The Ultimate Guide on How to Plant a Herb Garden Planter Box


Growing your own herbs is a rewarding and cost-effective way to enhance your culinary creations.

If you have limited space or want to add a touch of greenery to your balcony or patio, a herb garden planter box is the perfect solution.

In this comprehensive guide, we will walk you through the step-by-step process of planting and maintaining a herb garden planter box, ensuring a bountiful harvest of fresh herbs right at your fingertips.

Choosing the Right Box for Plants

When selecting a planter box for your herb garden, there are a few factors to consider. First, think about the material of the box. Common options include wood, plastic, and metal.

Each material has its pros and cons, so choose one that suits your style and budget.

Next, consider the size and depth of the planter box. Herbs generally have shallow root systems, so a box that is at least 6-8 inches deep should be sufficient.

However, if you plan to grow larger herbs or want to have more soil volume for better moisture retention, opt for a deeper box.

Lastly, think about the drainage capabilities of the box. Ensure that it has adequate drainage holes to prevent waterlogging, which can lead to root rot.

If the box does not have drainage holes, you can drill them yourself.

Can You Plant Herbs in the Same Pot?

Yes, you can plant herbs in the same pot or planter box. In fact, planting herbs together in the same container has several benefits.

First, it saves space, allowing you to grow a variety of herbs in a limited area.

Second, certain herbs have natural pest-repellent properties, which can help protect neighboring herbs from pests.

When planting herbs together, consider their growth habits and requirements. Group herbs with similar water and sunlight needs to ensure they thrive together.

For example, basil, parsley, and cilantro all prefer moist soil and full sun, making them suitable companions.

However, avoid planting aggressive herbs, such as mint, with other herbs, as they can quickly take over the container.

It’s also important to consider the size of the herbs when planting together. Ensure that taller herbs do not shade smaller ones, as this can hinder their growth.

Garden Herb Box vs. Garden in Planter Boxes

Deciding between a dedicated garden herb box or using planter boxes for herb gardening depends on your preferences and available space.

A garden herb box is a dedicated space for growing herbs. It can be a raised bed or a designated area in your garden.

This option allows for more flexibility in terms of the number of herbs you can grow and provides ample space for each herb to spread its roots.

However, it requires more space and maintenance.

On the other hand, using planter boxes for herb gardening is ideal for those with limited space or who want to grow herbs on a balcony or patio.

Planter boxes are portable and can be easily moved around to optimize sunlight exposure. They also allow for better control over soil quality and drainage.

However, the number of herbs you can grow may be limited by the size of the planter boxes.

Consider your available space, gardening goals, and level of commitment before deciding between a garden herb box or planter boxes for your herb garden.

Garden Plant Box: Design and Placement

Designing your herb garden planter box is an opportunity to showcase your creativity and enhance the aesthetic appeal of your space.

Consider the overall style and theme of your outdoor area when choosing the design of your planter box. Options range from rustic wooden boxes to sleek and modern metal containers.

When it comes to placement, choose a location that receives ample sunlight. Most herbs require at least 6 hours of direct sunlight per day to thrive.

If you have limited sunlight, consider placing your planter box near a south-facing wall or using supplemental grow lights.

Additionally, ensure that the planter box is easily accessible for watering and maintenance. Avoid placing it in areas with high foot traffic or where it may obstruct pathways.

By carefully considering the design and placement of your garden plant box, you can create a visually appealing and functional herb garden that complements your outdoor space.

Herb Garden Planter Box: Soil and Drainage

The quality of the soil and the drainage capabilities of your herb garden planter box are crucial for the health and growth of your herbs.

Choose a well-draining soil mix specifically formulated for container gardening. Avoid using garden soil, as it can become compacted and hinder root growth.

A good soil mix for herbs should be light, loose, and rich in organic matter.

To improve drainage, add a layer of small rocks or gravel at the bottom of the planter box before adding the soil.

This will prevent water from pooling at the bottom and ensure that excess moisture can escape through the drainage holes.

Regularly check the moisture level of the soil and water your herbs when the top inch feels dry.

Overwatering can lead to root rot, so it’s important to strike a balance between keeping the soil moist and allowing it to dry out slightly between waterings.

Herb Garden Planter Box: Plant Selection and Spacing

When selecting herbs for your planter box, consider their growth habits, sunlight requirements, and compatibility.

Some popular herbs that thrive in planter boxes include basil, rosemary, thyme, mint, and oregano.

Ensure that you choose herbs that have similar water and sunlight needs to ensure they grow harmoniously together. This will make it easier to provide them with the care they require.

When it comes to spacing, herbs generally need about 6-12 inches of space between each other.

This allows for proper air circulation and prevents overcrowding, which can lead to disease and pest issues.

However, some herbs, like mint, can be more aggressive and may require their own separate container to prevent them from taking over the planter box.

Consider the mature size of each herb when determining the spacing.

Taller herbs, such as rosemary, should be placed towards the back of the planter box to prevent them from shading smaller herbs.

Herb Garden Planter Box: Planting Techniques

Once you have selected your herbs and determined the spacing, it’s time to plant them in your planter box. Follow these step-by-step instructions for successful planting:

  1. Fill the planter box with the prepared soil mix, leaving about an inch of space at the top.
  2. Gently loosen the roots of each herb before planting.
  3. Dig a hole in the soil that is slightly larger than the root ball of the herb.
  4. Place the herb in the hole, ensuring that the top of the root ball is level with the soil surface.
  5. Backfill the hole with soil, gently pressing it down to secure the herb in place.
  6. Repeat the process for each herb, maintaining the recommended spacing between them.
  7. Water the newly planted herbs thoroughly, ensuring that the soil is evenly moist.

Water the herbs regularly, keeping the soil consistently moist but not waterlogged. Monitor their growth and adjust watering frequency as needed.

Herb Garden Planter Box Maintenance

To ensure the health and productivity of your herb garden planter box, regular maintenance is essential. Here are some key maintenance tasks to keep in mind:

  1. Watering: Check the moisture level of the soil regularly and water when the top inch feels dry. Avoid overwatering, as it can lead to root rot.
  2. Fertilizing: Herbs in planter boxes benefit from regular feeding. Use a balanced organic fertilizer or a slow-release granular fertilizer according to the package instructions.
  3. Pruning: Regularly prune your herbs to promote bushier growth and prevent them from becoming leggy. Harvesting the leaves regularly also encourages new growth.
  4. Pest Control: Monitor your herbs for signs of pests, such as aphids or spider mites. Use organic pest control methods, such as neem oil or insecticidal soap, to address infestations.
  5. Disease Prevention: Proper spacing, good air circulation, and well-draining soil can help prevent diseases. Remove any diseased plants promptly to prevent the spread of infection.

By following these maintenance practices, you can ensure that your herb garden planter box remains healthy and productive throughout the growing season.

Herb Garden Planter Box: Seasonal Considerations

Different seasons require different care routines for your herb garden planter box. Here are some seasonal considerations to keep in mind:

  1. Spring: As temperatures rise, increase watering frequency to accommodate the herbs’ increased water needs. Begin fertilizing with a balanced organic fertilizer to support new growth.
  2. Summer: Provide shade or move the planter box to a cooler location during extreme heatwaves. Water more frequently to prevent the soil from drying out.
  3. Fall: Harvest any remaining herbs before the first frost. Consider bringing tender herbs indoors or protecting them with row covers to extend their growing season.
  4. Winter: Mulch the soil surface with straw or leaves to insulate the roots and protect them from freezing temperatures. Water sparingly during winter dormancy.

Adjust your care routine accordingly to ensure that your herbs thrive throughout the changing seasons.

Herb Garden Planter Box: Troubleshooting

Despite your best efforts, issues may arise in your herb garden planter box. Here are some common problems and their solutions:

  1. Yellowing Leaves: Yellowing leaves can indicate overwatering or nutrient deficiencies. Adjust your watering schedule and consider fertilizing with a balanced organic fertilizer.
  2. Wilting: Wilting can be a sign of underwatering or root rot. Check the moisture level of the soil and adjust your watering accordingly. If root rot is suspected, repot the affected herb in fresh soil.
  3. Pests: Common pests in herb gardens include aphids, spider mites, and whiteflies. Use organic pest control methods, such as neem oil or insecticidal soap, to address infestations.
  4. Diseases: Proper spacing, good air circulation, and well-draining soil can help prevent diseases. If disease does occur, remove affected plants promptly to prevent the spread of infection.

Regularly inspect your herb garden planter box for signs of problems and address them promptly to ensure the health and vitality of your herbs.


With a herb garden planter box, you can enjoy the convenience of fresh herbs right outside your door.

By following the steps outlined in this comprehensive guide, you’ll be well on your way to creating a thriving herb garden that will provide you with a bountiful harvest of flavorful herbs for years to come.

Happy planting!

Frequently Asked Questions

Can I use a window box for my herb garden?

Yes, you can use a window box for your herb garden. Window boxes are a great option for those with limited space or who want to grow herbs indoors.

Ensure that the window box has proper drainage holes and is securely attached to the window sill or wall.

Choose herbs that are suitable for indoor growing conditions, such as basil, parsley, chives, or thyme.

Place the window box in a location that receives adequate sunlight, preferably near a south-facing window.

How often should I water my herbs in the planter box?

The frequency of watering your herbs in the planter box depends on various factors, including the type of herbs, weather conditions, and the moisture retention capacity of the soil.

As a general guideline, check the moisture level of the soil by inserting your finger about an inch deep. If the soil feels dry at that depth, it’s time to water.

However, avoid overwatering, as it can lead to root rot. It’s better to underwater slightly than to overwater. Monitor your herbs closely and adjust the watering frequency as needed.

Can I grow herbs in a planter box indoors?

Yes, you can grow herbs in a planter box indoors. Indoor herb gardening is a popular option for those who want fresh herbs year-round or have limited outdoor space.

Choose a planter box that fits your indoor space and has proper drainage. Place the planter box near a window that receives at least 6 hours of sunlight per day.

If natural light is limited, you can supplement with grow lights. Select herbs that are suitable for indoor growing conditions, such as basil, mint, chives, or parsley.

Ensure proper air circulation and maintain consistent moisture levels in the soil.

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