Abstract: A new cultivar of hybrid Coreopsis named ‘Star Cluster’ characterized by its large inflorescences with overlapping ray florets that are white in color with small purple eyezones that under cool growing temperatures develop larger eyezones and become suffused with purple first on the petal margins and then in the center of the petals, the ability to bloom from June until frost in Massachusetts, its heavy blooming habit, its well-branched sturdy stems, its vigorous growth habit with healthy foliage, and its reliably perennial habit with cold hardiness at least to U.S.D.A. Zone 5.

Abstract: A new cultivar of Physostegia plant, ‘Pink Manners’, characterized by its flowers that are light rose pink in color, its clump-forming growth habit due to its very short rhizomes, and its mature height of 76 to 107 cm.

Abstract: A new cultivar of hybrid Coreopsis named ‘Mercury Rising’ characterized by its exhibits large inflorescences with ray florets that are solid red in color throughout the growing season with white tips appearing when plants are grown under hot temperatures, its vigorous growth habit with healthy foliage, its low growing plant habit, spreading outward from above ground stems that are well branched, its reliably perennial growth habit and cold hardiness at least in U.S.D.A. Zone 5, and its very good resistance to powdery mildew and leaf spot.

Abstract: A new cultivar of hybrid Coreopsis named ‘Red Satin’ characterized by its sturdy and upright plant habit, its inflorescences with ray florets that are dark red in color, its thread-like foliage, its production of underground rhizomes that survive conditions of typical U.S.D.A. Zone 5 winters when planted in the landscape, and its sterile inflorescences and due to the lack of seed production; the plants remain relatively resistant to powdery mildew longer into the season than is typical for cultivars of thread-leaf type Coreopsis.

Abstract: A new cultivar of Astilbe named ‘Amber Moon’ that is characterized by its foliage when grown in bright shade that emerges orange-yellow in color, changing to yellow when fully expanded, and finally changing to yellow-green with a whitish silver blush after flowering, its flowers that are pink in color, and its very high heat tolerance in comparison to most cultivars of Astilbe.

Abstract: A new cultivar of Lychnis, ‘Lipstick’, characterized by its sturdy and well-branched erect stems up to 45 cm in height, its large flowers that are red in color, its red flowers that are large in comparison to the species, its foliage that is red-purple in color when young and mature to dark green suffused with purple with the purple coloration maintained well into the season, its long-lived habit and its reliable cold hardiness at least to U.S.D.A. Zone 5.

Abstract: A new cultivar of hybrid Coreopsis named ‘Daybreak’ that is characterized by its compact plant habit reaching about 30 cm in height and 50 cm in spread, its prolific blooming habit from late June until frost in Connecticut, its large inflorescences with ray florets that are golden yellow in color with very large red eye zones that expand to nearly cover the entire ray floret in cooler temperatures, its near sterility when grown under typical garden conditions without the requirement for deadheading of spent blooms for continuous bloom and its ability to be readily propagated by stem cuttings throughout the growing season.

Abstract: A new cultivar of hybrid Coreopsis named ‘Radioactive’ that is characterized by its large inflorescences with ray florets having an upper surface with a base color that is gold and heavily suffused with scarlet red with an overall effect of red-orange with golden tips appearing when plants are grown under hot temperatures and having a lower surface that has red centers and gold margins, its vigorous growth habit with healthy foliage, its low growing plant habit, spreading outward from above ground stems that are well branched without the need for pinching, its very good resistance to powdery mildew and leaf spot, and its reliably perennial habit in U.S.D.A. Zone 5.

Abstract: A new cultivar of hybrid Coreopsis plant named, ‘Peach Sparkle’, that is characterized by its densely branched, compact, sturdy plant habit, its small, nearly sterile inflorescences with ray florets that are soft yellow in color with a large maroon eye, its floriferous and long bloom season that does not require deadheading, its cold hardiness at least to U.S.D.A. Zone 5, and its resistance to powdery mildew and leaf spot.

Abstract: A new cultivar of hybrid Coreopsis plant named, ‘Razzle Dazzle’, that is characterized by its densely branched, compact, sturdy plant habit, its small, nearly sterile inflorescences with ray florets that are white in color with a large bright purple eye, its floriferous and long bloom season that does not require deadheading, its cold hardiness at least to U.S.D.A. Zone 5, and its resistance to powdery mildew and leaf spot.

Abstract: A new cultivar of hybrid Coreopsis named ‘Starbright’ that is characterized by its compact plant habit, its nearly sterile florets result in a floriferous and long bloom season that does not require deadheading with bloom commencing in mid June and lasting until hard frost in Connecticut, its very large inflorescences with ray florets that are light yellow in color with a maroon eye zone, its cold hardiness at least to U.S.D.A. Zone 5, and its resistance to powdery mildew and leaf spot.

Abstract: A new cultivar of hybrid Coreopsis named ‘Berry Chiffon’ characterized by its sturdy, upright plant habit, its medium sized inflorescences with ray florets that are creamy white in color with a large plum colored eye zone, its nearly sterile flowers that exhibit a floriferous and long bloom season that does not require deadheading, its cold hardiness to at least U.S.D.A. Zone 5, and its resistance to powdery mildew and leaf spot.

Abstract: A new cultivar of hybrid Coreopsis named ‘Polaris’ that is characterized its compact plant habit reaching 37.5 to 45 cm in height and an average of 37.5 cm in spread, its prolific blooming habit from mid June until frost in Connecticut, its large inflorescences with ray florets that are are solid white in color with no eye zone (even under cool growing conditions), its relatively sterile inflorescences when grown under typical garden conditions that do not require deadheading of spent blooms for continuous bloom, and its reliably perennial habit in U.S.D.A. Zone 5.

Abstract: A new cultivar of hybrid Coreopsis named ‘Red Chiffon’ characterized by its sturdy and well-branched plant habit reaching a 45 cm in height and 55 cm in width, its medium sized inflorescences with ray florets that are light yellow in color with a large bright red eye zone, its nearly sterile flowers that exhibit a floriferous and long bloom season that does not require deadheading with bloom commencing in early July until frost in Connecticut, its cold hardiness to at least U.S.D.A. Zone 5, and its resistance to powdery mildew and leaf spot.

Abstract: A new cultivar of hybrid Coreopsis plant named ‘Sunsplash’ that is characterized by its compact plant habit reaching about 30 cm in height and 50 cm in spread, its prolific blooming habit from mid June until frost in Connecticut, its large inflorescences with ray florets that are bright red in color with gold streaks near the apex with the coloration retained throughout the growing season, and its relatively sterile inflorescences when grown under typical garden conditions and lack the need for deadheading of spent blooms for continuous bloom.

Abstract: A new cultivar of hybrid Coreopsis named ‘Enchanted Eve’ that is characterized by its compact plant habit reaching an average of 23 cm in height and 50 cm in width, its nearly sterile florets result in a floriferous and long bloom season that does not require deadheading with bloom commencing in late-June and lasting until frost in Connecticut, its large inflorescences with ray florets that are light yellow in color with a two-toned red eye that expands to cover nearly the entire surface of the ray florets in cooler temperatures, its cold hardiness at least to U.S.D.A. Zone 5a, and its resistance to powdery mildew and leafspot.

Abstract: A new cultivar of hybrid Coreopsis named ‘Red Elf’ that is characterized by its compact plant habit, its nearly sterile florets result in a floriferous and long bloom season that does not require deadheading with bloom commencing in late-June and lasting until frost in Connecticut, its large inflorescences with ray florets that are deep velvety red in color, its cold hardiness at least to U.S.D.A. Zone 5a, and its resistance to powdery mildew and leaf spot.

Abstract: A new cultivar of hybrid Coreopsis named ‘Starlight’ that is characterized by its compact plant habit, its nearly sterile florets result in a floriferous and long bloom season that does not require deadheading with bloom commencing in mid-June and lasting until hard frost in Connecticut, its large star-shaped inflorescences with ray florets that are cream-white in color with a purple streak at the base that expands to cover almost the entire surface of the ray florets in cooler temperatures, its cold hardiness at least to U.S.D.A. Zone 5a, and its resistance to powdery mildew and leaf spot.

Abstract: A new cultivar of hybrid Coreopsis named ‘Starstruck’ characterized by its compact plant habit, its floriferous and long bloom season that does not require deadheading, its nearly sterile, large inflorescences with ray florets that are white in color with a large purple eye that expands to cover the surface of the ray florets in cooler temperatures, its cold hardiness at least to U.S.D.A. Zone 5a, and its resistance to powdery mildew and leaf spot.

Abstract: A new cultivar of hybrid Coreopsis named ‘Charlize’ characterized by its compact plant habit reaching an average of 40 cm in height and 65 cm in width, its near sterility, its floriferous and long bloom season that does not require deadheading with bloom commences in late June and lasting until frost in Kensington, Conn., its medium sized inflorescences with fully double ray florets that are light yellow in color, its lack of requirement for vernalization to initiate flowering, its cold hardiness to at least U.S.D.A. Zone 5 and its resistance to powdery mildew and leaf spot.