PRACTICAL GARDENING RESEARCH What to grow. What to buy. How to choose.
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Growing requirements from the plant library. Cultivar and local conditions can change the details.
Care decision
A flowering culinary sage plant with many upright purple flower spikes above oval green leaves.
Culinary sageSalvia officinalis
LightFull sun, ideally in a sheltered growing position. RHS: common sage profile
WaterWater new plants during dry spells; established plants tolerate drought. Container moisture still needs checking. RHS: growing sage
Soil & growing mixWell-drained soil; avoid persistent wetness, particularly through winter. RHS: common sage profile
Mature sizeNC State describes plants up to about 2 feet tall and 2–3 feet wide, with smaller cultivars available. NC State: culinary sage
Growing seasonPerennial foliage with early-summer flowers; winter leaf retention and usable harvest depend on exposure. Wisconsin Extension: culinary sage
Winter & climateWisconsin lists USDA 4a–10b for the species, but some colored selections are less hardy. Verify the cultivar and local winter performance rather than applying that broad range to every sage. Wisconsin Extension: culinary sage
Container fitWell suited to containers. Check mature size and root-space guidance in the reference.
Place & varietyWinter wet, severe cold and the condition of the individual cultivar all influence survival. Illinois specifically notes that golden, purple and tricolor sages are not dependable in zone 5. Do not apply the broadest species rating to every decorative selection. Illinois Extension: sage
Equipment to consider
Evidence & next steps

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