Iron cross - Oxalis tetraphylla (Care, Characteristics, Symbolism, Images)

Iron cross

Also known as: Lucky leaf, Four-leaf clover, Good-luck plant

This perennial forms full mounds of heart-shaped leaves that grow in the shape of a cross. It blooms bright pink flowers through summer and fall, and is a good choice for containers and rock gardens. Iron cross leaves can technically be considered edible, but their oxalic acid content can make them somewhat hazardous if eaten in quantity.

Scientific classification

Species

Iron cross (Oxalis tetraphylla)

Woodsorrels, quandongs, and allies

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Toxic to Pets

Toxicity

Perennial

Lifespan

Herb

Plant Type

Mid spring, Late spring, Summer, Early fall, Mid fall

Bloom Time

Mid winter, Late winter

Harvest Time

15 cm to 30 cm

Plant Height

10 cm to 15 cm

Spread

Green, Red

Leaf Color

2.5 cm to 5 cm

Flower Size

Green

Fruit Color

Red, Purple

Flower Color

Deciduous

Leaf type

15 - 35 ℃

Ideal Temperature

Images of Iron cross

Distribution of Iron cross

Distribution Map

Iron cross is native to Central America, thriving in a range of habitats across this major region. It has been introduced and has naturalized in parts of Asia, Europe, and Africa. Additionally, iron cross is cultivated, indicating its adaptation beyond its native range due to horticultural interests. This reflects the plant's resilience and ability to establish itself across various climates and territories.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Cultivated land

Hemisphere Trend Curve

Northern

Sorthern

Flowering

Fruiting

Culture

Garden Use

Iron cross is a low-growing, clover-like plant that thrives in shady garden borders, woodlands, and rock gardens. Many people also grow it in pots and containers for table decoration, especially for New Year’s Eve parties. In addition, this plant prospers and adds a touch of lush green to window sill gardens and balcony planter boxes.

Symbolism

Joy and good-heartedness

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Cultivars

There are several recognized cultivars of Iron cross, including the following common varieties :

Iron cross 'Iron Cross'

Toxicity

Iron cross is toxic to cats and dogs. Ingesting the leaves of iron cross by mistake can cause severe physical symptoms, necessitating immediate veterinary care. For cats, this includes discomfort and other health issues; for dogs, symptoms may include vomiting, diarrhea, and lethargy. Owners must prevent access to iron cross and seek prompt treatment if ingestion occurs.

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Care Guide for Iron cross

Every week

Water

Full sun

Sunlight

15 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Originating from a moderately moist habitat, iron cross requires consistent hydration but not waterlogging. It thrives with weekly watering and grows vigorously in its season, needing careful irrigation. Iron cross flourishes indoors where water and humidity can be more effectively managed.

Fertilize: Fertilize iron cross with a balanced, water-soluble fertilizer (10-10-10) every 4-6 weeks during spring and summer at half strength to avoid root burn. Avoid fertilizing in fall and winter. Monitor for over-fertilization signs, such as salt build-up or leaf burn.

Pruning: Iron cross thrives with early spring pruning to remove spent flowers and damaged leaves, promoting new growth and compactness. Deadheading enhances blooming cycles, while proper techniques ensure healthy, fuller plants and reduce disease risk. Use clean, sharp tools for effective cuts.

Propagation: Iron cross propagates well by sowing in a well-draining soil mix. Keep the soil moist but not waterlogged, scatter seeds thinly, and cover lightly. Maintain warmth for germination, then transplant seedlings at a suitable size, ensuring regular watering and protection from extremes.

Repotting: Iron cross should be repotted every 2-3 years in spring to support moderate growth. Use a pot slightly larger than the previous one with good drainage. After repotting, keep the soil moist and provide bright, indirect light while being gentle to avoid damaging the bulbs and roots.

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Images of Iron cross

Distribution of Iron cross

Culture

Cultivars

Toxicity

Care Guide for Iron cross

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