Lavender watering frequency depends on whether the plant is newly planted, established, in the ground, or in a pot, as well as the climate and season.
Watering Newly Planted Lavender
- Water newly planted lavender about 1-2 times per week during its first summer to help establish roots
- Keep the soil consistently moist but not waterlogged during this period
- Use thorough watering to saturate roots, then allow soil to dry before watering again
Watering Established Lavender in the Ground
- Established lavender is very drought tolerant and typically does not need frequent watering
- Water only during prolonged dry spells, for example if there has been no rain for two weeks or more
- Overwatering can cause root rot and harm the plant, so avoid watering if the soil is not dry
- In winter, outdoor lavender generally does not require watering
Watering Lavender in Pots
- Potted lavender dries out faster and needs more regular watering than ground plants
- Water when the soil is dry about an inch below the surface, typically 1-2 times per week in summer
- The "8:8:8 rule" suggests watering potted lavender with about 8 ounces of water every 8 days for the first 8 months after planting
- In cooler months or winter, reduce watering to every 2-3 weeks or less, allowing soil to dry out between waterings
Summary
- Newly planted lavender: Water 1-2 times weekly during the first summer.
- Established lavender in ground: Water only during extended dry periods (every 2 weeks or less).
- Potted lavender: Water when soil is dry, about 1-2 times per week in summer; less in cooler months.
Always ensure good drainage and avoid overwatering to prevent root rot. Water at the root zone rather than overhead to keep foliage dry and healthy
. This approach balances lavender’s drought tolerance with its need for moisture during establishment and dry conditions
