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Perennials

Delphinium elatum Guardian Series
This series rectifies the standard delphinium problems of unpredictability in habit and inconsistency in timing. - By Paul Pilon
Published Volume 15 Number 9 · GPN - Greenhouse Product News
Delphinium grandiflorum 'Summer Nights'
This early-blooming, well-branched, dwarf delphinium can be grown and forced easily. - By Paul Pilon
Published Volume 14 Number 4 · GPN - Greenhouse Product News
Produced as a bedding plant or cut flower, this dianthus works as a perennial, too. Dianthus 'Bouquet Purple' has been produced as a bedding plant or cut flower for a few years, and it is still underutilized as a perennial crop. Bouquet Purple has many desirable perennial characteristics such as: quick finishing time from plugs, easy flowering that can be scheduled, hardiness in USDA Zones 4-10 and few known cultural problems. Bouquet Purple is a seed-propagated, interspecific F1 hybrid that produces lavender flowers on strong, well-branched stems. Throughout the country, it has been a terrific performer and has been named winner of the 2000 Minnesota Select Perennial award and the 2001 Mississippi Medallion award. - Paul Pilon
Published Volume 13 Number 1 · GPN - Greenhouse Product News
Dianthus 'Eastern Star'
As 2004 has been dubbed "the year of the dianthus," here is one to consider. - Paul Pilon
Published Volume 14 Number 6 · GPN - Greenhouse Product News
Dianthus gratianopolitanus 'Firewitch'
Find out why the Perennial Plant Association named this variety 2006 Plant of the Year. - By Paul Pilon
Published Volume 16 Issue 1 · GPN - Greenhouse Product News
Digitalis purpurea'Camelot'
This digitalis provides high germination rates, uniform growth and more reliable first-year flowering. - By Paul Pilon
Published Volume 14 Number 12 · GPN - Greenhouse Product News
Doronicum orientale 'Little Leo'
This cool-season perennial does not tolerate heat well but is commonly produced for early spring sales because of its abundant semi-double, bright-yellow flowers. - By Paul Pilon
Published Volume 18 Number 9 · GPN - Greenhouse Product News
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