How to Prune Salvia

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Salvia (Salvia spp.), commonly known as sage, is a plant group that ranges from annuals to woody perennials hardy from U.S. Department of Agriculture plant hardiness zones 4 through 11. Many varieties are used for cooking and present fragrant ornamental foliage. Aromatic blooms range from white to shades of pink, red or purple-blue. Sages may flower from spring through fall, or deliver seasonal flushes of color. Perennial sages often develop old, woody stems and require pruning to stay attractive. This cleans up the plant and elicits a second burst of blooms and growth. If your sage looks a little listless, a haircut may be all it needs.

How to Prune Salvia
(KatyJane Conlin/Demand Media)

Things You'll Need

  • Sharp, bypass pruning shears
  • Garden scissors
  • Household disinfectant
  • Gardening gloves
Step 1

Sterilize your pruning implements with household disinfectant before and after your prune your sage to prevent the spread of disease. Use sharp, bypass pruning shears for clean, healthy cuts on woody stems. Garden scissors shape up soft annual and perennials stems. Wear gloves to protect your hands.

KatyJane Conlin/Demand Media
Step 2

Prune off dead and damaged sage stems any time of year, but leave most stems until spring when the plant begins to grow again and danger of frost has passed. The old stems, though unsightly, protect new growth. When new shoots emerge at the plant's the base and on stems, cut old woody stems back to new growth. Cut dead, soft stems to the ground.

KatyJane Conlin/Demand Media
Step 3

Trim soft-stemmed perennial sages in the summer to encourage re-blooming. Wait until after the first burst of blooms, then remove at least half of the plant. If you have a mass planting of sage, cut plants at different levels to keep a natural look. The plants will reward you by bouncing back quickly with renewed vigor and lots of blossoms.

KatyJane Conlin/Demand Media
Step 4

Deadhead sage to remove old flower spikes throughout the growing season. This helps encourage more blooms, shape the plant and neaten its appearance. Hold the end of a spent flower spike and move down with your other hand until just below the bloom. This method prevents you from chopping off a stalk you don't want to cut.

KatyJane Conlin/Demand Media
Step 5

Pick up all fallen leaves, spent flower heads and pruned stems around your sage. If there is any sign of disease, dispose of the debris instead of composting it. This reduces the chances of fungal infections spreading. Always check for signs of pests, but sages have few problems with insects.

KatyJane Conlin/Demand Media

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