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Salvia uliginosa ( Blue Spike Sage) Herb Plant


Some Herbs may be too tall for our standard packaging and will be trimmed to fit. This will not be detrimental to the plant but will mean that these herbs will flower later in the year.

The Blister packs used to protect our beautiful herbs during transit are made from 100% recycled plastic and can be recycled kerbside.

Blue Spike Sage (Salvia uliginosa) Herb in 1 Litre Pot 

This Salvia, which also has the common name "Bog Sage" and which, despite the implications of this rather unattractive name, will thrive in most soils and situations. It does enjoy moist, but not 'boggy' conditions, producing clear blue flowers on majestic tall stems from June. A native of Brazil, Uruguay and Argentina, where it grows on the margins of marshes and swamps, will reach a height of 0.9m - 1.8m, with a spread of up 60 cm. A great addition to the back of the Herb garden, mainly for its looks. It may be beneficial to protect the underground shoots with a bit of extra bark or straw overwinter in exposed areas.

The Ideal time for cutting back flowering shrub sages, is the spring once new growth can be seen from the base and risk of frost has past. Cut up to half the plant back shaping as needed. If Sages are becoming leggy then a light summer cut may be required to encourage flowers and new growth. Dead heading the old flowers will encourage new flowers all season.

Herb Usage

Blue Spike Sage is grown as a decorative border plant this sage is not renowned for culinary or medicinal use. It is best grown to admire the striking floral display which is also popular with pollinating insects. 

Buy Blue Spike Sage Online

Our Potted Blue Spike Sage herb plants are generally available to buy online between March and September.


Salvia uliginosa ( Blue Spike Sage) Herb Plant
Aspect/Site Full sun/Semi-shade
Soil Type Free draining soil
Flower Colour Blue
Height 150cm
Spread 100cm
Latin Name Salvia uliginosa
Hardiness RHS rating H4 - Hardy average winter
Culinary None
Scented Foliage
Medicinal/Cosmetic None
Flowering/Harvest/Interest Summer
Special Features Pollinator Friendly
Type of Garden Cottage/Informal