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Plant Information

Heart to Heart® Midnight Oil

Caladium

General Information GROWING TIPS

You’ve never seen a caladium quite like this! The first of its kind, this near-black, strap style Heart to Heart® caladium blends deep green and red tones on arrow-shaped leaves with undulating margins. Though it grows in part shade, you’ll find the coloration is darkest when exposed to direct sunlight, appearing dramatic charcoal black from a distance. Expect the spring and summer foliage to be slightly darker than in autumn when the deep red and green tones become more evident. Midnight Oil caladium is a vigorous selection with a full shape that looks beautiful in upright containers, hanging baskets and landscapes.

Heart to Heart® Midnight Oil
Blossom Color No Blossoms
Bloom Season No Blossoms
Exposure Sun or Shade
Height 12-14 in
Width 10-14 in
Spacing 10-14 in
Container Sizes Quart
Hardiness Zones 10, 11
Wildlife Attracted No Wildlife Attracted
Wildlife Deterred No Wildlife Deterred
Features You’ve never seen a caladium quite like this! The first of its kind, this near-black, strap style Heart to Heart® caladium blends deep green and red tones on arrow-shaped leaves with undulating margins. Though it grows in part shade, you’ll find the coloration is darkest when exposed to direct sunlight, appearing dramatic charcoal black from a distance. Expect the spring and summer foliage to be slightly darker than in autumn when the deep red and green tones become more evident. Midnight Oil caladium is a vigorous selection with a full shape that looks beautiful in upright containers, hanging baskets and landscapes.
Available Seasons
Adaptable as a Houseplant No
Bog Plant No
Is Disease Resistant No
Drought Tolerant No
Edible No
Erosion Control No
Fragrant Flower No
Fragrant Foilage No
Heat Tolerant Yes
Native to North America No
Salt Tolerant No
Succulent No
Water Plant No
Uses

Great in landscapes and containers and will grow well in sun and shade locations. This black caladium plant is a medium landscape caladium that works beautifully as a filler in combination recipes and is particularly eye-catching in caladium for patio containers and patio planters. Caladium foliage also makes a wonderful component in cut flower arrangements, especially the dramatic foliage of this dark leaf caladium.

Maintenance Notes

Caladiums can be an irritant if ingested. The ASPCA has more information on which plants may be harmful.

 

Outdoors: Since Caladiums prefer heat and humidity and do not tolerate cold, soggy soils, for most gardeners who live in the north will have best results growing this black caladium plant in containers, where soil warms up faster and drainage is improved. Remember for best growth always keep the temperatures above 65 F. A ¼ - ½ strength fertilizing every week or every other week is fine throughout the season, too strong a fertilizer can burn leaves, and since the leaves last all season you want to keep them looking fresh. Caladiums like to be moist at all times so avoid allowing them to dry out to keep this bold dark leaf caladium looking its best throughout the season.

 

Where the Caladiums will do best depends a lot on your location within the US, since sunlight intensity varies depending on where you live. Here’s a quick reference to help you guide to help you succeed.

Region

When to Plant

Sun or Shade

Containers or in the garden

NW & NE United States & Canada

Early summer

Full sun - light shade.

Caladiums do best in containers in this part of the country and usually need to be in a protected warm location for best results. Like a sunroom or warm patio setting. If growing outdoors select the warmest protected locations in the garden.

SW United States

Spring

shade to light shade only

Containers may be easiest but a shady, cool garden spot can also be lovely. Watch your watering to keep the plants from drying out. 

Midwest

Late Spring

Light shade

Containers are likely best, but a late spring planting into a protected shade flower bed will also be fine.

SE United States

Spring

Shade to sun

Both containers and garden plantings work fine, in the deep south Caladiums may even come back the following year if kept dry over the winter.

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