Lavendula in Zone 4? A beautiful plant. Is this Lavendula hardy in Zone 4, or do you 'house' it for the winter? Or, slip it? Thank you. Taramark
While mature nursery grown plants of lavandula do well in the summers of zone 4. They should be lifted,potted and stored overwinter in a cool basement or root cellar. Alternatively cuttings may be taken in July, rooted in a 50/50 peat and perlite mix. Then when rooted potted up and grown on a coolish well lit window ledge over the winter. Better yet kept under a light unit in a room which doesn't get warmer than 10 by day and down around 3/5 by night.
