Lavenders and lavandins generally transplant well but will usually not flower much during the first summer following transplanting. The best times to transplant are late autumn/early winter and very early spring.
Water plants well before moving them to a new position. Cut back and trim damaged roots and remove any flowering material if still present.
When planting out in the garden, mix a well balanced compost and bone meal (about ½ cup of each) into your soil before planting. If your soil is hard clay, mixing some sand in will help to loosen the clay. If the plant is tall or spindly, cut back to encourage more lateral growth.
Using sand for mulch around the plant keeps the plant clean, promotes good drainage, and reflects light back up into the plant, thus creating more heat. Heat creates more fragrant blooms.
Once a plant has been moved, it is best to cut off spikes in the first summer following transplanting to divert plants’ energy into producing sturdy roots and foliage instead of flowers. Flower production will be restored by the second summer in the new location. Pinch tips of any strong leaders or stems to encourage lavender to branch.
Prune your plant in the fall to 2/3 of its size, leaving a couple of inches of green above the woody stems. This may seem severe, but they will respond very well to this pruning.
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