Around doors, windows and seating areas, and along those pathways you take when returning home, position plants whose scents you find most relaxing. Lavender, chamomile, jasmine, honeysuckle and rose are all likely candidates.
Choose lavender, which grows into clumps or can be arranged to create a low hedge, to line paths and the areas directly underneath windows. You can use chamomile, which is lower and spreading, to create a flowering lawn and, although too delicate for kicking a football about on, it would be lovely around a bench or underneath a hammock. Jasmine and honeysuckle are both climbers as, of course, are some varieties of rose, so train them to arch over doorways and around windows so you can appreciate their scent inside as well. There’s nothing so lovely as waking up to the scent of roses on a June morning. And a honeysuckle left to ramble over a covered seat is wildly romantic.
If you have a relaxed seating area in your garden with sofas and armchairs, consider planting the space with flowers that release their scent as the sun sets. The sweet, dusky fragrances of nicotiana, night-scented stock, star jasmine, phlox and, again, honeysuckle are all gently soothing.
While these are plants that most people find calming, comfort is also bound up in our own personal experiences and memories. So think about the plants you could choose to reflect that. It might be a pot of hyacinths whose fragrance reminds you of a grandparent. Or the greenhouse scents of tomatoes and pelargoniums (also often known as half-hardy or scented geraniums) that recall childhood summer memories.