Canna

A rhizome. A stem that grows sideways at or just below the soil, with nodes that make shoots above and roots below.

Whole

Cut open

Store	Rhizome. Grows horizontally and is segmented, with a shoot at the growing tip.
Depth	5-10 cm to the base of the rhizome
Spacing	45-60 cm apart
When	Tender: start indoors, plant out after frost. Start indoors: 6 weeks to 3 weeks before your last spring frost. Plant out: from your last spring frost to 2 weeks after. Work out your dates.
Pets	Non-Toxic to Dogs, Non-Toxic to Cats, Non-Toxic to Horses (ASPCA)

About Canna

A fat rhizome that gives big leaves and bright flowers in a hot summer. Tender in cold areas.

Depth and spacing

Typical range: 5-10 cm deep and 45-60 cm apart. A general rule is to plant at two to three times the height of the rhizome; check the label for your variety. The drawing is to scale for 7.5 cm deep and 52.5 cm apart (the size of the organ is illustrative); try your own measurements.

When to plant

Tender: start indoors, plant out after frost. Start indoors: 6 weeks to 3 weeks before your last spring frost. Plant out: from your last spring frost to 2 weeks after. These are rules of thumb for the northern hemisphere. Enter your frost dates for real dates.

Dividing and propagating

Divide the rhizomes in spring before starting them into growth; each piece needs a bud.

Lifting and storing

Cut stems and lift before hard frost; store in barely damp compost or sand in a cool, frost-free place. Check regularly for rot.

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

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