How to Plant Caladium Bulbs for Stunning Garden Display
How to Plant Caladium Bulbs?
To plant caladium bulbs, wait until after the last frost date in spring and ensure that the soil temperature is around 70°F.
If the soil temperature is unknown, wait until daytime temperatures consistently reach the 70s for 2-3 weeks.
Choose the right variety based on the hours of sun in the planting location.
Caladiums can be planted outdoors with high humidity or in pots indoors.
The bulbs should be positioned with the flat end down and eyes facing up, and covered with soil.
Water well and keep the soil consistently moist but not soggy.
Apply organic bulb fertilizer at planting and a 3-1-2 liquid fertilizer during the growing season.
When planting in containers, ensure proper drainage and add plastic to create humidity for sprouting.
Transplant the caladiums into the ground after 2-3 weeks of sprouting.
Keep the soil mulched and moist throughout the season, and fertilize every six weeks.
In colder zones, dig up and store the bulbs in a dry location at 55 degrees or above during the winter months.
In the deep south, it is not necessary to dig up caladiums.
Caladium bulbs are easy to plant and suitable for inexperienced gardeners.
Key Points:
- Wait until after the last frost date in spring and ensure soil temperature is around 70°F
- Choose the right variety based on the hours of sun in the planting location
- Position bulbs with flat end down and eyes facing up, then cover with soil
- Water well and keep soil consistently moist but not soggy
- Apply organic bulb fertilizer at planting and a 3-1-2 liquid fertilizer during growing season
- In colder zones, dig up and store bulbs in a dry location at 55 degrees or above during winter months
Did You Know?
1. Did you know that caladium bulbs are native to South America? They were first discovered in the Brazilian rainforests by French botanist and explorer, Charles Plumier, in the late 17th century.
2. Caladiums are not true flowering plants but are instead valued for their vibrant leaves. The pattern and color variations in their foliage can change depending on the amount of sunlight they receive.
3. Caladium bulbs contain calcium oxalate crystals, which are toxic to humans and animals if ingested. These crystals can cause irritation and swelling of the mouth and throat, so it’s important to handle them with care and keep them out of the reach of children and pets.
4. In addition to their aesthetic appeal, caladiums have some fascinating historical uses as well. It is believed that indigenous peoples in South America used caladium leaves to staunch bleeding wounds, partly due to their natural astringent properties.
5. Caladiums are also known by other names such as “angel wings” or “elephant ears” due to the shape and size of their leaves. These names reflect the unique and elegant appearance of caladium plants, making them a popular choice for gardens and indoor settings alike.
Planting Caladium Bulbs Outdoors
Caladium bulbs are a beautiful addition to any garden, adding vibrant colors and lush foliage. To ensure successful planting, it is important to follow the right steps.
In Zones 3-8, caladium bulbs are planted as tropical annuals, meaning they need to be planted after the last frost date in spring. However, the soil temperature also plays a crucial role. The soil temperature needs to be around 70°F for planting.
If the soil temperature is not known, it is best to wait until daytime temperatures consistently reach the 70s for 2-3 weeks. This ensures that the soil is warm enough to support the growth of caladium bulbs.
‒ Choose a well-drained location with partial shade or filtered sunlight.
‒ Prepare the planting area by loosening the soil and removing any weeds or debris.
‒ Dig holes that are 2-3 inches deep and place the caladium bulbs with the knob (or eye) facing up.
‒ Space the bulbs about 8-12 inches apart to allow room for growth.
‒ Cover the bulbs with soil and gently firm it down.
‒ Water the area thoroughly after planting and keep the soil evenly moist throughout the growing season.
‒ Apply a slow-release fertilizer according to the package instructions.
Remember, caladium bulbs are not frost-tolerant, so they need to be lifted and stored before the first frost in colder climates.
Tip: Caladium bulbs can also be grown in containers, which allows for easy rearranging and overwintering indoors.
- Choose well-drained location
- Prepare planting area
- Dig holes 2-3 inches deep
- Place bulbs with knob facing up
- Space bulbs 8-12 inches apart
- Cover with soil and firm it down
- Water thoroughly and keep soil evenly moist
- Apply slow-release fertilizer
Now you have all the guidelines to successfully plant and grow caladium bulbs in your garden. Enjoy the vibrant colors and lush foliage they bring!
Choosing The Right Variety Based On Sunlight
Caladiums are a versatile choice for any garden, with a variety of colors and combinations available. However, it is crucial to select the right variety based on the amount of sunlight the planting location receives.
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Full sun (6-8 hours of direct sunlight) is suitable for some caladium varieties.
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Part sun (4-6 hours of direct sunlight) is also an option.
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For those who prefer a more shaded area, part shade (4-6 hours of morning sun) or shade (2-4 hours of morning sun) is a better choice.
By determining the hours of sun in the planting location, gardeners can choose the appropriate caladium variety that will thrive and flourish in their specific garden.
“Choose the right caladium variety based on the amount of sunlight the planting location receives.”
Planting Caladium Bulbs In Pots Indoors
While caladium bulbs are best planted outdoors, they can also be successfully planted in pots indoors with a high humidity environment. This is especially useful for gardeners who live in areas with colder climates or for those who want to enjoy caladiums as houseplants.
When planting caladium bulbs in pots, it is important to ensure proper drainage. A screen should be placed in the bottom of the container to allow for water to flow out. Use a well-draining potting mix and position the bulbs inside the container, planting them 1-2 inches deep below the soil line. Water thoroughly until water comes out of the drainage holes.
To create humidity and encourage sprouting, add plastic to the container, such as a clear plastic bag, shower cap, or cellophane. Once shoots appear, usually in approximately 2-3 weeks, the clear plastic can be removed.
Caring For Caladium Bulbs During Dormancy
Caladiums go dormant in the fall and winter, with their leaves fading and drying up. During this period, it is important to provide the proper care to ensure healthy bulbs for the next growing season. The grower recommends purchasing new bulbs each year, as old bulbs lose vigor and do not perform as well. However, some people choose to save the bulbs. In zones below 9, where the first frost kills the caladiums, they are considered annuals and are discarded after the frost. In zones 8 and above, where frost is not a concern, it is not necessary to dig up the caladiums during the winter months.
Proper Spacing And Soil Preparation For Caladium Bulbs
To ensure the proper growth and health of caladium bulbs, it is essential to follow spacing guidelines and prepare the soil correctly. The spacing for #1 size bulbs should be 1 foot apart, while jumbo bulbs require a wider spacing of 18-24 inches. When preparing the soil, it is recommended to dig a hole that is 2-3 times deeper and wider than the bulb’s size. If the soil has a clay-like consistency, the hole should be dug 2 times deeper. To create an optimal environment for the caladium bulbs, mix the native soil with compost and add a balanced mix designed for bulbs. This will enrich the soil with the necessary nutrients and support the growth of healthy caladiums.
- Plant #1 size bulbs 1 foot apart
- Jumbo bulbs require a spacing of 18-24 inches
- Dig a hole 2-3 times deeper and wider than the bulb’s size
- If the soil is clay-like, dig the hole 2 times deeper
- Mix native soil with compost
- Use a balanced mix designed for bulbs
“Proper spacing and soil preparation are crucial for the healthy growth of caladium bulbs.”
Transplanting Caladium Bulbs From Containers To The Ground
Once the caladiums have been started in containers indoors, it is important to transplant them into the ground at the appropriate time. This provides a 2-3 week head start in the growing season.
The time to transplant caladium bulbs from containers to the ground is around the same time it is ready to plant for the season. By carefully removing the caladium bulbs from the containers and positioning them in the ground, the plants can continue to flourish and grow. This ensures that the caladiums have a strong foundation and ample space to develop their vibrant leaves.
Providing proper care during this stage, such as applying a 3-1-2 fertilizer monthly, will help encourage leaf growth and overall plant health.
Frequently Asked Questions
Which side goes up on a caladium bulb?
To ensure optimal growth and efficiency, it is best to plant caladium bulbs with the knobby top side facing upwards. While these bulbs are resilient and capable of sprouting regardless of orientation, positioning them correctly expedites the sprouting process and promotes the overall well-being of the plant. By planting them right side up, you can ensure a quicker and more successful growth cycle, allowing your caladium to thrive.
What are the instructions for planting caladium bulbs?
To plant caladium bulbs, begin by placing the bulb in the soil with the top facing upward, burying it about 1 1/2 to 2 inches below the surface. If the soil consists of sandy texture, adding peat moss will enhance moisture retention. It is important to mulch around the planting area and ensure consistent moistness during the growing season. This straightforward process guarantees successful growth and beautiful caladiums all season long.
How long does it take caladium to grow from bulbs?
Caladium bulbs typically take around 3 weeks to start showing foliage when planted in the warmer part of the season with a soil temperature above 65°F. However, if you choose to start them in the spring, it may take slightly longer, about 6-8 weeks, for the foliage to emerge. The exact timing can also vary depending on the specific variety of caladium you are growing.
How do you plant caladium bulbs indoors?
To plant caladium bulbs indoors, start by selecting a container that is at least 15 cm deep and spacious enough for the bulb and its roots to grow. Prioritize a mix of multi-purpose compost and vermiculite for the soil, as caladiums prefer fertile and well-drained conditions. Gently place the bulb in the container, ensuring that it is fully submerged in the soil. Water the caladium regularly, making sure to keep the soil evenly moist but not soggy. With the right container, soil mixture, and watering routine, you can successfully cultivate vibrant caladiums indoors and enjoy their beautiful foliage year-round.