Grape hyacinth

Muscari

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

Store	Bulb. Cut it in half: you see layers like an onion.
Depth	5-8 cm to the base of the bulb
Spacing	5-8 cm apart
When	Plant in autumn. Plant: from your first autumn frost to 6 weeks after. Work out your dates.
Pets	Non-Toxic to Dogs, Non-Toxic to Cats, Non-Toxic to Horses (ASPCA)

About Grape hyacinth

Tiny blue spikes. Multiplies freely by offsets and seed, sometimes more than you want.

Depth and spacing

Typical range: 5-8 cm deep and 5-8 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 6.5 cm deep and 6.5 cm apart (the size of the organ is illustrative); try your own measurements.

When to plant

Plant in autumn. Plant: from your first autumn frost to 6 weeks after. These are rules of thumb for the northern hemisphere. Enter your frost dates for real dates.

Dividing and propagating

Lift and divide clumps after the foliage dies down, any time in late spring to summer; replant promptly.

Lifting and storing

Leave in place; if lifted, replant within weeks.

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

The ASPCA lists Muscari armeniacum 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.