Botanical name
Hyacinthus orientalis ‘Jan Bos’
Other names
Hyacinthus ‘Delft Blue’
Genus
Hyacinthus
Variety or Cultivar
Hyacinth ‘Jan Bos’ is a bulbous perennial with upright, strap-shaped, dark green leaves and a sturdy stem bearing a densely-packed spike of fragrant, bell-shaped, violet-blue flowers in spring.
Foliage
Deciduous
Fragrance
Flowers are fragrant.
Habit
Upright
Toxicity
May cause skin irritation and if ingested may cause severe discomfort.
Awards
RHS AGM (Award of Garden Merit)
COLOUR
Flower
Blue in Spring
Foliage
Dark-green in Spring
HOW TO CARE
Watch out for
Pests
Generally pest-free.
Diseases
Generally disease-free.
General care
Pruning
Deadhead by pinching spent flower stem at ground level. Only remove leaves after they have completely died down.
Propagation methods
Offsets
WHERE TO GROW
Hyacinthus orientalis ‘Jan Bos’ will reach a height of 0.3m and a spread of 0.1m after 2-5 years.
Suggested uses
City, Cottage/Informal, Beds and borders, Low Maintenance, Mediterranean, Containers
Cultivation
Plant bulbs 10cm deep in autumn in fertile, moist, free draining soil in sun or partial shade, in a sheltered position. If growing in containers, ensure they do not become waterlogged.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
North, South, East, West
Exposure
Sheltered