Later in the month as the sap begins to rise, keep looking into the centre of your lavender plants. As soon as you see a good crop of new growth at the base, cut the plant hard back to this level. If left to their own devices, lavenders will naturally tend to woody growth, eventually splitting in the middle. Although entirely normal, this is not really a good look in the garden. By cutting the plants hard back in spring each year, you will encourage new growth and keep your lavenders young looking. There is no reason why they should not go on for years like this. Just remember not to cut back into dead wood. If your lavender is already looking woody and straggly, best to remove and replace with a new plant. Remember! Lavenders thrive in poor soil so do not mulch or feed too much!