Delphinium 'Purple Passion' 5.5 in

Photo Credit:Dowdswell's Delphinium Ltd

Description Credit: Walters Gardens

Available April-May 2023

You'll spot this one from quite a distance! 'Purple Passion' sports intense, deep purple blossoms with a purple and white striped bee. The densely packed flower spikes are produced on very strong stems. Large, deeply incised, green leaves make this plant attractive even when it's not in bloom.

Zone 3-7

Height 3-5 ft

Space 18-24 inch

Partial Shade to Full Sun

Moose and Rabbit resistant

Delphiniums thrive in the cooler climates of the north country, though they will grow as far south as zone 7.  The New Millenium hybrids, however, tend to be more tolerant of heat and humidity.  They grow best in rich, well-drained soil with a basic pH.  If your soil is naturally acidic, adding lime will help to provide these conditions.  They are also heavy feeders.  The addition of compost or manure to the soil as well the use of granular fertilizer will result in healthier, stronger plants. 

Delphiniums can be grown in full sun or partial shade, though full sun may help to prevent powdery mildew.  When planting, be sure to set the crown at or above soil level to avoid rot.  Since their stems are hollow, taller varieties of Delphiniums should be staked to prevent damage from wind and rain.  These new hybrids tend to be longer lived than their short-lived cousins but may be propagated from basal cuttings