Soil for Lavender Plants

Sandy Texture

• Lavender plants thrive in dry, sandy soil. Acidic or wetter soils, such as those designed for starting seeds or designed for tropical plants, may cause the plants to absorb too much moisture, which can stunt growth. If sandy soil is not available, try mixing pebbles into the mix to better aerate the soil. Add lime to the soil to make it more alkaline than acidic. According to growers at Sunshine Lavender Farm, the ideal pH range is 6.5 to 7.5.

Moisture

• In most cases, dry soil is better than wet. Your lavender plants need water to grow, but too much can cause the lavender to rot or mildew. In humid climates, water manually less frequently. Lavender grows well in plant hardiness zones 4 through 10, but the less humid the environment the easier they are too maintain.

Drainage

• One way to prevent too much moisture from damaging your lavender plants is to use well-drained soil. Proper drainage will keep the plants from developing what is known as "wet feet," which can lead to water-logged, moldy soil. The right planters are key if you're using containers. Be sure the planters feature holes at the bottom for water to run through. If planting in the ground, till your soil before planting. Loosen up the roots before transplanting the lavender.

Fertilizer

• Fertilizer is rarely if ever necessary for lavender plants. In fact, too much fertilizing can cause the plants to lose their natural aroma by stimulating the growth of more leaves than fragrant flowers. If you choose to use fertilizers, avoid those with harsh chemicals. Instead, combine organic matter such as broken-down fruit peels and lawn clippings to the soil. Use time-release fertilizer when transplanting the lavender.

Temperature

• The temperature of the soil is a factor in maintaining healthy lavender plants. Lavender plants thrive in hot, sunny areas. Check the temperature of the soil, not just the air, to ensure it is at a healthy heat level. If you grow your lavender in a container, the temperature of the soil will often be cooler than ground soil, so provide adequate lighting for the plants' growth.