• Mar 8, 2026 scented leaf pelargoniums a gardeners guide to th ibrant fragrance. In hotter climates, some afternoon shade can prevent leaf scorch. Temperature: Preferably between 15°C and 25°C. They are sensitive to frost; in colder regions, bring plants indoors during winter or grow them as annuals. Watering and Humidity Watering: Allow the soil to dry By Casper Schoen