Bog Sage

Stunning turquoise flowers appear in spikes on top of tall stems from summer to autumn summer. This tall salvia is perfect for adding a splash of colour at the back of a herbaceous border. It copes well in sun or light dappled shade and the flowers are a magnet for butterflies and bees. Position: full sun or partial shadeSoil: moderately fertile, moist to well drained soilRate of growth: average Flowering period: July to September Flower colour: turquoiseOther features: aromatic foliageHardiness: frost hardy (needs winter protection)Garden care: To prolong flowering remove the flower spikes as soon they start to fade. Apply a generous 5-7cm (2-3in) mulch of well-rotted garden compost or manure around the base of the plant in spring
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