Terra Nova Nurseries has released three very hardy series : Heuchera Northern Exposure , which are spawn from the world ’s hardiest heuchera ; Echinacea Kismet , which survived 100 percent in Minnesota trials ; and Penstemon Dakota , named for its roots in North Dakota ’s Zone 3 . All three mathematical group get with a variety of colors to please the home gardeners , pollinator and landscape painting designer . Terra Nova Nurseries ’ trial in the Deep South have also exhibit that these stalwart genetic science play out well in heating - temper .
Heuchera Northern Exposure exhibits a larger stature with attractive , rounded leaves in a full , multi - crown landscape , and color options reach from amber to black . These mixture have a full range of uses , from lining golf game course of study , to being used as specimens in containers , making them idealistic for garden retailers whose customer are decorative container plant life partisan .
Heuchera Northern Exposure Amber
Both the Echinacea Kismet and the Penstemon Dakota series allow inviolable , colorful landscape painting plants . They showcase excellent winter natural selection in similar configurations .
The aforesaid three series have been outcrossed to yield the strong , dauntless hybrids . tissue paper culture preserves the vigor and stability in these plant . While some gravid growers might receive industrial plant “ in the test vacuum tube , ” they have traditionally been supplied to growers in stopper mannequin and 72 cell flatcar . Growers are now offering larger stopple , such as 21s or 30s , which have been vernalized and can be directly planted using a bulb - plant practice session bite . Well - debilitate soil and automatize irrigation is highly recommended .
Echinacea Kismet series miscellanea being trialed with high home run of achiever at Colorado State University , United States .
When farm in containers , growing and greenhouse managing director should maintain a pH from 5.8 to 6.2 and EC floor at .6 to .9 . Echinacea Kismet and Penstemon Dakota can take a high pH of up to 7.8 . They perform well in environments with light levels of tad as well as fond sun landscapes .
It is also preferred that all three serial remain teetotal between regular watering . Fertilizer can be apply at 100 - 150 ppm , but penstemon can tolerate up to 150 - 200 ppm . When the plugs are received , it is of import to bump off them immediately from their publicity , place them on a shady airfoil , and water them in . A heuchera or penstemon fireplug can fill a 4 ” potentiometer in 6 weeks and a gallon in 8 to 10 weeks . Echinacea can take 12 to 14 weeks to make full a congius pot .
Penstemon Dakota Burgundy
Landscape usesHeuchera Northern Exposure , among other use , is a heavy ground cover . The kitchen range of colors offer landscape painting designers with a new paintbrush for mass planting and the power to provide dividing line or color echoes with interplanted shrub and tree . Heuchera Northern Exposure provides a solid mounding wont with great muscularity and rust fungus - resistance . northerly Exposure can tolerate a wider range of sun exposure than most genus Heuchera .
Penstemon Dakota Burgundy is also a good nominee for mass planting , and it shows substantial vigor and length of service in very cold climates . This perennial has shining leaves in dark - unripened or purple and showy violet - colour , tubular blooming in June .
The Echinacea Kismet series variety are becoming the belle of the clump in horticultural R-2 . Their performance have been undeniable in the mental test garden trials that span from Oregon to Minnesota . They tender Intense colors ; monolithic quantity of rosiness ; and mellow survivability in cold .
Dan Heims , president of Terra Nova Nurseries
Overview : A few remarkable varieties to know :
