When to plant Russian sage 'Blue Spire'?

Russian sage 'Blue Spire' thrives in full sun and demands excellent drainage, making it ideal for sandy, loamy, or chalky soils. It will not tolerate heavy clay or waterlogged ground, so if your soil is prone to sitting wet, work in plenty of grit or coarse sand before planting. Choose an open, sunny position where the plant will receive at least six hours of direct sunlight daily; shade leads to weak, floppy growth. Plant container-grown specimens in March, April, or May, or wait until September or October if you prefer autumn planting. Dig a hole roughly twice the width of the root ball but no deeper—the top of the root ball should sit level with the surrounding soil surface. Space plants 75 cm apart to allow for their mature spread of 60–90 cm and to ensure good air circulation, which helps prevent mildew. Backfill with the excavated soil without adding compost or manure; Russian sage actively prefers lean, low-nutrient conditions and will grow leggy in rich ground. Firm gently around the roots and water in thoroughly to settle the soil, then leave it. This is a drought-tolerant perennial once established, so resist the temptation to keep watering. A light mulch of gravel or grit around the base is beneficial, especially on heavier soils, as it improves surface drainage and reflects heat. Avoid organic mulches like bark or compost, which retain moisture and can encourage root rot. Staking is not normally required if the plant is grown in full sun and lean soil.