I'm thrilled that Mt. Cuba Center in Greenville, DE (zone 7A/6B) is evaluating heucheras from Terra Nova, The Primrose Path and Thiery Delabroye for foliar and floral display, habit, winter hardiness, summer heat tolerance, cultural adaptability, and disease and pest resistance.
One set of plants is under shade cloth and another set in sun. The trial garden is 15,000 sq. feet designed to accomodate extensive sun and shade trials of native plants. A most tranquil setting of 600 acres and my favorite place to visit.
http://www.mtcubacenter.org/
Heuchera americana - wild collected
Heuchera americana
Heuchera 'Autumn Leaves'
Heuchera 'Beaujolais'
Heuchera 'Berry Marmalade'
Heuchera 'Berry Smoothie'
Heuchera 'Blackbird'
Heuchera 'Blackout'
Heuchera villosa 'Bronze Wave'
Heuchera 'Brownies'
Heuchera 'Caramel'
Heuchera 'Caroline'
Heuchera 'Chocolate Veil',
Heuchera 'Christa'
Heuchera 'Citronelle'
Heuchera 'Color Dream'
Heuchera 'Crystal Spires'
Heuchera americana 'Dale’s Strain'
Heuchera 'Dark Chocolate'
Heuchera 'Dark Secret'
Heuchera 'Electra'
Heuchera 'Electric Lime'
Heuchera 'Encore'
Heuchera 'Fire Chief'
Heuchera 'Frosted Violet'
Heuchera 'Georgia Peach'
Heuchera 'Ginger Peach'
Heuchera 'Green Spice'
Heuchera 'Guardian Angel'
Heuchera 'Harmonic Convergence'
Heuchera 'Hearts on Fire'
Heuchera 'Hercules'
Heuchera 'Jade Gloss'
Heuchera 'Kassandra'
Heuchera longiflora
Heuchera villosa var. villosa 'Autumn Bride'
Heuchera americana 'Malachite'
Heuchera 'Mars'
Heuchera 'Midnight Bayou'
Heuchera 'Mini Mouse'
Heuchera 'Mint Julep'
Heuchera 'Miracle'
Heuchera 'Molly Bush
Heuchera 'Montrose Ruby'
Heuchera 'Moonlight'
Heuchera 'Mystic Angel'
Heuchera 'Obsidian'
Heuchera 'Peach Crisp'
Heuchera 'Pinot Gris'
Heuchera 'Pinot Noir'
Heuchera 'Pistache'
Heuchera 'Plum Pudding'
Heuchera 'Purple Mountain Majesty'
Heuchera 'Purple Petticoats'
Heuchera 'Quilters' Joy'
Heuchera 'Rachael'
Heuchera 'Raspberry Chiffon'
Heuchera 'Raspberry Ice'
Heuchera 'Root Beer'
Heuchera 'Rose Majesty'
Heuchera 'Rose Mirrors'
Heuchera 'Royal Velvet'
Heuchera 'Saturn'
Heuchera 'Shenandoah Mountain'
Heuchera 'Silver Light'
Heuchera 'Silver Lode'
Heuchera 'Silver Scrolls'
Heuchera 'Southern Comfort'
Heuchera 'Stainless Steel'
Heuchera 'Steel City'
Heuchera 'Stormy Seas'
Heuchera 'Strawberry Swirl'
Heuchera 'Tara'
Heuchera 'Tiramisu'
Heuchera 'Velvet Night'
Heuchera 'Vienna'
Heuchera villosa 'Mocha'
Heuchera 'Apple Crisp'
Heuchera 'Pear Crisp'
Heuchera Strawberry Swirl'
Heuchera 'Garnet'
Heuchera 'Cajun Fire'
Heuchera 'Creole Nights'
Heuchera 'Spellbound'
Heuchera 'Midnight Rose'
Heuchera 'Delta Dawn'
Heuchera 'Palace Purple'