- 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.
Can you plant caladiums together?
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.
How much space do caladiums need?
SOIL: Caladiums thrive in well-drained soil, both in containers and in landscapes. When planting caladium bulbs in containers, use a basic potting mix, such as one for growing annuals. Caladiums should be grown in containers or raised beds if you plant in heavy clay.
PLANTING DEPTH: Plant your sprouted caladium plants at the same depth they were growing in the container, just like the rest of your annuals. They don’t require any additional planting depth.
Caladiums typically grow to be 8-14″ broad. If you’re going to plant a bunch of them and want them to grow together, spacing them 8-10″ apart. If you want to use them as an accent plant in a garden bed, don’t plant anything too aggressive next to them, or they’ll get buried early in the season before their growth spurt begins.
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 is the best time to plant caladium bulbs?
A: Caladium bulbs should not be planted until after May 1st. By that time, the soil temperature should have reached 70 degrees. Caladium plants can be planted if you want to get your caladiums up and running as soon as feasible. These are already a few inches tall after being raised in a nursery. Remember that caladiums cannot withstand low temperatures, so even if you use these transplants and plant them before May 1st, you risk losing them.
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.
Can caladium bulbs be split?
Caladium tubers, not bulbs, are the most common type of caladium. Caladium tubers can be divided in the spring when propagating the plant, according to Fine Gardening. Dig out and divide the tubers in colder locations where the caladium isn’t hardy, then store them over the winter to replant in the spring. North Carolina State University Cooperative Extension recommends storing them in a dry, warm area at 70 to 75 degrees Fahrenheit.
How do you split caladium bulbs?
Caladium plants should be divided in the spring. Lift the tuber clump out of the garden bed with a garden fork inserted into the dirt at the plant’s base. Using a knife, cut the tubers into 1- to 3-inch chunks. Plants grown from one-inch tubers will be smaller. At least one “eye” or growth point is required in each area. To keep the tubers from decaying in the ground, dust them with fungicide. Use a horticulture fungicide according to the package label’s instructions. Fill the space around the tuber with soil and smooth it up. Caladium plants require continuous hydration, but soggy, poorly drained soil will cause them to rot.
How long do caladium bulbs last?
A bulb usually lasts approximately a year after it is removed from the ground before it starts to die. Bulbs store carbohyrates for the following year’s growth, but this stored energy depletes with time. I suppose it’s worth a shot to see if you can get yours to grow. Within 3-4 weeks of planting, you’ll know whether they’ll grow or not.