Caladiums are tropical plants that grow quickly enough to be used as annuals in milder climes during the summer or as houseplants all year. These low-growing show-stoppers thrive in warm, damp, gloomy locations where many other plants would perish. They can survive in filtered sunshine, intense indirect light, or partial shade, but prefer full shade in hotter climates. Provide them with well-draining soil, and if water puddles appear 56 hours after a heavy rain, choose a new location or enrich the soil with organic material to promote drainage.
When to Plant
After the risk of frost has passed and daytime temperatures remain over 70 degrees, plant your Caladium tubers outside in the spring. Although these plants will only develop in warm soil, if you live in a colder region and want to get a head start, you can start them inside 46 weeks before the normal last frost date. Your Caladium tubers will sprout and root a few weeks after planting, depending on the soil quality and air temperature.
How to Plant
- Find a site where your Caladiums will receive filtered sunshine, brilliant indirect light, or moderate shade for outdoor landscaping planting. Plant the tubers about 2″ deep and 812″ apart, with the growth points or “eyes” facing up, in holes dug about 2″ deep and 812″ apart.
- Select a container with adequate drainage holes and fill it with good quality, well-drained soil for container gardening. Almost any potting medium that is commercially available will suffice. With the growth points or “eyes” facing up, plant the tubers about 2″ deep.
How to Grow
- Water your Caladiums just enough to keep the soil slightly damp, but never saturated.
- After the season is through, tidy up the garden by removing any yellow foliage.
- If you reside in a climate with cold or wet winters, dig out the tubers before the first frost in the fall. Allow them to air dry for a few days before keeping them with peat moss in a cool spot.
- Allow a few months for your Caladiums to rest before starting the next growing cycle.
Caladium Tips & Tricks
- To increase the level 23″ and enhance drainage, amend the soil with compost, finely crushed bark, or composted manure.
- Caladiums should be planted in regions where they will be protected from the wind, as their big leaves are vulnerable to harm.
- After a few weeks, roots and sprouts should appear, with mature sizes reaching up to 25 inches tall.
- Caladiums can be mixed with other plants in the same pot, but they must all have the same light and water requirements.
- To add some colorful beauty to mixed bouquets, pinch off a few leaves during active development.
Should I soak caladium bulbs before planting?
It’s critical to keep the soil warm and moist. Wait until the soil temperature rises around the first part of June before planting caladium bulbs immediately outside. Soak the bulb for about an hour in warm water before planting it bumpy side up, 2 inches deep in the garden.
What month do you plant caladium bulbs?
Caladiums can be bought as potted plants or as tubers that are dormant. Their size varies according to the variety. Each tuber, for the most part, has a huge bud that is often flanked by smaller ones. Many gardeners find it beneficial to take off the giant bud with a knife after planting caladium bulbs to make it simpler for these smaller buds to sprout. Of course, this is a personal choice that will have no effect on the general growth of your caladiums.
Caladium bulbs require little effort to plant. They can be planted immediately in the garden in the spring or seeded four to six weeks ahead of the usual frost date inside. Planting tubers too early outside will cause them to rot, so soil temperature is crucial.
These plants prefer moist, well-drained soil and prefer to be partially shaded. Caladiums should be planted 4 to 6 inches (10 to 15 cm) deep and 4 to 6 inches (10 to 15 cm) apart when planted.
If you’re growing caladiums indoors, keep them warm and bright until the weather warms up enough to move them outside. The knobs, or eye buds, of caladium tubers should face up and be planted one to two inches (2.5 to 5 cm) deep. While certain kinds may be difficult to recognize, those that are planted upside down will nonetheless develop, albeit at a slower rate.
How long does it take for a caladium bulb to sprout?
Caladium bulbs can take anywhere from two to twelve weeks to germinate, depending on the variety you choose. They thrive in hot temperatures, therefore the warmer the ground and air temperature when you plant them, the faster they will grow.
Do caladium bulbs come back every year?
Caladium plants (Caladium spp.) grow from bulbs and are hardy in USDA zones 9 and 10. The bulbs will return each year in warmer climates. Because cold weather can easily destroy the tubers, you can dig them up for the winter and transplant them in the spring.
Which end of a caladium bulb is up?
Caladium bulbs have a smooth bottom side and a knobby top side (these are the eyes or growth points). Plant right side up. Though they will grow in either direction, planting them with the top side up will result in the quickest sprouting period and the happiest plant.
Do you have to dig up caladium bulbs?
Caladiums should be dug up before it becomes too cold outside, as they do not withstand frost. Once the temperature drops below 60° F, the foliage will begin to die back naturally. But it’s fine if it doesn’t die fully before they have to be lifted.
Why won’t my caladium bulbs grow?
Caladiums, like other plants, can have issues. Caladium plant issues include everything from poor cultural practices to diseases and pests.
Cultural Practices
Learn how to care for your caladium plant to begin preventing caladium problems caused by poor cultural practices.
Caladiums are grown from tubers that resemble bulbs, and the plants can be stunted if the tubers are damaged during storage. Stock tubers carefully in a garage or porch at temperatures between 60 and 90 degrees Fahrenheit (15 to 32 C.). Plant development will be inhibited if the weather is too cold or too hot.
Caladiums enjoy to be in the sun, but not all at once. Your cultivars may get sunburned if they were cultivated in cloudy weather and are suddenly exposed to bright light. Brown spots can be seen on the leaves. If this happens, simply increase the amount of shade the plant receives.
How long do caladium bulbs take to break ground?
Caladium bulbs sprout in two to twelve weeks, according to the brief response. Temperature, soil moisture level, and whether they are potted or planted in soil all play a role in how long they take. This will also lengthen the sprouting time if planted wrongly.
Where do caladiums grow best?
Caladiums thrive in shaded areas of the yard and garden. They thrive in full to partial shade in southern climates. Most caladiums can be grown in the sun in northern climates if they are given enough water and their leaves are shaded during the warmest portion of the day.