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 Green Thumb Nursery - 319-393-5946 - Cedar Rapids, Iowa
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perennial

Delft Blue Hyacinth

Hyacinthus 'Delft Blue'

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Delft Blue Hyacinth (Hyacinthus 'Delft Blue') at Peck's Green Thumb Nursery

Delft Blue Hyacinth flowers

Delft Blue Hyacinth flowers

(Photo courtesy of NetPS Plant Finder)

Height:  10 inches

Spacing:  5 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  4

Other Names:  Hybrid Hyacinth

Ornamental Features

Delft Blue Hyacinth has masses of beautiful spikes of fragrant royal blue bell-shaped flowers rising above the foliage in early spring, which are most effective when planted in groupings. Its grassy leaves remain green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Delft Blue Hyacinth is an herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This is a relatively low maintenance plant, and usually looks its best without pruning, although it will tolerate pruning. It has no significant negative characteristics.

Delft Blue Hyacinth is recommended for the following landscape applications;

  • Mass Planting
  • Border Edging
  • General Garden Use
  • Container Planting

Planting & Growing

Delft Blue Hyacinth will grow to be about 8 inches tall at maturity, with a spread of 6 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 5 inches apart. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 5 years. As this plant tends to go dormant in summer, it is best interplanted with late-season bloomers to hide the dying foliage.

This plant does best in full sun to partial shade. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. Consider covering it with a thick layer of mulch in winter to protect it in exposed locations or colder microclimates. This particular variety is an interspecific hybrid. It can be propagated by multiplication of the underground bulbs; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Delft Blue Hyacinth is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the larger thriller plants stand out. 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  Edging  Garden  Container 
Applications
Flowers 
Ornamental Features

This Plant Finder tool 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 the store directly for availability. It does not include our entire inventory of plants, so be sure to visit our store to see varieties that may not be represented on this list.