Molokini Portulaca (Portulaca molokoniensis)

Molokini Portulaca

Portulaca molokoniensis

A rare Hawaiian succulent with thick, corky stems and bright yellow flowers—a desert's grit and romance. Other names: 'Ihi.

Requires full, direct sunlight to maintain its compact rosette shape and encourage blooming.
0.5/week
Moderate
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Plant Needs

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Sunlight Requires full, direct sunlight to maintain its compact rosette shape and encourage blooming.
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Watering Highly drought-tolerant; requires watering only when the soil is completely dry to the bottom of the pot.
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Temperature Thrives in warm, arid conditions; not frost-tolerant and must be protected from freezing temperatures.
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Characteristics

  • Leaves: Fleshy, pale green to bluish-green, obovate to spatulate, arranged in tight rosettes at the tips of the stems;
  • Flowers: Small, cup-shaped, bright yellow, clustered at the terminal ends of the stems, opening in bright sunlight;
  • Stems: Upright, thick and succulent, becoming woody and corky at the base as the plant matures, giving it a bonsai-like appearance.
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Care Guide

Watering

Water thoroughly, allowing the water to drain completely, then wait until the soil is entirely dry before watering again.

Fertilization

Apply a diluted, low-nitrogen succulent fertilizer once.. Feed sparingly during the active growing season; do not fertilize in winter.

Eggshell Powder:Crush clean, dry eggshells into a fine powder and sprinkle sparingly on the soil surface to provide slow-release calcium, which supports strong cellular walls in the thick stems. Avoid over-application to prevent soil alkalinity.
Pruning
  • Remove dried or dead leaves at the base of the rosettes to maintain airflow and prevent fungal issues;
  • Prune broken or damaged stems with sterile shears;
  • Avoid heavy pruning, as the plant's natural architectural shape is its primary appeal.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Toxic (per ASPCA for Portulaca genus); contains soluble calcium oxalates which can cause gastrointestinal distress and, in rare cases, more severe systemic issues.

Humans: Generally considered to have low toxicity for humans, but ingestion of large amounts may cause mild gastrointestinal upset due to soluble calcium oxalates.

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Garden Uses & Culture

Culture: Highly prized by succulent collectors in Western horticulture for its unique, natural bonsai-like structure and extreme rarity in cultivation.

Usage: Cultivated primarily as an ornamental container plant, a specimen for succulent collections, and a subject for succulent bonsai staging.