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Growing Mint
How to keep mint growing in a pot

This article talks about growing mint by cutting / striking / cloning. There are many types of mint. The mint mentioned here is shown in the picture. Perhaps it is "common" type with scientific name Mentha cordifolia. Its leaf has obtuse tip. The cut surface of its stem is in square shape. Even this type further breaks down to two sub-types: green stem or purple stem.

Mint leaves can be used for garnishing, to make mint soup (or soap), to be added into drinking water and watermelon or to make mint sauce. Eating mint can alleviate stomach trouble. Rubbing some mint leaves on the forehead may relieve headache. A flourishing pot of mint can be a decoration with nice smell too. Even pet dog or cat likes to munch on the mint sometimes. Due to its usefulness, it should be a household plant kept permanently.

The prerequisite is having at least one hour of direct sunlight daily. If there is no access to direct sunlight, it is better not to try growing mint. Without direct sunlight, it may survive for a few months but will die out eventually because the runners or stolons do not develop well to propagate offspring.

Cutting
A cutting from a sprig that has three nodes.

Cutting

Mint stem contains a few nodes and one terminal bud. Each node has a pair of leaves. Terminal bud is the tip on top that contains typically two pairs of small new leaves. Root can grow from a node.

To start growing mint, just utilize the sprigs of mint bought from market. Make sure the sprigs are vibrant when buying. The cutting or clipping should contain at least two nodes with healthy leaves. Leave one larger leaf near the terminal bud intact as a indicator on how well the cutting will be doing when rooting and as a food source for the cutting. It will be easier for the cutting to grow if the terminal bud at the tip of the stem are left intact. The two nodes at the bottom will be used for rooting. Do not hesitate to cut away nodes without leaves or with yellow / dead leaves because possibly the nodes are too old to root. Preferably the cut should be just above the node to be left behind instead of just below the bottommost node of a cutting. By doing this, there is a bit more stem reserve of food to be converted to energy for the rooting. Pinch away leaves for the kitchen. It is faster to pick the leaves with finger than to snip them. Avoid hurting the nodes when clearing the leaves. If the big leaves are not cleared away, the cutting may lose moisture fast by evaporation through the leaves and may not survive.

Roots
A rooted cutting.

Potting

Choose a wide pot instead of deep pot so that mint runners will have space to propagate. Mint roots do not need to go deep so it is a waste to use a deep pot. If possible, do not buy pot but make own pot by utilizing some junks.

Potting soil should be fluffy. Test the soil drainage. If the water drips out slowly instead of flowing out, the soil is not suitable. Water should not puddle up too when watering. Another way of testing is to clench the soil in hand and if the soil clumps up, it is not fluffy. This is very important because the cutting will not survive in soil that easily packs down. Soil compaction may contain too much moisture, causing the cutting to rot. Rooting will not develop without aeration in the soil.

Stand the cuttings in water for at least one hour for them to absorb water. Clearing the leaves for kitchen for a batch of springs takes some time so the cuttings may become dehydrated. When they are stiff, that means they have absorbed enough water.

Water the soil if the it looks dry. Plant the cutting by covering one or a few nodes in the soil depending on the length of the cutting. Pack the soil around the base of the cutting. The two small leaves on the terminal bud (the tip of the cutting) must not be dirtied by soil. The cutting should be planted immediately after being taken out of water for the cutting to stay hydrated. So pot by taking the cuttings one by one from water. Avoid direct sunlight for the first 12 hours so it is better to do the planting at dusk. After potting, put the pot at a spot where there is direct sunlight only in early morning. Cuttings may not survive if there is no direct sunlight at all. Once the cuttings start the grow strong, the pot can have direct sunlight all day long. Water the plant daily but if the soil is moist for the day, do not water it otherwise the cuttings may die. Fertilize it fortnightly with non-chemical fertilizer. Get free fertilizer such as fresh urine. Loosen the soil when it is hard.

Some cuttings may not grow and that is alright and natural. If every twig that drops on the ground does not rot, there will be no nutrient in the soil for plants to grow.

Keep growing

After a few weeks of growing, when each stem has a few nodes with healthy leaves, it is time to harvest. For mint planted in a pot, do not expect that one time of planting lasts for a long time without harvesting. It defeats of purpose of growing mint if it is not harvested. Harvesting stimulates growing. If the mint is not harvested, it will grow too long and topple. The stems if not harvested will finally get old and die because nutrient cannot be channeled to the tip of the stem due to long stem. When the stems get old and wither, the pot of mint does not look pretty. A lush pot of mint shrub has aesthetic value.

Harvest by cutting the stem. Leave the nodes with obvious axillary buds (having tiny leaves) on the plant because those buds will grow into new stems. If there is no obvious axillary bud, leave one node with healthy leaves on the plant. In the first harvest, the produce is very little.

The harvested cuttings can be planted after the leaves have been pinched away. For a stem with blossom at the tip if any, the blossom should be snipped away otherwise the cutting will not grow.
Posted: 2013-08-05; updated: 2015-05-23 by Ong Seng Aun.
I categorize this article under Homemaking. Other articles are accessible from home page.
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