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Russian Sage (Perovskia atriplicifolia) is a popular perennial known for its aromatic gray-green foliage and tall spikes of lavender-blue flowers. It attracts a variety of pollinators such as bees, butterflies, and hummingbirds, making it a valuable addition to your garden. Proper preparation before pollinator season ensures your Russian Sage remains healthy and continues to support local pollinators.
Timing Your Preparation
The best time to prepare your Russian Sage for pollinator season is early spring, just as new growth begins to emerge. This allows you to address any winter damage and promote healthy growth for the upcoming season.
Pruning and Cutting Back
Pruning is essential to keep your Russian Sage vigorous and to encourage abundant flowering. Use clean, sharp garden shears to trim back the plant to about 6-8 inches above the ground. Remove any dead, damaged, or woody stems to improve air circulation and reduce disease risk.
For a more natural look, you can cut back the plant by one-third in late spring after the last frost. This encourages bushier growth and more flowers, providing ample nectar for pollinators.
Soil Preparation and Fertilization
Russian Sage thrives in well-drained soil with a neutral to slightly alkaline pH. Before the growing season, amend the soil with organic matter such as compost or aged manure to improve drainage and fertility.
Apply a balanced, slow-release fertilizer in early spring to support healthy growth. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flowers.
Watering and Mulching
Russian Sage is drought-tolerant once established, but regular watering during the first growing season helps develop a strong root system. Water deeply but infrequently to prevent root rot.
Applying a layer of mulch around the base of the plant conserves moisture, suppresses weeds, and maintains soil temperature. Use organic mulch such as bark or straw, keeping it a few inches away from the stem to prevent rot.
Supporting Pollinators
To maximize pollinator activity, plant Russian Sage in a sunny location with other nectar-rich plants. Avoid using pesticides that can harm beneficial insects. Providing a variety of flowering plants throughout the growing season ensures continuous food sources for pollinators.
Monitoring and Maintenance
Regularly inspect your Russian Sage for signs of pests or disease. Remove any affected foliage promptly. Deadhead spent flowers to encourage additional blooms and extend the flowering period.
In late fall, cut back the plant to prepare it for winter. Mulch around the base to protect roots from cold temperatures. With proper care, your Russian Sage will thrive and support pollinators year after year.