If your caladiums have started to fade as the weather cools, don’t panic — that’s completely normal. Knowing how to store caladium tubers for winter is the difference between losing your collection and welcoming back even bigger, more colorful leaves next spring. This guide walks you through exactly when to dig, how to cure, and where to keep your tubers until it’s time to plant again.

Why Caladiums Need a Winter Rest

Caladiums are tropical tuberous plants, which means they naturally go dormant once temperatures drop. Instead of dying, the tuber is simply pausing to conserve energy. As a result, the leaves yellow, soften, and eventually collapse — a process we cover in more detail in what happens when caladium leaves die back.

If you live somewhere with cold winters, this rest period is unavoidable. However, the good news is that a healthy tuber can survive several months of dormancy as long as it’s stored correctly.

When to Dig Up Caladium Tubers for Winter Storage

Timing matters more than most growers expect. Dig up your tubers before the first hard frost, since frost damage can rot the tuber before it even enters storage. Watch for these signs that your caladium is ready to come out of the ground or pot:

• Leaves are turning yellow or brown on their own, not from disease
• Growth has visibly slowed, even with normal watering
• Nighttime temperatures are consistently dropping below 60°F (16°C)

According to Mississippi State University Extension, gardeners should dig up their tubers just before the first frost and let the foliage wither naturally rather than pulling it off early.

How to Cure Caladium Tubers Before Storage

Curing is the step most beginners skip — and it’s the one that prevents rot. Follow these steps:

1. Gently lift the tuber from soil, shaking off excess dirt without scrubbing.
2. Place tubers in a warm, well-ventilated spot out of direct sun for one to two weeks.
3. Wait until the foliage turns brittle and separates easily from the tuber.
4. Trim away any remaining leaf stems close to the tuber.
5. Inspect each tuber and discard any that feel soft, mushy, or show mold.

Skipping this drying phase is one of the most common reasons stored tubers rot before spring.

Best Materials for Storing Caladium Tubers

Once cured, tubers need a breathable material that absorbs excess moisture without drying them out completely. Good options include:

• Dry peat moss
• Vermiculite
• Coco coir
• Paper bags or cardboard boxes (never sealed plastic)

Layer the tubers so they aren’t touching each other, then label each container by variety — this matters even more if you’re storing collector or rare hybrid caladiums, which we discuss further in understanding caladium varieties and hybrids.

Ideal Temperature and Location

Caladium tubers store best at 55–65°F (13–18°C), in a dark, dry location such as a closet, basement, or garage that doesn’t freeze. Avoid two extremes in particular:

• Too cold (below 50°F/10°C): tissue damage and rot become likely
• Too warm or humid: tubers may sprout early or develop mold

If you’re unsure how cold your winters typically get, the official USDA Plant Hardiness Zone Map is a reliable way to check your zone before deciding whether tubers need to come indoors at all.

Storing Potted Caladiums vs. Digging Up Tubers

You don’t necessarily have to remove your caladiums from their pots. Choose whichever method suits your setup.

Method 1: Leave Caladiums in Their Pots

If your caladiums are already growing in containers, simply let the foliage die back naturally, then cut the stems to soil level. Move the pot to a dark spot within the temperature range above, and stop watering completely until spring. For more on growing caladiums in containers year-round, see can caladiums grow in pots.

Method 2: Dig Up and Store the Tubers Separately

This method is more hands-on but gives you better control, especially useful for collectors managing multiple rare varieties in a small space. Follow the curing steps above, then pack the tubers into your chosen storage material and check on them every few weeks.

Common Mistakes That Ruin Stored Caladium Tubers

• Storing tubers while still damp from curing
• Using sealed plastic containers or bags
• Keeping tubers somewhere that dips below 50°F (10°C)
• Watering “just in case” during dormancy
• Waiting too long past the first frost to dig them up

Most storage failures come from moisture, not cold alone — so when in doubt, err on the side of drier rather than wetter.

Waking Caladium Tubers Up in Spring

Once the danger of frost has passed and soil temperatures warm consistently, it’s time to bring your tubers back to life. Check our full walkthrough on how to plant caladium bulbs for healthy, strong growth for planting depth and spacing. New growth typically appears within a few weeks; for what to expect during this stage, see understanding the early growth stage of caladium plants.

Frequently Asked Questions

Can I store caladium tubers in the refrigerator?

No. Refrigerators are typically too cold and too humid, which encourages rot rather than safe dormancy.

How long can caladium tubers stay in storage?

Most tubers store well for four to six months. Storing them much longer than that risks excessive drying and reduced vigor once replanted.

Do I need to water tubers during winter storage?

Generally, no. Dormant tubers should stay dry; occasional light misting is only needed if the storage material feels bone-dry and the tubers look shriveled.

What if some tubers don’t survive storage?

It happens even to experienced growers. Discard any soft or moldy tubers immediately so they don’t affect the healthy ones nearby.

Give Your Caladiums the Best Start Next Season

Storing caladium tubers correctly is what turns a one-season plant into a collection that comes back bigger and more colorful every year. If you’d rather start fresh, Greenos Plantcific ships premium Indonesian caladium plants to collectors worldwide, carefully packed and shipped to arrive safely. Browse our full collection at Greenos Plantcific to plan your next planting season.