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Salvia So Cool Pale Blue

Salvia microphylla So Cool Pale Blue
Sage

4,5/5
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A bit scrawny and a few leafless branches, but I'm confident as it resembles the other branches that I have in my garden at the moment.

jean-michel, 19/04/2023

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This plant carries a 12 months recovery warranty

More information

Value-for-money
A shrubby sage with a regular habit, forming a small rounded and dense bush. It is covered with honey-scented flowers of a very bright mauve blue for many weeks, between May and October, provided the soil remains slightly moist in summer. Its floribundity and its small semi-evergreen aromatic leaves make it a precious ally for sunny and warm terraces and gardens. Drought-tolerant, but only moderately hardy (-10°C (14°F)), it will need protection in cold regions.
Flower size
2 cm
Height at maturity
70 cm
Spread at maturity
70 cm
Exposure
Sun
Hardiness
Hardy down to -9°C
Soil moisture
Dry soil, Moist soil
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Best planting time April to May
Recommended planting time April to May, September to October
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Flowering time May to October
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Description

Salvia 'So Cool Pale Blue' is a variety of shrubby sage that forms a small rounded and dense bush covered with very bright mauve-blue flowers, quite rare in this type of sage. This plant blooms continuously throughout summer if the soil does not dry out too much, delighting bees and gardeners. Its small light green aromatic leaves are more or less evergreen in winter. It is an excellent border plant that also grows very easily in a pot. Moderately hardy, it will need protection in cold regions.

Salvia 'So Cool Pale Blue' belongs to the large family of Lamiaceae, which offers gardeners many aromatic and ornamental plants (thyme, rosemary, catmint, agastache...). This variety comes from a group of salvias native to the mountains of Central America, which gives them a respectable hardiness of about -10°C (14°F). These salvias are woody: their stems harden and form wood, which will, however, be damaged by pronounced and prolonged frost. The foliage is semi-evergreen in mild climate, small and ovate, and deliciously aromatic, with hints of mint and lemon. This fragrance is particularly pronounced in hot and dry weather, and the essential oils often make the leaves a bit sticky.
Between May and October (or even longer if the weather is mild), the 'So Cool Pale Blue' sage produces numerous small two-tone flowers in a charming bluish-purple. The violet calyx enhances the flower colour. It will reach approximately 70 cm (28in) in all directions.

The origins of the 'So Cool Pale Blue' shrubby sage give it good adaptability to sunny, dry, and even limestone and rocky soils: it will grow without problems in a mild and sunny climate, but it is best grown in a pot in regions with a rainy and cold winter, allowing it to be brought inside as soon as frost is forecast. If you want to plant it outside in a cold region, remember to provide it with a well-protected location, sheltered from cold winds. Perfect in rock gardens, borders and pots, this sage will form beautiful associations with other similar plants such as Mirage Salmon or Mirage Violet, as well as with perennials like common marjoram, Tiny Jackpot eryngo, or grasses like beautiful feather grass and Bouteloua gracilis.

Salvia So Cool Pale Blue in pictures

Salvia So Cool Pale Blue (Flowering) Flowering
Salvia So Cool Pale Blue (Plant habit) Plant habit

Flowering

Flower colour mauve
Flowering time May to October
Inflorescence Cluster
Flower size 2 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Semi-evergreen
Foliage colour medium green
Aromatic? Fragrant foliage when creased
Foliage description Minty-lemon fragrance

Plant habit

Height at maturity 70 cm
Spread at maturity 70 cm
Growth rate fast

Botanical data

Genus

Salvia

Species

microphylla

Cultivar

So Cool Pale Blue

Family

Lamiaceae

Other common names

Sage

Origin

Cultivar or hybrid

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Planting and care

Plant Salvia 'So Cool Pale Blue' after spring frosts in cold climates, in September-October in hot and dry climates. Plant it in light, ordinary, porous, rocky soil, even limestone, not too poor though to support its flowering. This plant prefers sunny situations or partial shade in hot climates. It requires regular watering in autumn and spring if the weather is very dry, in order to flower abundantly. In very poor soil, incorporate some well-rotted compost or leaf compost. Mulch it in winter, in the coldest regions, and protect it from the cold as much as possible. Place it in the warmest corner of the garden, in full sun, against a south-facing wall, on a rocky or sandy slope, in any substrate that does not retain moisture which would be fatal to it in winter. Under these conditions, it can withstand brief frosts of around -10°C (14°F). It thrives well in pots, allowing gardeners to store it away in winter.

This sage has no specific enemies or diseases.

Planting period

Best planting time April to May
Recommended planting time April to May, September to October

Intended location

Suitable for Meadow, Rockery
Type of use Border, Edge of border, Container, Slope
Hardiness Hardy down to -9°C (USDA zone 8b) Show map
Ease of cultivation Amateur
Planting density 3 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Moist soil, well-drained, fertile.

Care

Pruning instructions Cut the faded flowers regularly to promote new flowering. At the end of winter, shorten the branches by 1/3 and remove dead wood. Never prune before the end of winter.
Pruning Pruning recommended once a year
Pruning time April
Disease resistance Very good
Overwinter Can be left in the ground
4,5/5
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