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A picture of a Hyacinth 'Delft Blue'

Hyacinth 'Delft Blue'

Hyacinthus orientalis 'Delft Blue'

Also known as

Hyacinth

Photo by SecretGardeningClub (All rights reserved)

Full Sun
Easy care
Moderate watering
Frost Hardy

9a

USDA zone

-7°C

Minimum temperature

Expected size

Height
Spread

-50cm

Max

20cm

10cm

Min

5cm

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has a strong fragrance

More images of Hyacinth 'Delft Blue'

A close up of the blue flowers of Hyacinth' Delft Blue'
Some Hyacinthus orientalis 'Delft Blue' with green leaves and blue purple flowers

Hyacinth 'Delft Blue' Overview

Hyacinthus orientalis 'Delft Blue is a spring-flowering deciduous bulbous perennial that produces highly fragrant blue flowers and has earned a Royal Horticultural Society Award of Garden Merit. Also known as Hyacinth 'Delft Blue', these typically grow to around 30cm high and have glossy green leaves that are linear to strap-shaped in appearance with an upright growth habit. Easy to grow, this showy plant prefers a spot in full sun but will tolerate partial shade. Ideal to grow in containers and flower beds and borders, these bulbs can be 'forced' to flower out of season, giving us fragrance and colour throughout the year, but especially over winter. Plant bulbs in autumn 15cm (6") deep and spaced 10cm (4") apart - however, container-grown bulbs can be placed closer together. Keep the soil moist during the growing season. Forced or prepared bulbs are often treated as annuals but can be planted out and revert to their normal flowering time after 1-2 years. Allow the foliage to die back naturally, giving the bulb time to fatten up for the following year. Hyacinths can naturalise when growing in the right spot.

Common problems with Hyacinth 'Delft Blue'

How to harvest Hyacinth 'Delft Blue'

Harvest the fragrant flowers during late winter or spring. Harvest bulbs in summer months.

How to propagate Hyacinth 'Delft Blue'

Bulbs

For outdoor planting - choose smaller bulbs that will produce shorter flower stalks [more weather resistant] For indoor forcing - choose larger bulbs, that will produce a higher number of flower florets.

Division

Divide offsets when dormant in the summer. Replant during autumn. Plant 10 cm deep and space 7 cm apart. Plant in well-drained, moderately fertile soil in a sunny position.

Special features of Hyacinth 'Delft Blue'

Attractive flowers

Pot plant

Indoor plant

Repels harmful insects

Deer and Rabbit Resistant

Other uses of Hyacinth 'Delft Blue'

Fragrance, border, cutting bed, container, indoors