Plant Rhizome

Summer hyacinth

Galtonia candicans

A bulb. A short stem (the basal plate) wrapped in fleshy scales that hold the food store, with the next flower folded inside.

Whole
Cut open
StoreBulb. Cut it in half: you see layers like an onion.
Depth15 cm to the base of the bulb
Spacing20-30 cm apart
WhenPlant in spring. Plant: 4 weeks before up to your last spring frost. Work out your dates.
PetsNon-Toxic to Dogs, Non-Toxic to Cats, Non-Toxic to Horses (ASPCA)

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.

0 cm5 cm10 cm15 cm20 cm25 cm25 cm apart15 cm

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.

Non-Toxic to Dogs, Non-Toxic to Cats, Non-Toxic to Horses

The ASPCA lists Galtonia spp. as: non-toxic to dogs, non-toxic to cats, non-toxic to horses. Toxic principle: Non-toxic. If your pet has chewed any part, call your vet or an animal poison helpline. ASPCA entry.

More bulbs