blue sage

Blue Sage should be watered deeply and infrequently. During the growing season, which for this species is during spring and summer months, give the plant a deep watering at least once every 2 to 3 weeks. During the cooler winter months, water the plant only when the top inch or so of soil becomes dry. The soil should be allowed to dry for several days before re-watering to avoid pooling water. Moisture should be monitored closely, especially in more well-drained soils. Too much or too little water can cause the plant to yellow and deteriorate.

Blue sage (Salvia azurea) prefers full sunlight and is best grown in sunny, open sites with well drained soil. It should receive around 6 to 8 hours of direct sunlight daily in order for the plant to thrive. In colder climates, however, sheltered sites such as south facing walls or fences can be beneficial, protecting the plant from harsh winter temperatures. While blue sage will produce leaves and stems even in somewhat shaded conditions, it will flower best with the more intense light found in sunnier areas.

Blue sage should be pruned each year, typically during late winter. Pruning should always be done when the plant is dormant or not actively growing. Pruning any later can lead to damage or reduced flowering. To get the bushiest, most attractive plant, begin pruning by first removing all deadwood in early winter. Cut back any spindly or weak growth to the ground and remove any dead flowers. Evenly spacing out previously fruiting stems can also increase the quantity of blossoms. Finally, for optimum form, prune back a portion of the taller stems, leaving the shorter, bushier stems unpruned. Trimming the tips of the stems and/or thinning the center of the plant can also help to make it look more aesthetically pleasing. As with any pruning, be sure to sterilize your pruning shears or saw with bleach or electrical disinfectant prior to use to avoid spread of disease.