How To Plant Catnip Seeds [ Full Guide ]

Catnip, scientifically known as Nepeta cataria, is a versatile and easy-to-grow herb that is enjoyed by both cats and humans alike. In this comprehensive guide, we will delve into the process of planting catnip seeds. From understanding the benefits of growing catnip to selecting the right time and location for planting, preparing the soil, selecting quality seeds, and the step-by-step instructions for planting, this guide will equip you with the knowledge and tips to successfully cultivate catnip in your garden.

Understanding The Benefits Of Growing Catnip

Before jumping into the details of planting catnip seeds, it is essential to understand the various benefits of growing catnip. Catnip serves as more than just a playful delight for feline friends; it also boasts medicinal properties and is a valuable addition to any herb garden.

Benefits For Cats

Catnip is known to induce a range of behaviors in cats, including rolling, rubbing, and playful antics. This response is due to an essential oil in the leaves and stems called nepetalactone, which triggers a euphoric reaction in cats. This herb can be a helpful tool for cat owners, especially when used in moderation, to encourage play and relieve stress in their pets.

Medicinal Benefits

Beyond its appeal to feline companions, catnip also has several medicinal benefits for humans. It has been traditionally used to make herbal teas that aid in digestion, alleviate nervousness, and provide relief from cold and flu symptoms. The herb also exhibits natural insect-repelling properties, making it a valuable addition to your garden.

Choosing The Right Time And Location To Plant

The success of growing catnip starts with selecting the right time and location for planting. Catnip thrives in sunny locations and well-drained soil. It’s a hardy perennial that can grow in various climates, making it a suitable plant for many regions.

Time For Planting

Catnip seeds can be planted either in the spring or the fall, depending on your climate zone. In cooler climates, it is best to plant catnip seeds after the last expected frost in spring. However, in warmer regions, catnip can also be planted in the fall.


When choosing a location for planting catnip, opt for a spot that receives at least six hours of sunlight daily. Additionally, ensure that the area has well-draining soil, as catnip does not thrive in waterlogged conditions.

Preparing The Soil For Planting

Proper soil preparation is crucial for the successful growth of catnip. Catnip thrives in soil that is slightly alkaline and well-drained. Here are several steps to ensure your soil is adequately prepared for planting catnip seeds.

Testing The Soil

Before planting catnip, it’s beneficial to test the soil’s pH level. Catnip prefers a pH level between 6.1 and 7.8. You can obtain a soil test kit from your local garden center or conduct a soil test through a certified laboratory to determine the soil’s pH and nutrient levels.

Amending The Soil

Based on the results of the soil test, amend the soil as necessary to achieve the ideal pH level for catnip. If the soil is too acidic, add lime to raise the pH. Conversely, if the soil is too alkaline, incorporate organic materials such as peat moss to lower the pH level.

Soil Drainage

In addition to pH levels, soil drainage is critical for catnip cultivation. To improve drainage, consider incorporating organic matter, such as compost or well-rotted manure, into the soil. This will help maintain adequate moisture while preventing waterlogging.


Once the soil is prepared, consider laying a layer of organic mulch around the planting area. Mulch helps regulate soil moisture, suppress weed growth, and protect the roots of young catnip plants.

Selecting And Purchasing Quality Catnip Seeds

Selecting high-quality catnip seeds sets the foundation for successful cultivation. When purchasing catnip seeds, there are several factors to consider, ensuring that the seeds are viable and capable of germination.

Seed Supplier

Opt for reputable seed suppliers or nurseries when purchasing catnip seeds. This ensures that you are obtaining high-quality, viable seeds that are free from contaminants and are correctly labeled.


Check the expiration date or the date of harvest on the seed packet. Fresh seeds have a higher germination rate, increasing the likelihood of successful plant growth.


Catnip seeds may come in different varieties, each with its unique characteristics. Consider your preferences and the intended use of the catnip when selecting a variety. Common varieties include ‘Cat”s Meow”, “Six Hills Giant”, and ‘Walker”s Low”.

Organic Vs. Conventional Seeds

Depending on your gardening practices and preferences, you may opt for organic catnip seeds. Organic seeds are free from synthetic chemicals and are produced through environmentally friendly methods.

Quick Answer: How To Plant Catnip Seeds

Now that you have an understanding of the benefits of growing catnip, as well as the essential considerations for planting, it’s time to dive into the step-by-step guide for planting catnip seeds.

Step 1: Germinating Seeds

To germinate catnip seeds, you can start them indoors in seed trays or sow them directly into the prepared soil. If starting indoors, sow the seeds in a well-draining seed starting mix and lightly cover them with a thin layer of soil. Keep the soil consistently moist and place the tray in a warm location with ample sunlight.

Step 2: Transplanting Seedlings

Once the catnip seedlings have developed several sets of true leaves and the frost has passed, transplant them into the garden bed. Dig holes that are slightly wider and deeper than the root ball of the seedlings. Space the plants about 18 to 24 inches apart to allow for adequate airflow and growth.

Step 3: Watering

After transplanting, water the seedlings thoroughly. Catnip prefers consistently moist soil, so ensure that the plants receive ample water, especially during dry periods. However, avoid overwatering, as catnip does not tolerate waterlogged conditions.

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Step 4: Maintenance

Regularly monitor the catnip plants for signs of pests or diseases. Applying a layer of organic mulch around the plants can help suppress weeds and retain moisture. Additionally, consider fertilizing the plants with a balanced, all-purpose fertilizer once or twice during the growing season.

Step 5: Harvesting

Catnip can be harvested once the plants have reached a mature size, usually in the late spring or early summer. Cut the stems just above a leaf set, using shears or scissors. You can then dry the harvested catnip by hanging it in a well-ventilated area out of direct sunlight.

Planting catnip seeds is a rewarding endeavor that offers benefits to both you and your feline companions. Understanding the benefits of growing catnip, selecting the right time and location for planting, preparing the soil, and choosing quality seeds are all crucial steps in successfully cultivating this versatile herb. By following the step-by-step instructions and incorporating the tips provided in this guide, you will be well-equipped to plant and nurture thriving catnip plants in your garden. Whether you seek to create a playful environment for your cats or enjoy the medicinal properties of catnip yourself, the process of growing catnip seeds is an enriching experience that yields delightful results.

Steps For Planting Catnip Seeds

Catnip, also known as Nepeta cataria, is a popular herb that cats go crazy for. Not only does it attract cats, but it also has medicinal properties and can be used in cooking and aromatherapy. If you’re a cat lover or simply want to grow this herb in your garden, planting catnip seeds is the way to go.

Step 1: Choosing The Right Location

Catnip thrives in well-drained soil and prefers full sun exposure. Before planting your catnip seeds, choose a location in your garden that receives at least 6 to 8 hours of sunlight per day. Ensure that the soil is loose and sandy, providing good drainage. Ideally, the pH level should be between 6.1 and 7.5.

Step 2: Preparing The Soil

To give your catnip seeds the best chance of success, it’s important to prepare the soil properly. Start by removing any weeds or grass from the area where you plan to plant. Loosen the soil to a depth of about 6 to 8 inches using a garden fork or tiller. Once the soil is adequately loosened, mix in organic matter like compost or well-rotted manure. This will help improve the soil’s fertility and drainage.

Step 3: Sowing The Seeds

Catnip seeds are tiny, so it’s important to handle them carefully. To sow the seeds, create shallow trenches in the prepared soil. The trenches should be about a quarter-inch deep and spaced 12 to 18 inches apart. Sprinkle the catnip seeds along the trenches, aiming for a spacing of around 4 to 6 seeds per inch. Afterward, cover the seeds lightly with soil.

Step 4: Watering The Seeds

After sowing the catnip seeds, water the area thoroughly. The goal is to keep the soil consistently moist but not overly saturated. To prevent the seeds from washing away or clumping together, use a misting attachment or a watering can with a fine sprinkle setting. Avoid heavy watering that may displace the seeds or lead to waterlogging.

Step 5: Mulching The Area

Applying a layer of mulch around the base of the catnip plants can provide numerous benefits. Mulch helps to retain soil moisture, regulate soil temperature, control weed growth, and prevent soil erosion. It’s best to mulch your catnip plants after the seedlings have established and are a few inches tall. Use organic materials like straw, wood chips, or leaves for effective mulching.

Step 6: Thinning The Seedlings

Once the seedlings emerge, it’s important to thin them out to ensure proper growing space and airflow. When the seedlings have developed their second set of leaves, gently thin them out, leaving the healthiest and strongest plants. Maintain a spacing of around 12 to 18 inches between the remaining seedlings. Thinning helps prevent overcrowding and encourages healthier plant growth.

Step 7: Transplanting (Optional)

If you prefer to start your catnip plants indoors or in a controlled environment, you can transplant the seedlings once they are established. Begin the process by planting the seeds in small containers or seed trays filled with a seed-starting mix. Keep the soil consistently moist and provide sufficient light until the seedlings are ready for outdoor transplantation. Transplant the seedlings after the last frost date in your area.

Watering And Fertilizing Techniques

Watering Catnip Plants

Catnip plants require regular watering, especially during the initial growth stages. Once the plants are established, they become more drought-tolerant. Water deeply, ensuring the soil is thoroughly moistened. To prevent overwatering or waterlogging, allow the top inch of soil to dry out before watering again.

During hot and dry periods, increase the frequency of watering to keep the soil consistently moist. However, be cautious not to overwater, as this can lead to root rot and other issues. Monitor the moisture levels in the soil and adjust your watering schedule accordingly.

Fertilizing Catnip Plants

Catnip plants generally don’t require heavy fertilization. However, applying a balanced slow-release fertilizer during the growing season can provide nutrients for healthy plant growth. Use a fertilizer with equal amounts of nitrogen, phosphorus, and potassium, such as a 10-10-10 or 14-14-14 formulation.

It’s best to apply the fertilizer sparingly to avoid excessive growth or loss of the plant’s fragrance. Follow the manufacturer’s instructions for the application rate based on the size of your catnip plants. Be sure to water the plants after fertilizing to help the nutrients reach the roots.

Protecting Your Catnip Plants From Pests And Diseases

Common Pests

Catnip is generally resilient against pests, but it can be susceptible to a few common ones. Here are some pests that may target catnip plants:

  1. Aphids: These small insects feed on the sap of the plant, causing distorted growth and yellowing leaves. Use an organic insecticidal soap or a strong stream of water to dislodge the aphids from the plant.
  2. Flea Beetles: These beetles create small holes in the leaves of the plant. Use row covers or organic insecticides to control flea beetles.
  3. Spider Mites: These tiny pests suck the juices out of the leaves, causing them to turn yellow and speckled. Use a strong stream of water or horticultural oil to control spider mites.
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Common Diseases

Catnip is generally resistant to diseases, but some conditions can still affect its growth. The most common diseases that can affect catnip plants include:

  1. Powdery Mildew: This is a fungal disease that results in a white, powdery coating on the leaves. Improve air circulation by thinning the plants and ensuring adequate spacing. Apply organic fungicides such as neem oil or copper-based products when necessary.
  2. Root Rot: Excessively wet soil or poor drainage can lead to root rot. Avoid overwatering and ensure proper drainage to prevent this disease.

Catnip Seed Germination Tips


Catnip seeds have a moderate germination rate, but pre-germination can help improve the success rate. To pre-germinate catnip seeds:

  1. Soak the seeds in water for 24 hours before sowing. This softens the seed coat and promotes germination.
  2. After soaking, transfer the seeds to a damp paper towel or cloth.
  3. Fold the towel or cloth over the seeds and place them in a plastic bag.
  4. Keep the bag in a warm and dark location, such as on top of a refrigerator or in a cupboard.
  5. Check the seeds daily for any signs of germination, which usually occurs within 7 to 10 days.
  6. Once the seeds have sprouted, carefully transfer them to the prepared soil.

Germination Requirements

To ensure successful germination of catnip seeds, provide the following conditions:

  1. Temperature: Catnip seeds germinate best in temperatures between 65 and 75 degrees Fahrenheit (18-24 degrees Celsius).
  2. Moisture: Catnip seeds require consistent moisture during germination. Ensure that the soil or pre-germination medium remains damp but not waterlogged.
  3. Light: Catnip seeds need access to light for germination. If you’re pre-germinating the seeds, uncover them once they start germinating and place them in a well-lit area.

Planting catnip seeds can be a rewarding experience, whether you’re growing it for your feline friends, culinary purposes, or as an aromatic addition to your garden. By following the steps outlined in this article, providing appropriate watering and fertilization, protecting against pests and diseases, and using catnip seed germination tips, you’ll be well on your way to a thriving catnip garden. Enjoy watching your catnip plants grow and delight in the enjoyment it brings to both you and your furry friends.

Transplanting Catnip Seedlings

Catnip (Nepeta cataria) is a perennial herb that is known for its strong, mint-like aroma and its effect on cats. It belongs to the same family as mint and is native to Europe and parts of Asia. Catnip is not only a favorite among cats but also a popular herb for humans, as it can be used in tea or as a natural insect repellant.

Growing catnip from seeds can be a rewarding and relatively simple process.

  1. Seed Starting: Catnip seeds can be started indoors about 6-8 weeks before the last frost date in your area. Fill a seed tray or individual pots with a well-draining potting mix. Moisten the soil lightly before sowing the seeds.

  2. Sowing the Seeds: Scatter the catnip seeds on the surface of the soil and then lightly cover them with a thin layer of soil, about one-eighth of an inch deep. Gently water the seeds, ensuring that the soil remains evenly moist throughout the germination period.

  3. Germination: Catnip seeds typically germinate within 7-14 days. Keep the seed tray or pots in a warm location with temperatures around 70-75°F (21-24°C). Placing a clear plastic cover over the tray or pots can help maintain humidity levels. Once the seedlings emerge, remove the plastic cover and move them to a sunny spot or under grow lights.

  4. Thinning the Seedlings: As the catnip seedlings grow, they may become overcrowded. Thin them out by carefully removing the weaker plants, leaving a spacing of 12-18 inches between each seedling.

  5. Harden Off: Approximately 1-2 weeks before transplanting the seedlings outdoors, start acclimating them to the outdoor conditions through a process called hardening off. Gradually expose the seedlings to increasing amounts of sunlight, wind, and temperature fluctuations by placing them outside for a few hours each day. Protect them from extremes, such as strong winds or heavy rain, during this period.

  6. Planting Outdoors: Choose a location in your garden that receives full sun or partial shade. Catnip prefers well-draining soil with a pH level between 6.1 and 7.8. Dig a hole slightly larger than the seedling’s root ball and gently place the seedling in it. Backfill the hole with soil, firming it gently around the base of the plant. Water thoroughly after planting to help the soil settle and eliminate air pockets.

Maintaining And Pruning Catnip Plants

  1. Watering: Catnip plants require regular watering, especially during dry periods. However, it’s essential not to overwater them, as catnip prefers slightly dry conditions. Allow the top inch of soil to dry out between waterings. Using a finger to test the moisture level in the soil is a handy technique.

  2. Mulching: Applying a layer of organic mulch around the base of catnip plants can help conserve moisture, suppress weed growth, and maintain a more even soil temperature. Use straw, wood chips, or compost as mulch, being sure to keep it a few inches away from the stem to prevent rotting.

  3. Fertilizing: Catnip is a relatively low-maintenance herb that doesn’t require heavy feeding. However, providing a balanced, slow-release organic fertilizer in early spring can improve plant growth. Avoid excessive nitrogen fertilization, as it can lead to lush foliage but less intense scent.

  4. Pruning: Regular pruning is beneficial for catnip plants, as it encourages bushier growth and helps maintain their appearance. Begin pruning when the plants reach around 8-12 inches in height. Cut back about one-third of the plant, trimming just above a leaf node to encourage new growth. Repeat this process a couple of times during the growing season to control the plant’s size.

  5. Controlling Self-seeding: Catnip is known for its vigorous self-seeding behavior. To prevent the plant from spreading too aggressively, it is recommended to deadhead the flowers before they can produce seeds. This will not only control the spread but also encourage the plant to continue blooming.

  6. Pests and Diseases: Catnip is generally resistant to most common garden pests and diseases. However, occasional issues with aphids, spider mites, or powdery mildew may occur. Inspect the plants regularly and, if necessary, use organic insecticidal soap or neem oil to control pests. To prevent fungal diseases, avoid overhead watering, provide adequate airflow, and space the plants properly.

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Harvesting And Storing Catnip Seeds

  1. Timing: Catnip plants typically start flowering in late spring and continue blooming throughout the summer. Harvesting catnip seeds should ideally be done when the majority of the flowers have faded and dried up on the plant. The seeds are ready for harvesting when they turn brown and start to fall off the seed heads.

  2. Harvesting: Place a clean tray or a large piece of paper underneath the seed heads. Gently rub the seed heads between your fingers or against the paper, allowing the seeds to separate from the stalks. Collect as many seeds as you desire, taking care not to crush them.

  3. Drying: After harvesting, spread the seeds in a single layer on a paper towel or a screen in a well-ventilated area. Avoid direct sunlight and high humidity, as this could hinder the drying process. Allow the seeds to air dry for about two weeks or until they are thoroughly dry and brittle.

  4. Storing: Once the catnip seeds are completely dry, transfer them to an airtight container, such as a glass jar or a seed envelope. Label the container with the date and seed variety. Store the seeds in a cool, dark place, such as a refrigerator, to maintain their viability for up to three years.

Common Mistakes To Avoid When Planting Catnip Seeds

  1. Overwatering: Catnip prefers slightly dry conditions, so avoid overwatering the plants. Overly moist soil can lead to root rot and other diseases.

  2. Planting in Poor Drainage: Ensure that the soil where you plant catnip has good drainage. If the soil holds too much water, it can cause root issues and affect the overall health of the plant.

  3. Neglecting Thinning: Overcrowded catnip seedlings can lead to stunted growth and increased vulnerability to diseases. Thin out the seedlings to allow enough space for each plant to grow.

  4. Not Providing Adequate Sunlight: Catnip requires at least 6 hours of direct sunlight per day to thrive. Planting in a shady spot may result in poor growth and reduced oil content in the leaves.

  5. Skipping Hardening Off: Failing to acclimate the catnip seedlings to outdoor conditions can shock them and lead to stunted growth or even death. Harden off the seedlings gradually before transplanting them into the garden.

  6. Allowing Excessive Spreading: Catnip has a tendency to self-seed aggressively and spread throughout the garden. Regular deadheading can prevent excessive spreading, keeping the plants contained.


Growing catnip from seeds can be a delightful and rewarding experience, both for cat lovers and herb enthusiasts. By following the steps outlined in this article, you can successfully start catnip seeds indoors, transplant the seedlings outdoors, maintain the plants, harvest the seeds, and store them for future use.

Remember to provide proper care and maintenance, including watering, pruning, and pest control, to ensure healthy and vibrant catnip plants. By avoiding common mistakes like overwatering and neglecting thinning or sun requirements, you can enjoy a thriving catnip garden that will not only attract the attention of your furry friends but also provide aromatic leaves and seeds for various uses.


What Type Of Soil Should I Use To Plant Catnip Seeds?

Catnip grows best in well-drained soil with a slightly alkaline pH between 6.1 and 7.5. You can add compost or aged manure to improve soil quality.

When Should I Plant Catnip Seeds?

Catnip should be planted in early spring after the last frost or in the fall. Aim to plant seeds when the soil temperature has reached at least 60°F.

How Deep Should I Plant Catnip Seeds?

Catnip seeds should be scattered on the surface of the soil and lightly covered with a fine layer of soil or compost. The ideal depth for planting catnip seeds should not exceed 1/4 inch.

How Often Should I Water My Catnip Plants After Planting?

Catnip plants do not require a lot of water, and overwatering can cause root rot. Water your plants once a week, or when the top inch of soil feels dry. Avoid getting water on the leaves, as this can increase the risk of fungal diseases.

What Is The Best Way To Care For Catnip Plants After They Have Been Established?

Catnip plants require little maintenance once they are established. Fertilize them once a year in the spring and prune them back by 1/3 after flowering to encourage bushier growth. If the plant starts to get too leggy, it can be cut back by half in the early summer to promote a second flush of growth. Catnip may self-seed and spread, so you may need to prune it back to keep it contained.