About Summer hyacinth
Tall white bells in summer from a big bulb; borderline hardy.
Depth and spacing
Typical range: 15 cm deep and 20-30 cm apart. A general rule is to plant at two to three times the height of the bulb; check the label for your variety. The drawing is to scale for 15 cm deep and 25 cm apart (the size of the organ is illustrative); try your own measurements.
When to plant
Plant in spring. Plant: 4 weeks before up to your last spring frost. These are rules of thumb for the northern hemisphere. Enter your frost dates for real dates.
Dividing and propagating
Separate offsets in spring.
Lifting and storing
Lift in colder areas, dry and store frost-free.