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Hedonisia Hawaii Botanical Plant Inventory

Blood Leaf

Iresine (Bloodleaf)

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1) Plant History & General Information:

Iresine is a genus of flowering plants in the amaranth family, Amaranthaceae. Called also by the common name BloodLeaf

  • Scientific Name: Iresine Herbstii
  • Region of Origin: American Tropics
  • General Appearance: Red leaves with bright pink veins

2) Plant Uses:

  • Mostly grown as an ornamental plant
  • Used locally as a food coloring

Origin: Brazil

Height: Up to 2 ft (60 cm)


3) Growing Instructions

  • Growing: Can only be grown outdoors in growing zones 10 or 11. In climates that get any frost, plants must be treated as an annual or brought inside.
  • Sunlight Requirements: Partial Shade, Full Sunlight. The colors are more brilliant when grown in full sun.
  • Soil Requirements: Organically rich soil that drains freely.
  • Tip: Pinch out the growth tips while the plants are young to promote a dense growth habit and attractive shape.
  • Propagation: They root easily.Take cuttings about 10 centimeters long, with at least three sets of leaves. Remove the bottom set of leaves and cut the larger leaves in half to reduce transpiration. Insert the cuttings directly into the soil – several can be placed in the same hole.
  • Light: Bright light is necessary to prevent the bright leaf color from fading. Shade the plant from hot, direct summer sun. It thrives under indoor grow lights.
  • Water: Water thoroughly, aiming to keep the potting mix lightly moist at all times. Empty drainage tray to prevent soggy soil, which can lead to root rot.
  • Humidity: Moderate to high (50% relative humidity or higher). Use a humidity tray or room humidifier to raise the moisture in the air around it.

    Temperature: Average to warm room temperatures 65-80°F/18-27°C. Iresine will tolerate a minimum of 55°F/13°C in winter.

    Fertilizer: Feed every 2 weeks spring through fall with a balanced liquid fertilizer diluted by half.