The Q&A Archives: Need Tips For Dividing A Large Lavender Plant

Question: In April, I moved into a house and inherited a very large lavender plant (about the size of a small bean-bag chair)that is too big for the area (under the mailbox). At that point, I pruned about 1/6 of the bush because it was brown and dead. Now (in June), it's beautiful! BUT, it's too sticks out into the street and the mailmain is banging into it, etc. I would like to divide it into smaller sections (maybe 3) and move all 3 of those sections a little farther away from the street, but still in my 'mailbox garden'. I don't want to hurt it, so I need to know the best way to go about dividing and moving such an established bush. I'm sure I'll need to wait until Fall to do this, but I'd like to have a plan of action in place for undertaking such a task. Any help would be appreciated.

Answer: Unfortunately, a mature lavender is not amenable to division. (It might be easier to move the mail box.) This plant is usually propagated by rooting tip cuttings. To do this, take a four inch branch tip, remove the foliage from the bottom half, apply rooting hormone to the bare stem, and stick it into clean, dampened, soilless potting mix. Cover the pot loosely with a clear plastic bag and set it in a bright location out of direct sun. Open the bag occasionally to allow for air exchange and to check for roots. Once well rooted, plant in the garden. Early summer is the time to try this.

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