ceratostigma plumbaginoides blooms with blue flowers in july. potsdam, germany

europe colorful leaves lead foliage blue-flowered wildflower petals botany european caryophyllales plumbaginaceae florist botanical germany ceratostigma plumbaginoides blooms blue july hardy leadwort species plant plumbago potsdam flowering family plants flowers nature garden summer leaf natural outdoor flower color flora bloom texture blossom pattern season