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How to Grow Sages USA | Care, Pests & Disease Control

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Sage (Salvia officinalis)

A flowering sage spike with purple-blue blooms — “Salvia officinalis (Common Name-"Common sage") in Tashkent Botanical Garden” by Humoyun Mehridinov is licensed under CC BY-SA 4.0. Source: Wikimedia Commons

9 sources cited · Verified

The short answer

Site
6+ hours of sun, soil pH 6–8
Biggest risk
Honey fungus

Sages (Salvia officinalis) — perennial.

This crop carries an unusually heavy problem load: 5 diseases, 6 pests and 0 nutrient issues are documented for it, so most of the effort in growing it well goes into prevention.

Core growing advice on this page is checked against named horticultural and university-extension sources — see References.

Diseases

A slug feeding on a sage leaf — “Salbei Schnecken Fraß-1-Josef Schlaghecken” by Schlaghecken Josef is licensed under CC BY 4.0. Source: Wikimedia Commons
“Salbei Schnecken Fraß-1-Josef Schlaghecken” by Schlaghecken Josef is licensed under CC BY 4.0. Source: Wikimedia Commons.
Honey fungus

Armillaria spp.

Verticillium wilt

Verticillium dahliae

Root rot (sage, causal agent not yet confirmed)
Foot and root rot (general)
low

RHS names this directly.

Pests

A caterpillar curled on a sage leaf — “Salbei Raupenfraß -4-Josef Schlaghecken” by Schlaghecken Josef is licensed under CC BY 4.0. Source: Wikimedia Commons
“Salbei Raupenfraß -4-Josef Schlaghecken” by Schlaghecken Josef is licensed under CC BY 4.0. Source: Wikimedia Commons.
Slugs

Gastropoda (slugs, various spp.)

Two-spotted red spider mite with silk threads, magnified — Gilles San Martin, CC BY-SA 2.0
Gilles San Martin, CC BY-SA 2.0
Glasshouse red spider mite (two-spotted spider mite)

Tetranychus urticae

Rosemary beetle

Chrysolina americana

Sage leafhopper (leafhoppers)

Eupteryx spp.

Spittlebug (cuckoo spit)

Philaenus spumarius

Capsid bugs

Miridae

Quick Facts

A flowering sage spike with purple-blue blooms — “Salvia officinalis (Common Name-"Common sage") in Tashkent Botanical Garden” by Humoyun Mehridinov is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Salvia officinalis (Common Name-"Common sage") in Tashkent Botanical Garden” by Humoyun Mehridinov is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Factor Value
Soil pH 6 - 8
Sunlight 6-6 hours direct sun
Minimum survivable temp -15C
Soil texture Chalk, loam, sand
Drainage Well-drained
Lifecycle perennial
Edible parts leaves

At a Glance

A flowering sage spike with purple-blue blooms — “Salvia officinalis (Common Name-"Common sage") in Tashkent Botanical Garden” by Humoyun Mehridinov is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Salvia officinalis (Common Name-"Common sage") in Tashkent Botanical Garden” by Humoyun Mehridinov is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Salvia officinalis Sage Honey fungus Powdery mildew Verticillium wilt Root rot (sage, causal… Foot and root rot (gene… Slugs Glasshouse red spider m… Rosemary beetle Sage leafhopper (leafho… Spittlebug (cuckoo spit) Capsid bugs DISEASES PESTS

Soil & Growing Conditions

Close-up of grey-green sage foliage — “Sage0” by Tiefnig0815 is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Sage0” by Tiefnig0815 is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.

Soil pH range

6 8

Span reflects genuine variation between the cited authorities, not a single agreed figure.

Growth Stages

Sage blooming in its natural habitat on a dyke — “Hessenaue, blooming sage on dyke” by Gerda Arendt is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Hessenaue, blooming sage on dyke” by Gerda Arendt is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Stage BBCH Notes
Propagation 0 Propagate by seed sown in spring or softwood cuttings in early summer (RHS).
Establishment 3 Establishes as a bushy evergreen sub-shrub in full sun on well-drained soil (RHS).
Flowering 6 Produces pale blue flowers in early summer, typical of the Lamiaceae family (RHS).
Mature shrub 9 Reaches full maturity over 2-5 years, 0.5-1m in height and spread (RHS).

Harvest & Storage

Close-up of grey-green sage foliage — “Sage0” by Tiefnig0815 is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Sage0” by Tiefnig0815 is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.

When to pick: Common sage can be grown from seed, but plants will take at least a year to grow large enough to reach harvesting size, and it is much quicker and easier to start with bought plants or cuttings (RHS)

Storage

Fresh and dried leaves used for culinary purposes (RHS)

References

  1. country=INTL

  2. country=US

  3. Tier 1. RHS factsheet on glasshouse red spider mite (two-spotted spider mite), naming tomato and strawberry among the host plants affected under glass or in a polytunnel.

  4. country=UK

  5. country=UK

  6. country=UK

  7. country=UK

  8. country=UK

  9. Directly fetched and verified (canonical URL differs from requested URL /biodiversity/slugs -> redirects to /biodiversity/slugs-and-snails). RHS explicitly advises against slug pellets (even organic) due to wildlife harm, and cites RHS's own controlled trial finding no damage reduction from physical barriers (copper tape, bark mulch, eggshell, grit, wool) -- while also noting some other studies have shown copper barriers to repel slugs, a preserved disagreement rather than a silently resolved one. Details Nemaslug (Phasmarhabditis hermaphrodita) biological control including application temperature range and its lack of effect on snails specifically.

9 independent sources are cited for this crop. Where they disagree - soil pH is the clearest case - every figure is preserved rather than averaged into false precision.

Frequently Asked Questions

What soil pH do sages need?

A pH of about 6–8. That span reflects genuine variation between the authorities we cite rather than a single agreed figure — the References section lists each source's exact range.

What problems affect sages?

Our data links 5 diseases and 6 pests to this crop. See the sections above for each one and how to manage it.

Plan next season before the problems start

Almost everything on this page resolves to your own frost dates rather than the calendar — the last spring frost moves by roughly two months between zone 3 and zone 10. The USA Garden Planner works from your zone so the timing is already decided before the season starts.

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Instant PDF download · Written for US growing conditions

SoilCommander Editorial Team

US vegetable growing guides · Checked against USDA & Cooperative Extension guidance

Every SoilCommander guide is written and maintained by our editorial team for real US growing conditions, and checked against USDA hardiness and frost-date data and Cooperative Extension growing advice before publication.

Vegetable Growing Guides USA

Last verified 2026-08-29

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