The finely-toothed, oval leaves, up to 1.7 inches in length, are green. The attractive foliage is bright golden-yellow and flowers are deep blue.Ī low, spreading perennial, reaching up to 6 x 20 inches, that is native to Eurasia. The intense cobalt-blue appear early to late spring.Ī compact, mat forming perennial, reaching up to 10 inches x 4 feet, with brilliant mid blue flowers.Ī compact, mat forming perennial, reaching up to 10 inches x 4 feet. Moderate growing and upright, mounding in habit, reaching up to 1 x 1 feet. * photo taken by Milan Havlis, owner of central Europe's premier plant nursery The brilliant intense blue flower spikes are borne during early summer. Upright in habit, reaching up to 2 x 4 feet. Hardy zones 3 to 8 in full sun to partial shade. ![]() The blue flowers, up to 0.5 inches wide, are borne in short upright spikes during late spring to mid summer. The narrow, lance-shaped leaves, up to 2.8 inches in length, are mid-green. A low growing perennial, forming a clump reaching a maximum size of 3.3 x 4 ( rarely over 2 ) feet, that is a widespread native of Europe. Veronica austriaca ( Hungerian Speedwell )įormerly called Veronica teucrium. The deep blue flowers are borne on erect stems during early summer. The deeply cut feathery foliage is mid-green. The violet-blue flowers are borne from late spring until first fall frost, as long as old flower spikes are removed.Ī creeping prostrate perennial, reaching up to 4 x 8 inches, that is native to Armenia. The white flowers are borne from early to late summer.įorms an upright perennial clump, up to 2 x 1.9 feet. The lance-shaped leaves are luxuriant mid green. Hardy zones 2 to 8 in full sun to partial shadeįorms a low perennial clump, up to 1 x 2 feet. The blue flowers, up to 0.25 inches across, are borne on short erect spikes from early to late summer. ![]() The lightly-toothed, lance-shaped to pointed oval leaves, up to 1 inch in length. ![]() Hardy zones 3 to 8 in full sun to partial shadeįorms a low perennial clump, up to 1 x 2 feet, that is native to northern Eurasia. The abundant, deep blue flowers are borne on spikes up to 4 inches in length, during early summer though continuing sporadically for the remainder of summer. It is an excellent plant for edging and rock gardens. A mat forming perennial, reaching up to 1 foot x 15 inches, that is native to the European Alps.
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