Lavender (Lavandula) is generally not difficult to grow if you provide the right conditions. Here are some key considerations to help you successfully grow lavender:
Climate
Lavender requires at least 6-8 hours of direct sunlight daily. While some varieties can tolerate colder climates, Lavender generally prefers milder climates and thrives in warm, temperate climates. It prefers temperatures between 60-80°F (15-27°C).
Soil
Lavender prefers well-draining, sandy or loamy soils with a slightly alkaline to neutral pH (6.5-7.5). Heavy clay soils that retain moisture can lead to root rot. If you have clay soil, consider amending it to improve drainage. Gravel and perlite can be good for this. Sand, especially in clay soils, should be avoided as an amendment.
Planting
Space plants about 12-24 inches apart, depending on the variety. Good air circulation helps prevent disease. Your specific climate conditions might dictate the best time of year to plant lavender. In some climates, spring is the best time for planting lavender. In others, early fall is a good time to plant lavender.
Watering
Lavender is drought-tolerant once established. Water young plants regularly until they are established, but avoid overwatering. Established plants only need to be watered when the soil is dry.
Maintenance
- Prune lavender plants annually to maintain their shape and encourage new growth. Prune back about one-third of the plant in early spring or after flowering.
- Lavender can benefit from the application of fertilizers, but generally doesn’t require much fertilizer. Too much nitrogen can lead to lush foliage with fewer flowers. Have your soil tested to determine the amount and type of fertilizer to use. Make sure to use a soil analysis lab that is familiar with lavender.
- Mulching with gravel or sand around the base of the plant can help with drainage and keep the soil from retaining too much moisture.
Pests and Diseases
Lavender is relatively pest-resistant. However, it can occasionally be affected by aphids or spittlebugs. Root rot and fungal diseases can occur if the soil is too wet. Proper spacing and well-draining soil can mitigate these issues.
Your checklist for successful lavender growth
| ✔ Sunlight | 6-8 hours of direct sunlight daily |
| ✔ Temperatures | Between 60-80°F (15-27°C) |
| ✔ Soil | Well-drained, sandy, or loamy soils are ideal, slightly alkaline to neutral pH (6.5-7.5) |
| ✔ Planting | Space plants 12-24” apart |
| ✔ Watering | Water young plants regularly. Only water mature plants when the soil is dry. Lavender is drought-tolerant. |
| ✔ Pruning | Prune ~⅓ in Spring or after flowering annually |
| ✔ Fertilize | Consult with a soil analyst familiar with lavender to determine your approach (a little is often great; too much stunts flowering) |
| ✔ Mulching | Use gravel or sand to improve soil drainage around your plants |
| ✔ Pets & Disease | Aphids, spittlebugs, root rot, and fungal diseases can occur. Space plants & drain soil to mitigate these risks. |
By following these guidelines, you can successfully grow and enjoy lavender in your garden. It’s a low-maintenance plant once established, providing beautiful blooms and a pleasant fragrance.