How to Prune Lavender - never prune in fall or winter and never cut back to the ground. Prune in spring and early summer after first leaf buds emerge to cut out dead wood and then prune again just after flowers fade - deadhead and shape plants then, leave at least 3 - 5 leaf nods below each flower spike, when shaping, leave at least 5 obvious nodes above the ground where new growth can emerge
Continuous harvest lettuce! This is a great method for harvesting lettuce for anyone who puts work into a garden (might as well get the most bang for your buck, right?) but it's an especially good tip for urban gardeners who don't have a lot of space.
Clean up lavender | Garden Gate eNotes: Only remove a third of the leafy growth. Cutting too late in the season, back to bare woody stems or removing too much foliage stresses the plant and often kills it.