Plant Database

perennial

Giant Cowslip

Primula florindae

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Giant Cowslip (Primula florindae) at GardenWorks

Giant Cowslip flowers

Giant Cowslip flowers

(Photo courtesy of NetPS Plant Finder)

Plant Height:  12 inches

Flower Height:  3 feet

Spacing:  12 inches

Sunlight:  partial shade  full shade 

Hardiness Zone:  3a

Other Names:  Nutmeg Primula

Description:

This specimen is the largest of the primroses and the latest to flower with a pleasing nutmeg scent; perfectly suited to grow in boggy conditions and other shaded areas when kept watered; great addition to a pond edge

Ornamental Features

Giant Cowslip features delicate fragrant nodding yellow trumpet-shaped flowers at the ends of the stems in early summer. Its serrated oval leaves remain green in colour throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Giant Cowslip is an herbaceous perennial with tall flower stalks held atop a low mound of foliage. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This is a relatively low maintenance plant, and should be cut back in late fall in preparation for winter. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Insects

Giant Cowslip is recommended for the following landscape applications;

  • Mass Planting
  • Rock/Alpine Gardens
  • Border Edging
  • General Garden Use
  • Container Planting
  • Bog Gardens

Planting & Growing

Giant Cowslip will grow to be about 12 inches tall at maturity extending to 3 feet tall with the flowers, with a spread of 16 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 12 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 5 years.

This plant does best in partial shade to shade. It prefers to grow in moist to wet soil, and will even tolerate some standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in both summer and winter to conserve soil moisture and protect it in exposed locations or colder microclimates. This species is not originally from North America.

Giant Cowslip is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Rock  Edging  Garden  Container  Bog 
Applications
Flowers  Texture 
Ornamental Features


Disclaimer - This Plant Database is an online catalog representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact your favourite GardenWorks location directly for current availability. It does not include our entire inventory of plants, so be sure to visit GardenWorks to see varieties that may not be represented on this list.