Growing herbs can be deceptively simple, yet many mistakes can lead to disappointing results. Often, it's misunderstood that herbs require less care than other plants. However, whether it’s their pot placement, soil conditions, or watering habits, several factors determine the health and flavor of your herbs.
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We’ve encountered numerous gardening errors, particularly with herbs. Whether you're a novice or a seasoned cook looking to expand your herb collection, we've compiled expert advice on common herb gardening pitfalls from a leading gardening expert.
Here, the expert shares insights on five crucial mistakes to avoid in your herb garden.
Common Herb Gardening Mistakes – and Their Solutions
These frequent errors can be quickly remedied with some guidance.
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1. Placing Herbs in Unsuitable Locations
Like all plants, herbs need appropriate conditions for planting. Before selecting herbs, consider whether they thrive in sunlight or shade, and whether they require well-drained or boggy soil. Incorrect placement can lead to their demise. Grouping herbs with similar needs can enhance growth and success.
“Organize herbs into categories. For instance, Mediterranean varieties like lavender, sage, oregano, and thyme can be planted together. However, remember that some, like sage and rosemary, may outgrow their space and need relocation,” advises the expert.
See: Starting a herb garden – with tips on making it fragrant, from Petersham Nurseries
“Basil requires more sun than lavender, so keep them in separate pots. Parsley, dill, and chives can thrive in shadier areas, but keep them away from Mediterranean herbs,” she adds.
2. Overcrowding Your Herbs
Overcrowding leads to poor growth, so plan accordingly when planting. Measure your garden bed or container and check the expected spread of herbs before planting.
If herbs are planted too closely, you may need to separate them annually to ensure they have enough space to flourish. Some herbs are short-lived, making this a critical consideration.
3. Neglecting Regular Pruning
While herbs may not be admired for their visual appeal, they still require maintenance. “Keep trimming your herbs. If you don't use the cuttings, freeze them or use them in ice cubes. Regular trimming helps maintain shape,” the expert states.
Frequent cutting encourages healthy growth and prevents legginess, flowering, and eventual leaf loss.
To propagate herbs, cut just below the leaf node and place in water. For example, basil can have several stems placed in a jar for root growth, allowing you to create a new plant without cost,” she explains.
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4. Allowing Flowers to Form
Many herbs will flower if not regularly trimmed. While flowers can be attractive, letting them bloom too early can lead to the plant's decline.
Aim to snip flowers promptly to prevent harm to your herbs.
5. Failing to Add Gravel for Drainage
A surprising reason for herb demise could be insufficient drainage caused by a lack of gravel in the soil. This addition can significantly improve drainage, allowing herbs to thrive longer and taste better.
6. Assuming Herbs Need No Water
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Despite their Mediterranean origins, herbs need consistent watering, especially in their first growing season. “Herbs may be labeled drought-tolerant, but they require regular watering until their roots establish,” she emphasizes.
Watering should be directed at the roots early in the morning to allow absorption before the heat of the day. Avoid wetting the leaves to promote better health.
7. Skipping Mulching
Another frequent error is neglecting to mulch. Warm weather often coincides with herb planting, making this oversight detrimental. Mulching helps retain moisture and reduces the need for frequent watering.
Apply mulch around your herbs, but avoid placing it directly against their stems to deter pests.
8. Not Feeding Your Herbs
Regular cutting means your herbs are working hard, so it’s essential to provide nourishment. Feed them with suitable organic fertilizer weekly, ensuring you avoid direct contact with the leaves.
9. Planting Mint in the Ground
While having abundant plants is beneficial, mint is notorious for its vigorous growth, and should be contained. “Avoid planting mint in the ground, as it will take over,” warns the expert.
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“I have chocolate mint everywhere because I planted it in a pot in the ground. Always use a separate container for mint and lemon balm to prevent takeover.”
With these expert tips, your herb garden is sure to flourish, bringing flavor to your meals all season long.
10. Purchasing Diseased Herbs
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This applies universally: when selecting any plant, especially herbs for harvesting, inspect them for diseases and pests. Look for unhealthy leaves and check underneath for unwanted insects or eggs that could spread to your garden.
