As spring and summer progress, lavender blooms grace gardens and patios alike. Few would argue against the charm of this fragrant herb, which is not only a delight to the senses but also attracts pollinators.

If you're familiar with growing lavender, you might wonder whether fertilization is necessary. While watering needs are crucial, you should also be cautious about feeding this herb. Just as over-watering can harm lavender, excessive fertilization can be detrimental too. Sometimes, well-meaning gardeners provide too much care, which can backfire.

Experts weigh in on whether aromatic herbs like lavender require fertilizer throughout their growing season. Before you grab the fertilizer, pause to consider if it's truly needed.

Lavender bloom close-up with a bee pollinating the flower

(Image credit: Getty Images/Alphotographic)

Is Fertilization Necessary for Lavender?

Lavender is a beloved choice in gardens, adored by bees, butterflies, and humans alike. Many popular lavender varieties showcase blooms that are tough to beat in any herb garden.

Gardeners often ask, should I fertilize lavender? While it may seem beneficial, sometimes feeding can cause more issues than it solves.

Should Ground Lavender Get Fertilizer?

lavender Sweet Romance ('Kerlavangem') flowering in pathway edging

(Image credit: Proven Winners)

According to gardening expert Gail Pabst, 'Slow-growing herbs like lavender, rosemary, and thyme generally don't require feeding.'

Lavender thrives in the dry, nutrient-poor soils of the Mediterranean, making it one of the best drought-resistant herbs. This means it can flourish without additional fertilization. 'They do wonderfully without any fertilizer,' Gail emphasizes.

Understanding a plant's origins can significantly influence its care. 'Knowledge of their natural habitat helps gardeners prepare soil and watering practices,' says Susan Betz, herb specialist and Honorary Master Gardener. 'To help your herbs thrive, mimic their natural conditions as closely as you can.'

Lavender requires well-drained soil and abundant sunlight. 'For optimal soil health and growth, fertilizing isn't necessary. Instead, applying a light layer of coarse sand or small gravel annually is beneficial,' Susan advises. This approach boosts growth, enhances flower and oil production, wards off diseases, and protects against winter waterlogging.

Gail Pabst
Gail Pabst

Gail is a devoted horticulturist with over 25 years in the field. She's an enthusiastic home gardener who enjoys experimenting with new varieties and techniques. As Marketing Director for the National Garden Bureau, she works to inspire and educate others about gardening.

Preparing Soil for Lavender Planting

Improving soil using chicken manure pellets

(Image credit: Getty Images/Maksims Grigorjevs)

While fertilizing established lavender isn't necessary, conditioning the soil before planting can improve the chances of success. If you're exploring flower bed ideas or wondering when to plant lavender, early spring or fall are ideal times.

'Most herbs thrive in alkaline to neutral pH soil,' Susan notes. If you're unsure of your soil's pH, consider using a soil pH test from Walmart to evaluate acidity or alkalinity.

'If your soil is on the acidic side, don't worry,' Susan reassures. 'Adding lime in the fall can help neutralize the ground before planting your herbs.'

A cost-effective option for soil conditioning is chicken grit. 'This affordable material is available at many feed stores and serves as a slow-release lime source for your soil,' Susan explains.

Susan Betz headshot
Susan Betz

Susan Betz is an author, garden communicator, lecturer, and conservationist with over 35 years of experience in herbs and native plants. She actively promotes public awareness about gardening and the natural environment and is a life member of the Herb Society of America.

Should Potted Lavender Get Fertilizer?

Watering a lavender with a watering can

(Image credit: Getty/Ganna Zelinska)

Potted lavender doesn't need fertilization either. Just like those planted in the ground, they thrive with minimal attention.

If you're learning how to grow lavender in pots or designing a balcony herb garden, remember: no feeding is required. Position pots in a sunny, warm area with at least six hours of sunlight daily for optimal growth.

Ensure your pots have adequate drainage with materials like sand or grit to prevent over-saturation. Lavender roots cannot tolerate standing water.

Despite the temptation to feed lavender and other herbs as an act of care, this can be counterproductive. Many commercial fertilizers are high in nitrogen, promoting foliage at the expense of blooms.

Common Questions

Should I Fertilize Lavender Plants That Aren't Flowering?

No, avoid fertilizing lavender plants that fail to bloom. If your lavender produces few flowers, assess the light and soil quality. Lavender thrives in warm, sunny, sheltered spots and dislikes excess moisture.


In summary, lavender doesn't require fertilizing. This herb flourishes in nutrient-poor, well-draining soil. Plant in the proper location with ample sunlight, and your lavender will thrive without any fertilizer.

For more insights on caring for your lavender, check out our guide on reviving woody lavender plants to learn how to maintain older specimens in your garden.