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How to Grow Colchicum Corms

How to Grow Colchicum

Colchicum corms
Colchicum sprouting
Colchicum flower
You could have naked ladies in your garden in no time! Named because the flowers appear before the foliage Colchicum are super easy plants to grow. They are so eager to put on a show that if you don't plant them before the end of September they will flower anyway, whether they have been planted or not. Buy the largest corms you can afford as the bigger the bulb (or corm in this case) the bigger the flowers. They are extremely versatile and can even be used as a short term houseplant for a splash of autumn colour. Suitable for naturalising (being planted) in grass and under trees, borders and patio pots and containers. If you want to grow as a houseplant grow in a shallow container, (they will even grow without soil), then once the flowers are starting to fade plant them in the garden. 

Popular varieties to try: Autumnale, Waterlily, Lilac Wonder, Album


Care at a glance:

Available as: A bulb (well technically a corm) - buy the largest bulbs you can afford as they grow the biggest flowers
Flowers: September to November
Flower colour: Pink. White. 
Height: 4 inches
Foliage: Deciduous, so loses its leaves in winter and regrows the following spring
Position: Full sun to partial shade. South, north, east or west facing
Soil Type: Moist but well drained deep soil. Can be grown in containers
Planting depth: 3 inches deep, 6 inches apart
Pruning: None required
Feeding: None required in the ground. Feed pots with a general purpose fertiliser
Hardiness: Hardy in the UK so you can leave them outside all year without protection. Disappears underground in winter
Pests and Diseases: Reasonably trouble free. Slugs and snails may have a nibble.
Propagation:  Bulbs will multiply, dig up and replant bulbs when dormant
Toxicity: Highly toxic if eaten, so don't. Bulbs may cause skin irritation, rashes and swelling so wear gloves when handling
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