Various gray branches, full of green leaves.

koa

Acacia koa

Koa (Acacia koa) is an amazing Hawaiian tree species that is known for its beautiful and unique appearance. Grown for its dark green foliage and sweetly scented yellow flowers, Koa is a highly valued species that can be found throughout the Hawaiian Islands. Its wood is known for its deep, warm tones and is often used in furniture, musical instruments and woodworking. Its wood is also highly resilient, rot-resistant and fire resistant, making it a great choice for outdoor use and landscaping. Koa is an incredibly versatile species that adds unique character to any location and is a must-have in any Hawaiian garden.

Cycle:

Perennial

Watering:

Average

Propagation:

Air Layering Propagation,Grafting Propagation,Cutting,Seed Propagation

Hardiness Zone:

10 - 11

Flowers:

Pale yellow Flowers

Sun:

full sun

Fruits:

brown,black Fruits Ready In

Growth Rate:

High

Maintenance:

Moderate

Drought Tolerant:

Yes

Care Level:

Medium

watering

Koa (Acacia koa) needs to be watered about once a week, or more frequently if the soil is drying out quickly. It is best to water deeply, to a depth of 6 inches or more, to encourage deep roots. Allow the soil to dry somewhat between waterings, but not completely. Koa should not be allowed to sit in saturated or very wet soil. During the summer days when temperatures reach higher levels, Koa may need to be watered more frequently. During the winter months, when temperature and light levels are lower, Koa needs less frequent watering and the soil should be allowed to dry out slightly between waterings.

sunlight

Koa (Acacia koa) plants thrive in full sun when grown outdoors. However, young plants should receive only partial shade for the first few years to help them adjust to the environment. In general, they should receive between 6 and 8 hours of direct sunlight every day.

pruning

Koa trees (Acacia koa) should be pruned in late fall or early winter. When pruning koa, it is important to consider the overall shape of the tree and remove any dead, damaged, or diseased branches. Also, select branches to prune for size and to shape the tree, and try not to prune more than 1-third of the total growth in 1 season as this could cause shock to the tree. If you are trying to thin out the canopy of the tree, remember to prune multiple branches in different areas. This allows sunlight and air to move into the foliage and helps reduce the surface area on the koa.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Koa trees typically start flowering in April or May.

Harvest Fruit

tree The harvesting season for Acacia koa (koa tree) typically begins in June and continues through August.

Hardiness Map