Alphitonia ponderosa
Images by part: leaf (4) · flower (1) · fruit (0) · bark (1) · habit (1) · other (0)

Alphitonia ponderosa

Hawai'i kauilatree · Kauila

Tier 2 Difficulty: easy Water: low Light: partial_sun
Temperature
20–37 °C
Soil pH
6–7
Hardiness
Zone 10–12
0
Observations
2

Description

Source: leafsnap

Alphitonia ponderosa is a species of flowering tree in the family Rhamnaceae, that is endemic to the Hawaiian Islands. It is locally known as kauila, as is the related Colubrina oppositifolia.

Care Guide

💧 Water

The Hawai'i kauila tree, native to Hawaii, flourishes in consistently moist, tropical environments. To keep it healthy, it needs to be watered weekly, although it does have a moderate tolerance for drought. When growing the kauila tree outdoors, it's important to take into account the seasonal rainfall patterns. This ensures that irrigation aligns with the natural precipitation cycles for optimal growth.

☀️ Light Partial sun

Hawai'i kauilatree naturally grows in habitats such as forest understories or rocky terrain, where it is subject to natural shade. It prefers partial sun but can tolerate full sun or full shade, showing its adaptable and hardy character.

Ideal: Partial sun
🌡️ Temperature 20–37.8°C

Hawai'i kauilatree comes from tropical areas where the climate is generally warm and humid. As such, it is well adapted to high temperatures and moisture. It does not tolerate sudden temperature shifts and prefers a constant temperature environment, so it is important to avoid temperature fluctuations indoors. It usually cannot withstand cold temperatures and needs higher temperatures to grow. If the ambient temperature falls too low, the plant may stop growing or even die.

Ideal temperature: 20–37.8°C
💨 Humidity
Humidity:
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

Providing fertilizer is essential to caring for the Hawai'i kauilatree. Routine feeding throughout the growing season supplies energy to maintain its showy leaves and promotes overall growth. If fertilization is neglected, leaves can become unhealthy, the plant's ornamental value can decline, and growth may be stunted or weakened, making it more prone to breakage.

🪴 Pot & Repot
✂️ Pruning

The Hawai'i kauila tree is a resilient species characterized by its hardy foliage and distinctive bark. Pruning during the winter months, from early to late, is beneficial for the tree’s health. It removes dead branches and improves air circulation. Using proper pruning techniques can promote growth and increase the tree's resistance to disease. For the best results, consult authoritative guides to learn tailored pruning methods specific to the Hawai'i kauila tree.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Tree
Life Cycle
Perennial
Genus
Alphitonia
Family
Rhamnaceae
Hardiness Zone
10-12
Mature Height
10.06 m to 20.12 m
Mature Spread
4.88 m to 10.06 m
Leaf Color
Dark Green, Olive Drab
Leaf Type
Evergreen
Flower Size
0.25 cm to 0.51 cm
Bloom Time
Late spring, Early summer, Mid summer
Planting Time
Spring, Summer, Autumn
Harvest Time
Late summer, Early fall, Mid fall

Tags (5)

Common Names (2)

en Hawai'i kauilatree
en Kauila