The two little buds at that node each grow into a new stem, so one stem becomes two. Two weeks later, cut each of those above their own leaf pair and you have four. Do this from the time the plant is about 15 cm tall and a single stalk turns into a round, leafy bush within a couple of months. Picking only the big bottom leaves does the opposite: it strips the plant and leaves the tip to race upwards.
How to prune basil and tulsi
- Start early. When the young plant has three or four pairs of leaves, pinch off the top pair with its tip.
- Harvest from the top. Whenever you want leaves, take stem tips, cutting above a leaf pair, rather than plucking single leaves from below.
- Watch for flowers. Basil flower spikes and tulsi manjari appear at stem tips. Pinch them off with a couple of leaves beneath, as soon as you see them.
- Keep a third rule. Never take more than a third of the leaves in one week.
- Feed after a big cut. A small handful of compost helps the plant regrow quickly.
Our tulsi growing guide covers seeds, cuttings and winter care in more detail.
Should you remove tulsi flowers?
For more leaves, yes. Once tulsi or basil flowers and sets seed, the plant considers its job done. Leaf growth slows, leaves get smaller and the stems turn woody. Removing the spikes keeps it in leafy mode for months longer.
There is one good reason to let some flower. If you want seed for next year, leave two or three spikes on one healthy plant late in the season, around October in the plains. Let them dry brown on the plant, then rub them over a paper to collect the tiny black seeds. Bees love the flowers too, which helps any tomatoes or chillies nearby. Tulsi also slows down in a cold Punjab or Delhi winter whatever you do, so lighter pruning from December to February is kinder.
How to harvest mint so it keeps growing
Mint is the easiest herb to prune because it wants to be cut. Snip stems 2 or 3 leaf pairs down, right above a node, and new shoots pop up in a week. Harvest often, even if you just add the leaves to chai or raita.
By late summer, a pot of mint often looks tired: long woody runners, tiny leaves, maybe rust spots. Give it a hard cut back. Cut every stem down to about 5 cm above the soil, scratch some compost into the top, water well and put it in morning sun. Within two to three weeks fresh, soft growth returns. Our pudina in a pot guide explains repotting its crowded roots.
How to prune curry leaf (kari patta)
Left alone, a curry leaf plant becomes one tall pole with leaves only at the top. Pinch out the growing tip when it is 30 to 45 cm tall, and it will branch from the leaf joints below. Harvest by cutting whole leaf stalks (the stem that holds many little leaflets) from branch tips rather than stripping leaflets. Do the main shaping in spring, February to March in the plains, when it is about to grow fast; avoid heavy cuts in winter when it sulks. More on yellow leaves and feeding is in our curry leaves growing guide.
A weekly five minute herb routine
| Herb | Every week | Every month or season |
|---|---|---|
| Basil, tulsi | Pinch tips above a leaf pair; remove flower spikes | Lighter cuts in winter; let a few flower in autumn for seed |
| Pudina | Harvest stem tips | Hard cut back to 5 cm when woody, usually once or twice a year |
| Curry leaf | Harvest stalks from branch tips | Pinch the main tip in spring to make it branch |
| Dhania, methi | Snip outer leaves | Resow every 2 to 3 weeks; they do not regrow forever |
Busy? Then do it whenever you cook. Cutting tips for the pot is pruning. If you miss a week or two and see flowers, just pinch them off with an extra pair of leaves; the plant will recover. In the plains, keep big cuts out of May and June heat and do them in the cooler evening. In humid coastal cities, cut a little more often so air moves between stems.
Myth: pruning hurts the plant, so take only a few leaves
The reverse is true for soft herbs. Regular tip cutting is what makes them full and productive; timid plucking of single bottom leaves leaves a bare stalk. The real harm comes from taking more than about a third at once or cutting in the middle of a heatwave. For more on the eight herbs worth growing, see our balcony herb garden guide.
Use clean scissors and wash harvested leaves before eating. If you spray anything for pests, use only products labelled for edible plants, follow the label, and wait the stated time before harvesting. Keep sprays, and pots on high ledges, away from children and pets. Empty saucers under pots so standing water does not breed dengue mosquitoes.
Herb pruning questions
How do you prune basil?
Cut each stem just above a pair of leaves, starting when the plant has three or four leaf pairs. Pinch off any flower spikes and never remove more than a third of the plant at once.
How do I harvest mint so it keeps growing?
Snip stems above a leaf pair rather than pulling leaves, and harvest often. When it turns woody, cut the whole pot back to about 5 cm and add compost.
Should I remove tulsi flowers?
Yes, if you want more leaves, because flowering slows leaf growth. Leave a few spikes on one plant in autumn if you want to save seed.
Why is my basil leggy?
It is either short of light or has never been pruned. Move it to more sun and cut the tall stems back above a leaf pair to force side shoots.
How do I make herbs bushy?
Pinch the growing tips regularly, always just above a pair of leaves. Each cut makes two new stems.
Where do you cut herbs when harvesting?
About half a centimetre above a node, the point where leaves join the stem. Avoid leaving bare stumps.
How much of a herb plant can I cut at once?
No more than about one third. Mint is the exception and can take a full cut back to 5 cm once it is well established.
How do I prune a curry leaf plant?
Pinch the main tip when it is 30 to 45 cm tall to make it branch, and harvest leaf stalks from branch tips. Do the main shaping in spring.
Will basil grow back after cutting?
Yes, if you cut above a leaf pair and leave enough leaves below. Cut to bare stalk, and it often will not.
Can I prune herbs in summer?
Light harvesting is fine, but avoid big cuts in a heatwave. Do heavy pruning in the cooler months or late evening.
More easy kitchen garden guides are in Zero-Waste Kitchen.