Heuchera ‘Carnival Watermelon’ – A villosa hybrid which is part of the Carnival Series, this cultivar bears large bronze to cherry-pink leaves with a contrasting silver overlay. This 2014 introduction may shift a bit towards green by midsummer, but spring flush and cooler temperatures will revive the cheerier pink tones. Tolerates high humidity. Grows 12″ tall by 16″ wide. Z4.
Heuchera ‘Carnival Coffee Bean’ – A part of Darwin Perennial’s Carnival Series with gold to mocha-coloured foliage dappled with faint silvery highlights. It is a heat-tolerant villosa hybrid that tolerates sun to shade in coastal British Columbia. ‘Coffee Bean’ is reliably evergreen in mild regions and bears white flowers from late spring to early summer. Grows 10-12″ high by 14″. Zone 4.
Heuchera ‘Carnival Limeade’ – A large-leaved villosa-type with eye-catching chartreuse to lime green (with a silvery overlay) year-around foliage. It has a dense mounding growth habit that makes it ideal for part shade to shade container plantings. Tiny creamy-white flowers are produced in May and June. May attract hummingbirds. Grows 10-12″ high by 14″ wide. Zone 4.
x Heucherella ‘Buttered Rum’ – A more reliably evergreen Heucherella with everchanging foliage tones of caramel brown and chocolate, which shifts to rose-red with the onset of cooler weather. The interesting maple-like leaves are deeply cut on this Blooms of Bressingham introduction. White flowers from late spring to early summer. Grows 8-10″ tall by 16″ wide. Zone 4.
Heuchera ‘Paprika’ – Finally, a Heuchera with foliage that approaches orange tones – although some cherry-pink can be expected, with silvery highlights between the veins. This Terra Nova introduction bears tiny white flowers on reddish stalks from May to June. ‘Paprika’ will make a great addition to fall or winter planters. Evergreen. Grows 8″ tall by 16″ wide. Zone 4.