Metrosideros Polymorpha

Description

Metrosideros Polymorpha, also known as Ohia Lehua, is an iconic Hawaiian tree that belongs to the myrtle family, Myrtaceae. It is a native tree to Hawaii and is found on all the main islands. The tree is known for its beautiful, bright red flowers that bloom throughout the year, making it a symbol of love and passion in Hawaiian culture. It is also a vital part of the Hawaiian ecosystem, providing food and shelter to many native birds and insects.

Taxonomic Information

Appearance

Metrosideros Polymorpha is a small to medium-sized tree, reaching heights of up to 50 feet. The tree has a straight trunk with a brownish-gray bark that peels off in flakes. The leaves are small, leathery, and dark green, with a glossy surface. The flowers are the most distinct feature of the tree, with bright red petals and long stamens that protrude from the center. The tree produces woody capsules that contain small, black seeds.

Care Guide

Metrosideros Polymorpha is a hardy tree that requires minimal care. Here are some tips to keep your Ohia Lehua healthy:

Water: The tree can tolerate drought conditions, but it prefers regular watering. Water the tree deeply once a week, especially during dry periods.

Fertilization: The tree does not require much fertilization. You can apply a slow-release fertilizer once a year in the spring.

Soil: The tree prefers well-draining soil, but it can grow in a range of soil types. Ensure the soil is not waterlogged.

Sunlight: The tree prefers full sun but can also grow in partial shade.

Hardiness Zones: The tree is hardy in USDA zones 9 to 11.

Common Pests & Diseases

Metrosideros Polymorpha is relatively pest and disease-free, but it can be susceptible to root rot if the soil is too wet. Here are some common pests and diseases to watch out for:

Root Rot: This disease occurs when the soil is too wet, and the roots start to rot. The tree may show signs of wilting, yellowing leaves, and stunted growth.

Scale: These insects can infest the tree leaves and stems, causing yellowing and curling of the leaves.

Aphids: These insects can infest the tree leaves and cause stunted growth and yellowing of the leaves.

Habitat

Metrosideros Polymorpha is native to Hawaii and is found on all the main islands. The tree grows in a variety of habitats, including dry and wet forests, lava fields, and coastal areas. It is an important part of the Hawaiian ecosystem, providing food and shelter to many native birds and insects.

Question and Answer

Q: Is Metrosideros Polymorpha a good tree for landscaping?

A: Yes, Metrosideros Polymorpha is a great tree for landscaping as it is low maintenance and has beautiful, year-round blooms.

Q: Can I grow Metrosideros Polymorpha in a container?

A: Yes, you can grow Metrosideros Polymorpha in a container as long as the container is big enough and the soil is well-draining. However, the tree may not grow as big as it would in the ground.

Q: Can I propagate Metrosideros Polymorpha from cuttings?

A: Yes, you can propagate Metrosideros Polymorpha from cuttings. Take a 6-inch cutting from a healthy tree and dip the end in rooting hormone. Plant the cutting in a pot with well-draining soil and keep it moist until it starts to root.

Q: How often should I prune Metrosideros Polymorpha?

A: You should only prune Metrosideros Polymorpha to remove dead or diseased branches. Avoid pruning the tree too much as it can affect the growth of the tree.

Related Plants

Here are some related plants to Metrosideros Polymorpha:

• Metrosideros Excelsa
• Metrosideros Kermadecensis
• Metrosideros Umbellata

References

• Wagner, W. L., Herbst, D. R., & Sohmer, S. H. (1999). Manual of the flowering plants of Hawaii. University of Hawaii Press.
• Gagné, W. C. (1993). The biology of the Hawaiian Metrosideros Polymorpha-Gloveria Spp. Complex (Myrtaceae): a review. Pacific Science, 47(3), 241-253.
• NPS. (n.d.). Native Plants. National Park Service. Retrieved August 02, 2021, from https://www.nps.gov/havo/learn/nature/native-plants.htm