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Salvia patens Seeds - Gentian Sage

Salvia patens
Gentian Sage

4,0/5
3 reviews
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1 reviews

The result is beautiful, all summer long beautiful blue flowers on tall stems and even potted plants survived the winter. Unfortunately, no seeds for sale in 2024, maybe next year? Sorry for not being able to change my previous review.

Jean-François, 22/09/2024

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This plant carries a 6 months recovery warranty

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Sensitive to frost, this beautiful tuberous perennial of Mexican origin is often grown as an annual in our climates. Still the incredible true blue colour of its large, typically shaped flowers fully justifies growing it in any garden. The blooms of this sage brings out and energizes beds, while its resistance to heat and drought make it an ideal candidate for containers. It shows rapid growth and prefers rich, well-drained soils and full sun.
Flower size
3 cm
Height at maturity
65 cm
Exposure
Sun
Annual / Perennial
Perennial
Germination time (days)
60 days
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Sowing period March to April
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Flowering time July to October
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Description

Sensitive to frost, this beautiful sage, also called Salvia patens, is a tuberous perennial of Mexican origin is often grown as an annual in our climates. Still the incredible true blue colour to which it's name Gentian Sage pertains to, of its large, typically shaped flowers fully justifies growing it in any garden. The blooms of this sage brings out and energizes beds, while its resistance to heat and drought make it an ideal candidate for containers. It shows rapid growth and prefers rich, well-drained soils and full sun.

 

Salvia patens is a plant of the Lamiaceae family, like all other sage plants. It is a perennial with an upright growth habit that reaches 60 to 80 cm high and 45 cm wide. Its stems bear large, opposite, pubescent, triangular, green leaves. It flowers in the first year from seed. The inflorescences appear from July to October, but it is in September that it flowers the most. The flowers are grouped in clusters, at the tips of the apical stems. The flowers are 2-3 cm long and are rather large compared to those of most other sage. They are arranged in pairs along the stem, and display an intense, pure 'true blue' colour that can be seen from far away. The flowers are nectar-rich and melliferous, providing nourishment for numerous foraging insects. The root of Salvia patens from which it develops, is thick and tuberous. It is self-seeds easily in light, well-drained soil. 

Gentian sage is an ideal plant for sunny flowerbeds. The blue colour of its flowers blends well with the intensely pink flowers of Salvia microphylla, whose beauty climaxes in September. It can also be interesting to combine it with asters and grey foliages (Armoise, Senecio vira-vira...) that require rather similar growing conditions. 

 

 

Flowering

Flower colour blue
Flowering time July to October
Inflorescence Cluster
Flower size 3 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Annual
Foliage colour green

Plant habit

Height at maturity 65 cm
Spread at maturity 30 cm
Growth rate fast

Botanical data

Genus

Salvia

Species

patens

Family

Lamiaceae

Other common names

Gentian Sage

Origin

Central America

Product reference13451

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Planting and care

Sowing advice: Sow from February to June or from September to October.

Sow the seeds on the surface of moistened, well-drained good quality growing medium. Cover with a thin layer of vermiculite or compost. Seal tightly in a plastic bag and keep at a temperature of 15 to 20° until germination, which will take about 1 to 3 months. Expose to light as this will facilitate germination.

Transplant the plants, when they are big enough to be handled, into 7.5 cm diameter pots. Grow them in a cool place for 10 to 15 days before planting them outdoors after any risk of frost has passed, spacing them 45 cm apart.

In September - October, sow under cover and transplant the young plants outside the following spring. Avoid cold positions with wet soils during the winter.

Growing advice:

Salvia patens requires a very sunny location to flower. Its tuberous root enables it to withstand heat and drought, but also makes the plant sensitive to winter humidity. Gentian sage is planted in spring in fairly rich, perfectly drained, neutral soil. It blooms more generously when fertilizer is applied every fortnight in summer. Removing wilted flower stems prolongs flowering.

In regions where winters are harsher, it is cultivated as an annual. It is possible to lift the tubers from the soil and overwinter them like those of Dahlia. In milder regions, its survival in winter depends mainly on how well the soil is drained. In this scenario, the plant benefits from being cut down to the ground in the spring. It produces new, vigorous shoots and will flower earlier than plants grown as annuals.

To increase the hardiness of this sage, it is advisable to spread a good layer of coarse sand or gravel at the bottom of the planting hole (40 cm deep). To prevent the clump from receiving too much moisture in the winter, it can be covered with a mulch of dead leaves, protected by a 'roof' made of a large tile, Plexiglas, or any other waterproof material, that will be held well above the pile of leaves to allow for ventilation. With this technique, the plant will be able to withstand -12 °C.

In containers, the gentian sage requires a sufficient volume of soil to develop its roots. Choose a 20-30 litres pot that can be stored in a cool, dry, frost-free place in winter. Water with a fertilizer every fortnight in summer to sustain blooming.

16
14,50 € Each

Sowing period

Sowing period March to April
Germination time (days) 60 days

Intended location

Suitable for Meadow, Rockery
Type of use Border, Container
Hardiness Hardy down to -6°C (USDA zone 9a) Show map
Ease of cultivation Amateur
Exposure Sun
Soil pH Neutral
Soil moisture Dry soil, Moist soil, Drainant, riche, humifère
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