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. Plant your caladium bulbs only when nightly temperatures are consistently above 65 degrees Fahrenheit, according to Caladium World.
How long do caladiums take to come up?
Caladiums are tropical plants that must be started in warm indoor conditions in the spring – they require fairly consistent temperatures of around 20C or more to come out of dormancy and can be slow to get going; it’s reasonable to expect the first leaves to emerge 6-8 weeks after planting, so be patient and resist the temptation to overwater them while they’re dormant. When the leaves starts to appear, the surrounding soil or compost will begin to dry up, indicating that it’s time to increase the watering. When your Caladium bulbs have developed a few leaves and the temperature outside is around 20°C, you can move them outside into a shaded, sheltered area of the garden.
- Plant your Caladium bulbs in the spring and keep them warm indoors until they sprout.
- Caladium bulbs need temperatures of roughly 20°C or higher to come out of dormancy, and it can take up to 1-2 months for them to sprout.
- After planting, water in from above and repeat when the soil appears dry on the surface.
- Once the leaves have sprouted and the weather are favorable, tropical bulbs can be transplanted outside starting in May.
Caladium aftercare and storing the bulbs
Keep a watch on the weather prediction starting in early September, as Caladiums should be moved under cover before any indication of frost to prevent harm to the tuber. Because they are perennial, you can dig out the tubers and preserve them for planting the following spring. Simply clip back any foliage before gently lifting the tubers and let them to dry for a week or so. After shaking off any loose soil, keep them in dry compost trays or wrapped in newspaper in a dry, dark, and frost-free location. A garden shed or garage would be excellent for keeping them warm in the winter. As the cold season approaches, you can bring those growing in pots into your home to enjoy indoors.
Growing Caladiums as houseplants
They make brilliantly exotic houseplants because of their excellent tolerance to reduced light levels. They’ll enjoy the continuous warmth of your home and can be encouraged to stay in leaf for far longer than those growing outside. A windowsill would be great, as long as it faces north, east, or west and does not become a sun trap at any time of day. A shelf, kitchen top, or small table near a window would also do as a suitable location for your Caladium plant.
How late can I plant caladium bulbs?
- After all threat of frost has gone and daytime temperatures remain over 70 degrees, plant caladium bulbs outside. Caladiums are tropical plants that cannot withstand frost and emerge only when the soil temperature is warm.
- Turn the soil under to a depth of 8 inches to prepare the bed. Remove any clumps of grass or stones using a rake.
- Most plants thrive in soils that have been treated with organic materials. Compost is a beautiful form of organic matter that can be added to your planting area at any time and has a nice mix of nutrients and a perfect pH level. If compost isn’t available, top dress the soil with 1-2 inches of organic mulch after planting, which will start to decompose into compost. A soil test after the growth season will reveal what soil amendments are required for the next season.
- Bulbs should be spaced 8-12 inches apart. Because these are the growth points, the knobby side should be facing up.
- Before all risk of frost has passed, caladium bulbs can be started inside 6-8 weeks. Because they need warm soil to emerge, consider using a heat mat.
How to Grow
- During the caladium growing season, keep weeds at bay. Weeds compete with plants for water, space, and nutrients, so keep them under control by cultivating them regularly or using a mulch to keep their seeds from developing.
- Mulches also aid in the retention of soil moisture and the maintenance of consistent soil temperatures. For annuals, an organic mulch of crushed leaves gives the bed a natural aspect while also improving the soil as it decomposes. Mulches should never be placed on a plant’s stems to avoid decay.
- During the growing season, keep elephant ear plants well-watered, especially during dry spells. During the growing season, plants require roughly 1 inch of rain every week. To see if you need to add water, use a rain gauge. Watering with a drip or trickle system that provides water at a low pressure at the soil level is ideal. To avoid disease concerns, water early in the day using overhead sprinklers so the foliage has time to dry before nighttime. Maintain a moist but not saturated soil.
- A mild fertilizer can be administered after new growth appears. To avoid burn harm, keep granular fertilizers away from the plant crown and foliage. Slow-release fertilizers should be applied at modest rates, as greater rates may induce root rot. A granular fertilizer applied every 2-3 weeks is beneficial to caladiums.
- Pests and illnesses should be kept an eye on caladiums. For pest management recommendations in your area, contact your local Cooperative Extension Service.
- To retain the plant’s strength, many gardeners cut any flower stalks that grow.
- Caladiums are only hardy to zone 10 in the United States. Dig up the bulbs with the soil and tops adhering to them in other spots in the fall before frost or when the foliage begins to die back. Allow bulbs to dry indoors, away from direct sunlight and with plenty of air movement. When the leaves are readily pulled away from the bulb, shake off the soil but do not wash them. Dry peat moss, perlite, or vermiculite can be used to store bulbs. Avoid storing the bulbs below 60 degrees Fahrenheit.
Are caladium bulbs easy to grow?
With correct caladium care, growing caladiums is simple. The multicolored foliage of these tropical-like plants, which can be green, white, red, or pink, is popularly planted. Caladiums can be planted in pots or in large clumps in beds and borders. Caladiums come in a variety of leaf shapes and sizes, depending on whether they are fancy-leaved or strap-leaved. All of these elements have the potential to make a strong statement in the landscape.
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.
How long does it take for caladium bulbs to sprout after planting?
As houseplants, they thrive both outside and inside. 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.
How long does it take for a bulb to grow?
In any event, the bulbs must first grow roots and establish themselves before sending up top growth, so I believe you will have to wait a lot longer. Glads bloom in 70 to 90 days, and they’re frequently planted in succession over a ten-week period to ensure a steady stream of blooms in the garden.
What is the lifespan of a caladium?
They are, however, notorious for being slow-growing plants. What is the life expectancy of caladium? The plants are perennials, meaning they can be used year after year. They are visible for about six months of the year, from sprouting to hibernation.
Is caladium indoor or outdoor plant?
Caladiums are tropical plants that come in a wide range of colors and patterns. They are native to the Amazon River’s banks in South America. Caladiums look great in pots, hanging baskets, and landscape mass plantings. Red, pink, and white are the primary hues, and each variety of Caladium has its own distinct and interesting color combination of two or more of these colors.
Where to plant caladiums
Caladiums grow well outside in the summer and offer a luxuriant, exotic accent to your yard or garden. The majority of Caladiums prefer to grow in the shadow or partial shade, however certain kinds are more sun resistant (see the caladium catalog page) and can be planted in places with little shade. They’re a terrific way to brighten up shady spots. They’re frequently utilized as border plants, along the sides of houses, or in flowerbeds. They make beautiful patio container plants and can also be utilized in window boxes.
When to Plant Caladium Bulbs
Caladiums are tropical tubers that need to be kept warm to thrive. It is crucial to wait until your soil temperature reaches or exceeds 70 degrees Fahrenheit before planting your caladiums. Germination will be greatly delayed if the weather is cool. On the map on the left, you can see the recommended planting date for your area.
Can you grow caladiums in pots?
Caladiums are easy to raise from tubers, which can be obtained in the Garden Center in the spring with summer-blooming tropical bulbs. Place the tubers in a potting mix container, water regularly, and fertilize every two weeks. These can be grown in pots or in a garden bed.

