Penstemon digitalis - Beard tongue

Fertilization Penstemon digitalis : In autumn we must plant a good quantity of organic fertilizer of humus at the base of the shrubs . This type of fertilization, besides improving the mixture of the soil, makes macroelemnts, prevalently nitrogen, available for 3-4 months. In this manner the soil near our shrubs has a source of nitrogen which will be prolonged until the next spring.

continental : plant which needs to be exposed to direct sunrays.
In autumn these plants are grown in the garden; they can tolerate temperatures a few degrees below zero without problems.

alpine : Let's locate the The Penstemon digitalis in a very luminous place, preferably sunny.
Autumn temperatures are easily tolerated by the The Penstemon digitalis which usually doesn’t get damaged by short freezing; if the temperatures should go below -5°C, let’s protect our plant with a non-woven fabric.

mediterranean : These plants favour sunny exposures, where they can enjoy, even for the whole day, some direct solar rays.
The Penstemon digitalis can stand temperatures a few degrees under zero, therefore they can be usually cultivated as garden plants.

continental : Let’s water every 1-2 weeks with 1-2 buckets of water, or even more often if the weather is hot and dry; we should always try to keep the ground slightly damp.

alpine : Water regularly, every 2-3 weeks, wetting the soil thoroughly by using 0-1 buckets of water and keeping it always a bit moist, although avoiding to soak it too much.

mediterranean : For a balanced development these plants need constant and abundant dampness; during this time of year it is good to water frequently, about 2-3 buckets of water at least every 0-1 weeks.