Learning To Grow Catnip

Growing catnip (Nepeta cataria) can be an enjoyable experience for gardeners, herbalists, and cat owners.

This versatile herb, known for its lovely foliage, aromatic leaves, and alluring effect on feline friends, is relatively easy to grow and has several utilitarian and medicinal benefits.

Catnip is a fantastic addition to any garden or home because it is a natural treat for cats and a tasty complement to herbal drinks and gourmet meals.

In this comprehensive guide, we’ll go over the step-by-step process of growing catnip, from selecting the right location and preparing the soil to harvesting leaves and propagating plants.

In addition, we’ll go over essential maintenance tasks like watering, pest and disease control, and seed harvesting to keep your catnip plants healthy and productive throughout the growing season.

Whether you’re a first-time gardener hoping to try herb cultivation or an experienced green thumb looking to widen your horizons, this article will teach you everything you need to know about growing healthy catnip plants and reap their advantages.

learning to grow catnip

Choosing a location: 

Choosing the right location for cultivating catnip is crucial to its health and productivity. Catnip grows in direct sunlight. Locate an area of your garden or balcony that receives at least six hours of sunlight daily.

Furthermore, ensure that the soil drains well to avoid waterlogging, which can injure catnip plants in various ways, including root rot.

When growing catnip in a garden bed, consider the neighbouring plants and their sunshine requirements to minimise shading. Raised beds are also useful if your soil is dense or poorly drained.

When growing plants in pots, ensure the pot is at least 12 inches deep to allow the roots to expand. To guarantee optimal growth, use a high-quality potting mix that provides adequate drainage and aeration.

Preparing the soil.

Catnip needs nutrients to thrive, and soil preparation is essential. Catnip demands slightly alkaline soil with a pH ranging from 6.1 to 7.8. To check the pH of your soil, use a soil pH testing kit, which is available in garden centres.

Add pulverised limestone or wood ash to raise the pH if your soil is too acidic. If your soil is too alkaline, you can lower the pH by adding sulphur or acidic organic matter such as pine needles or composted leaves.

In addition to adjusting the pH, it is vital to improve soil drainage by adding organic matter like compost or well-rotted manure. This will help to loosen compacted soil and provide the nutrients required for plant growth.

Planting Seeds or Seedlings

Catnip can be grown from seeds or bought as seedlings from nurseries or garden centres. If you start from seed, place catnip seeds directly into prepared soil in the spring after your area’s last frost date. To guarantee the best seed-to-soil contact, scatter the seeds evenly and cover them with a thin layer of soil before gently watering.

Alternatively, start catnip seeds indoors 6-8 weeks before the latest expected frost date and then transplant the seedlings outside when the weather warms. To enhance germination, put the seeds in damp seed-starting trays and place them in a warm, sunny location or under grow lights.

Place seedlings 18 to 24 inches apart before transplanting them outside to ensure healthy growth and air circulation. Water the transplanted plants thoroughly to allow them to establish roots in their new surroundings.


Catnip plants require adequate moisture to remain healthy and vigorous. While catnip is very drought-tolerant once established, it is vital to keep the soil moist throughout the plant’s early growth stages to guarantee proper root development.

Water catnip plants deeply, allowing water to saturate the soil and into the root zone. Overhead irrigation can spread fungal diseases; thus, it is best avoided. Instead, use a soaker hose or drip irrigation system to water the plant gradually as it matures.

Monitor soil moisture often, especially during hot, dry weather, and adjust watering frequency to keep the soil moist but not waterlogged. Mulching around plant roots keeps the soil moist and the weeds at bay, needing less watering.


While catnip is a low-maintenance plant, some primary care can keep it healthy and productive. To ensure that catnip plants get the nutrients they need for development and flower production, use a balanced, slow-release fertiliser once or twice during the growing season.

Deadhead wilted flowers regularly to ensure they continue to bloom throughout the season. Remove any yellowed or damaged leaves to increase airflow and lower the risk of fungal infection.

Monitor the plants for signs of pests or diseases, such as aphids, spider mites, or powdery mildew, and take appropriate precautions. Many common garden pests can be controlled with insecticidal soap or neem oil, and proper spacing and airflow can help prevent fungal disease.

organic cut catnip


Harvesting catnip leaves at the right time is essential for maximising their potency and flavour. Catnip leaves are best picked just before the plant blossoms when the essential oils are most concentrated.

Cut the stems just above a set of leaves using clean, sharp scissors, leaving some foliage on the plant to promote regrowth. Harvest no more than one-third of the foliage at once to allow the plant to continue photosynthesizing and creating new growth.

Once collected, catnip leaves can be utilised fresh or dried for later use. A warm, dry location with adequate ventilation is excellent for drying catnip leaves, so bundle the stems and hang them upside down. After drying, separate the leaves from the stems and keep them in an airtight container away from light and heat to preserve their flavour and potency.

Managing Growth 

Catnip spreads quickly and can be invasive if not properly treated. Put your catnip patch in containers or raised beds to prevent overcrowding and control your catnip patch.

Alternatively, combine catnip with other vigorous herbs or perennial plants, such as mint or lavender, to help restrict its growth. Removing extra growth and splitting overcrowded clumps can also help prevent catnip from taking over your landscape.

If you’re growing catnip in a container, prepare to repot the plants after they outgrow their current pots. You can also prune the plants regularly to keep them compact and neat. Remove any dead or lanky growth to promote bushy new growth.

Enjoying the benefits 

Once you’ve grown catnip, you can enjoy its many benefits in the garden and beyond. Catnip is a famous cat treat but can also be used in herbal drinks, sachets, and recipes.

To make catnip tea, soak a teaspoon of dried catnip leaves in boiling water for 5-10 minutes, then drain and serve. Catnip tea has a mild, earthy flavour and is widely used for its calming and relaxing properties.

You may also use fresh or dried catnip leaves to produce homemade cat toys, sachets, and perfumes. Sew dried catnip leaves into a small fabric pouch or combine them with scented herbs such as lavender or chamomile to make a delicious herbal combination.

In the garden, catnip can attract beneficial pollinators such as bees and butterflies, making it a perfect addition to any pollinator-friendly environment. Its strong scent can also deter pests such as aphids, squash bugs, and flea beetles, making it an excellent companion plant for vegetables and other sensitive crops.

By following these steps, you can successfully grow catnip and get its myriad benefits in your garden and home. Whether you’re a cat lover trying to offer your feline pet a natural treat or a herbalist investigating catnip’s culinary and medical applications, growing this versatile herb is a rewarding experience that will please and satisfy you.


Propagation is the process of producing new catnip plants from existing ones. Catnip can be propagated in various ways, including division, stem, and root cuttings.

Established catnip plants should be divided every 2-3 years, in the spring or autumn, to prevent overcrowding and refresh them. Before dividing the root ball into smaller pieces, gently remove the plant from its soil with a sharp knife or spade, ensuring that each split contains enough roots and foliage. Replant the divisions in prepared soil or containers and water thoroughly to help them settle.

Take stem cuttings from mature, healthy catnip plants in the spring or early summer. Cut 4-6 inch long stems from the parent plant, just below a node, with a clean, sharp knife. To promote root formation, soak the cut end of the cutting in the rooting hormone after removing the bottom leaves.

Soak the cuttings in potting soil before placing them in a container. Keep the soil evenly moist, and spray the cuttings often to prevent them from drying until roots develop.

Root cuttings can be taken from dormant catnip plants in the autumn or early spring. Using a sharp shovel or garden fork, carefully remove a part of the plant’s root system, including many thick, strong roots.

Cut the root into 2-3 inch pieces, making a clean cut below each node. Plant the root cuttings horizontally in a pot filled with wet potting mix, then top with a thin layer of earth. Keep the soil moist and place the pot in a warm, light location until new shoots emerge.


Catnip plants in colder climates may die back to the ground or go dormant throughout the winter. Proper overwintering strategies can help protect the plants and keep them alive until the following spring. 

Mulching: To prevent soil freezing and preserve plant roots from winter, spread an organic mulch over plant bases in late October. Examples include straw, shredded leaves or pine needles. Mulching also helps to maintain soil moisture and prevent weed growth, which improves plant health overall. 

Cutting Back: Cut back the stems of catnip plants to a few inches above ground level in late autumn or early winter to eliminate harm or decaying leaves and encourage the regrowth of new growth during the spring. To prevent pests and illnesses from spreading, dispose of the clipped material or compost it. 

Protective Coverings: In places with frigid temperatures or heavy snowfall, try covering catnip plants with a layer of frost cloth or floating row cover to shield them from the cold and other severe weather. Secure the coverings with pegs or rocks to keep them from flying away in the wind. 

By following these measures to overwinter your catnip plants, you can help secure their survival while enjoying strong, vivid growth year after year. 

Pest and Disease Control 

While catnip is generally resistant to pests and diseases, it can be impacted by typical garden pests such as aphids, spider mites, powdery mildew, and fungal infections. 

Pest Control: Check catnip plants regularly for signs of pest infestation, such as twisted foliage, yellowing leaves, or the appearance of insects. 

Many common garden pests, such as aphids and spider mites, can be controlled using insecticide soap, neem oil, or horticultural oil. 

Follow the manufacturer’s directions and thoroughly coat the foliage to ensure optimal effectiveness. 

Disease Control: Powdery mildew and leaf spots are fungal infections that can be reduced by preventative measures such as correct plant spacing, good air circulation, and avoiding overhead watering. 

If fungal diseases emerge, remove and dispose of the afflicted plant material immediately to prevent spore dissemination. Fungicides containing sulphur or copper can be applied to prevent fungal diseases; however, follow the label directions carefully to avoid plant harm. 

These pest and disease control strategies will help your catnip plants stay healthy and thrive throughout the growing season. 

Harvesting seeds. 

If you wish to save seeds from your catnip plants for later use or to share with friends and gardeners, you must harvest them at the appropriate time and store them appropriately to ensure their viability. 

Seed Harvesting: Let catnip plants blossom and set seed in late summer or early autumn. As the seed heads grow, they become brown and dry. Harvest the seed heads by cutting them from the plants and storing them in a paper bag or container to catch any seeds that may fall out. 

Seed Cleaning: After harvesting the seed heads, let them dry thoroughly in a warm, well-ventilated place for 1-2 weeks. After drying, gently crush the seed heads to release the seeds, then sift them through a fine mesh sieve or seed screen to eliminate any debris or chaff. 

Seed Storage: Once cleaned, place the catnip seeds in a container and keep them in a cool, dry place. This could be a glass jar or a resealable plastic bag. Keep track of your seeds by labelling the container with the date and variety. Catnip seeds that have been adequately preserved can last 1-2 years or more, allowing you to grow healthy plants season after season. 

Following these steps to harvest and store catnip seeds, you can have this tasty herb on hand for years.

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