Monkshood (Aconitum sp.), also known as wolf's bane, is a large genus of late, summer-blooming perennials native to the northern hemisphere.
Flowers highlighted in this column over the last few months are blooming and thriving, due in great measure, to the conscientious efforts of the Jensen-Olson Arboretum's seasonal gardeners.
One of August's stunning flowers is Lilium "Black Out," an Asiatic hybrid lily. Asiatic lilies generally have large, non-fragrant flowers, unlike their cousins, the Oriental lilies, whose flowers have a heavy, sweet scent.
Merrill Jensen has combined his profession as a horticulturist with his hobby as a photographer in an upcoming lecture he'll lead on the "Flora...
Bighead Knapweed, centaurea macrocephala, is one of the most asked-about plants at the Jensen-Olson Arboretum when it's in bloom. While many knapweeds are listed as highly invasive, C. macrocephala is well-mannered in gardens here in Southeast Alaska.
Ligularia stenocephala, commonly called "The Rocket," is a wonderful summer-blooming perennial that seems to have been designed exclusively for Juneau's cool, wet climate.
Masterwort, Astrantia major, is one of the workhorses of Juneau's summer gardens. This carefree, low maintenance member of the carrot family blooms continuously from high summer into fall with white flowers.
One of our summer blooming primroses, Primula vialii, is also one of the most captivating ones grown at the Jensen-Olson Arboretum in the national Primula collection, recognized by the North American Plant Collections Consortium.
Herbaceous peonies, scientifically known as Paeonia sp., are the aristocrats of the gardening world. These large-flowered, long-lived plants (often easily outliving their original planters) should be included in everyone's garden.
Iris "Gracchus" - this is a very old cultivar of iris that was first introduced to cultivation in Europe in 1884.
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