Centaurea nigra ssp. rivularis - Garden cornflower

continental : Locate the the Centaurea nigra ssp. rivularis In a sunny place.
The Centaurea nigra ssp. rivularis is a very rustic plant, that can bear very harsh temperatures; it is advisable to grow it in the garden.

alpine : Plant which needs at least a few hours a day of solar light.
The Centaurea nigra ssp. rivularis is surely a rustic plant, it’s possible to grow it in the garden year round.

mediterranean : We suggest placing the the Centaurea nigra ssp. rivularis so that it can receive at least a few hours of direct solar rays.
The Centaurea nigra ssp. rivularis is a rustic plant, which can be planted in the garden during the whole year.

continental : Let’s try to always keep the growing substratum of the the Centaurea nigra ssp. rivularis damp, watering very frequently with 1,5 litres of water; if the weather is very hot and dry we even water every 0-1 weeks.

alpine : As the hot season arrives, these plants need abundant and regular watering, using 0,5 litres of water, which keep the soil cool and damp; let’s water every 1-2 weeks, or even more often if it is very hot.

mediterranean : The Centaurea nigra ssp. rivularis loves damp and cool soils, therefore it is necessary to water it very often, keeping the soil slightly damp; in any case it is always advisable to avoid water stagnation and excess watering: it is best to water every -0-0 weeks.

Fertilization Centaurea nigra ssp. rivularis : During the summer months let’s continue with the periodical fertilizations; every 15-20 days let’s add a specific fertilizer for flowering plants to the irrigating water.