Caladiums are colourful, tropical foliage crops that develop as perennials in USDA Hardiness Zones 9 to 11.
In colder areas, the place the bottom freezes, they’re typically grown as annuals.
They are often taken out of the bottom within the fall, the tubers saved through the winter months, and replanted the next spring.
As well as, people in areas which are heat and frost-free, however very wet in winter, typically dig up and retailer caladiums to forestall them from rotting in perpetually moist floor.
Our information to rising caladiums covers the way to domesticate these ornamental crops in your panorama.
On this article, you’ll uncover the way to carry, treatment, and retailer caladium corms for replanting the next spring.
Right here’s what I’ll go over:
When the Time Is Proper
Caladiums develop greatest in soil temperatures of not less than 70°F. Their showy leaves sprout in spring and flourish by the summer time.
In fall, they begin to fade and wither, going dormant over the winter months.
In heat areas the place the soil temperature stays above 60°F year-round, you could possibly depart your crops within the floor.
Nevertheless, as talked about, in case your winters are particularly moist, poor soil drainage might trigger them to rot within the floor earlier than the subsequent spring.
In areas the place the bottom freezes, like my locale within the Northeast, you’ll wish to take your crops out of the bottom in fall, because the foliage begins to fade, when the soil temperature is round 60°F.
You should use a soil thermometer to examine the bottom temperature, or use climate forecasts and plant habits as your guides.
When the daytime temperatures now not climb out of the 70s, and nighttime temperatures drop to the 50s, and crops start to droop and pale, it’s time to dig.
Keep in mind, these are tropical crops. They’re more likely to survive temperatures as little as the 40s, however one freeze, and so they’ve had it.
If you happen to develop caladiums in containers as a substitute of within the floor, you could carry your pots indoors when nighttime temperatures start to dip under 60°F, the place they could thrive as houseplants.
They require a interval of dormancy over the winter months, so maintain off on watering as soon as they cease rising and winter dormancy begins.
Resume watering while you see indicators of spring progress.
Find out how to Raise and Treatment Caladium Corms
Caladiums develop in clusters of leafy petioles, or leafstalks that sprout from tubers or corms.
The roots are shallow, however you want to take care to not injury the tubers while you dig them up.
To Raise Crops:
Use a backyard claw or spade to loosen the soil six to eight inches huge round a cluster, and eight inches deep.
Grasp the leafstalks collectively like a bouquet, and thoroughly carry the ball of earth that comprises the roots and corms from the bottom.
To Treatment Corms:
Use a backyard hose on a delicate setting to scrub away the entire soil that’s clinging to the tubers and roots.
Alternatively, you may lay the lifted plant on newspaper in a cool, dry place till they’re dry sufficient to softly brush off the clinging soil.
Examine the corms and roots and minimize off any lifeless, tender, or rotten spots.
At this level, some individuals spray a sulfur-based fungicide, in accordance with package deal directions, on the tubers to inhibit rotting throughout storage.
Place in a heat, dry location out of direct daylight, the place they’ll dry. This may increasingly take per week or extra.
Winter Storage
After per week or so of curing, the corms needs to be dry sufficient to position in storage.
You’ll know they’re prepared when all components really feel dry and the remaining foliage is withered, brown, and straightforward to tug away from the corm.
Drying occasions will range. Don’t rush this stage, as tubers that aren’t sufficiently dry are more likely to rot throughout storage.
To Retailer Corms:
Take away all of the foliage and trim off the roots so the corms are naked.
Place the tubers not less than one inch aside on a mattress of dry potting medium like vermiculite, sphagnum peat moss, or sand.
At this level, some gardeners sprinkle powdered sulfur-based fungicide, in accordance with package deal directions, over the corms to inhibit spoilage over the winter.
Cowl them with two to 3 inches of the identical potting medium.
Retailer the containers in a cool, dry location out of direct daylight, the place they won’t be disturbed, and temperatures don’t drop under 55 to 60°F.
In case you are storing your corms in a shed or different location the place digging and nibbling rodents could also be an issue, tuck screening over and round your containers.
Preserve the potting medium dry throughout winter storage.
Replanting
When all danger of frost has handed and the soil temperature is not less than 70°F, you may plant your saved corms out within the backyard.
Alternatively, begin them indoors in early to mid-spring for planting out in early summer time.
Place the corms bud aspect up, in a container crammed with well-draining potting medium.
Preserve the soil moist however not waterlogged, and place it in a heat location (70°F) with oblique daylight.
You will discover full planting directions right here.
Plant, Raise, and Repeat
With superb rising situations, together with half shade and organically-rich, well-draining soil with a temperature of 70°F or above, caladiums do very properly.
And now that you understand how to carry, treatment, and retailer them in climates not conducive to wintering over, you may multiply your preliminary funding into years of colourful backyard sights.
Over time, you could discover that your crops have sparse leaves and aren’t as vigorous as they as soon as have been. This isn’t uncommon; it’s simply the character of the plant.
Do you develop caladiums? What are your favourite shade combos? What crops share the backyard with these tropical lovelies? Tell us within the feedback part under. And be happy to share an image!
At that time, probably 5 or extra years down the highway, you could wish to cease lifting and storing, and buy new favorites to like.
And if you wish to add extra foliage crops to your backyard, take a look at these guides subsequent:
© Ask the Specialists, LLC. ALL RIGHTS RESERVED. See our TOS for extra particulars. Initially revealed September 21, 2020. Final up to date October 16, 2026. Uncredited pictures: Shutterstock.
