Origin and Common Names
Dodonaea viscosa Jacq. var. linearis (Harvey & Sonder) Sherff, also known as Akeake or Hopbush, is a multi-branched shrub that belongs to the Sapindaceae family. The plant is native to New Zealand, Australia, and Pacific islands. It grows in various habitats, including coastal forests, rocky areas, and sand dunes.
Appearance
Akeake is a small tree or shrub that can reach up to 5 meters in height. The plant has tough, leathery, and sticky leaves that are often oblong or lanceolate-shaped, usually measuring 3 to 10 cm in length. The leaves are green and glossy on the upper surface, while the lower surface is paler with small, warty protuberances.
The flowers of the Akeake plant are small and insignificant, forming in long clusters on the branches. The fruit of the plant is a woody capsule that splits apart when ripe, dispersing the small black seeds.
Uses
The Akeake plant has several traditional uses. In New Zealand, Maori people used the plant to treat various medical conditions, such as diarrhea, wounds, and skin irritations. The bark of the plant was also used for making ropes and fishing nets.
Akeake is often used in landscaping and gardening due to its attractive foliage and drought tolerance. The plant is also used for fuelwood and as a source of honey for bees. The wood of the plant is hard, durable, and has a high resistance to decay, making it useful for constructing furniture, handles, and tool parts.
Light Requirements
Dodonaea viscosa Jacq. var. linearis requires full sun to partial shade for optimal growth. It grows well in areas with bright light as well as in partially shaded areas. When grown in an area with insufficient light, the plant grows weakly and develops fewer leaves.
Temperature Requirements
This plant can tolerate a wide range of temperatures. It can grow in both hot and cold climates, making it a versatile plant. However, it prefers warm temperatures and is more productive in areas where the temperature ranges from 18°C to 30°C. When the temperature drops below 10°C, the plant becomes dormant and stops growing until the temperature rises.
Soil Requirements
The Dodonaea viscosa Jacq. var. linearis plant requires well-draining and nutrient-rich soil. It thrives in a soil with a pH ranging from 6.0 to 7.5. It can grow in soils with a higher pH, but the plant may develop yellow leaves due to iron deficiency. Sandy, loamy, and clay soils are suitable for this plant as long as the soil is well-draining.
The plant can withstand dry conditions and grows well in soil with low to moderate moisture content. However, it does not do well in areas with high moisture content, and there is a risk of root rot in such areas.
Cultivation Methods
Dodonaea viscosa Jacq. var. linearis (Harvey & Sonder) Sherff grows best in well-drained soil with good fertility. It is recommended to grow the plant in full sun to part shade conditions. It also thrives in areas with high humidity and warm temperatures. You can grow Dodonaea viscosa Jacq. var. linearis (Harvey & Sonder) Sherff in a pot or directly in the ground. Ensure the plant is in a location with adequate space for its growth.
Watering Needs
The plant requires regular watering, mainly during the growing season. Water the plant deeply but infrequently to help establish deep roots. Once the plant is established, reduce the frequency of watering as it becomes drought tolerant. Always check the soil moisture level before watering and avoid overwatering as it can lead to root rot.
Fertilization
Dodonaea viscosa Jacq. var. linearis (Harvey & Sonder) Sherff requires occasional fertilization to maintain its vibrant look. Fertilize the plant with a balanced slow-release fertilizer in early spring before new growth starts. You may also add a light top dressing of compost around the base of the plant. Avoid over-fertilizing the plant as it can lead to excessive vegetative growth and weak, spindly branches.
Pruning
Dodonaea viscosa Jacq. var. linearis (Harvey & Sonder) Sherff requires moderate pruning to shape and control its growth. Prune the plant during the dormant season to encourage new growth in spring. It is best to prune the plant before new growth starts. Additionally, remove any diseased, dead or damaged wood throughout the year. You can prune the plant to a size that suits your landscape preference.
Propagation methods for Dodonaea viscosa Jacq. var. linearis (Harvey & Sonder) Sherff
Dodonaea viscosa Jacq. var. linearis (Harvey & Sonder) Sherff, commonly known as Akeake, is a shrub or small tree native to New Zealand. The plant is hardy and can easily be propagated from seeds or cuttings.
Propagation by seeds
The plant produces small, oblong seeds that can be collected when mature. The seeds can be sown either directly in the ground or in containers filled with well-draining soil. For optimal germination, the seeds should be placed in a warm, sunny location and kept moist throughout the germination period. Germination typically occurs within 2-3 weeks.
Propagation by cuttings
Another effective way to propagate Dodonaea viscosa Jacq. var. linearis is through stem cuttings. Cuttings should be taken from mature shrubs during the growing season, typically in late spring or early summer. Choose new growth that is semi-hard and about 10-15 cm in length. Remove the leaves from the lower half of the cutting and dip the bottom end in rooting hormone before placing it in a container filled with well-draining soil. Keep the soil evenly moist and place the container in a warm, bright location. Roots should start to develop within 4-6 weeks.
Once the plants have established roots and are growing well, they can be transplanted to their permanent location. Ensure the soil is well-draining and the location receives ample sunlight. Keep the soil evenly moist but not waterlogged.
Disease and Pest Management for Dodonaea viscosa Jacq. var. linearis (Harvey & Sonder) Sherff
Dodonaea viscosa Jacq. var. linearis, commonly known as Hop Bush or Sticky Hop Bush, is a flowering shrub native to Australia, New Zealand, and the Pacific Islands. This plant is known for its hardiness and drought-resistant qualities. However, like any other plant, it is susceptible to diseases and pests that can significantly affect its growth and overall health. Here are some common diseases and pests that might affect the plant and ways to manage them.
Common Diseases
1. Anthracnose - Anthracnose is a fungal disease that causes brown spots on the leaves and can eventually lead to defoliation. It thrives in wet and humid conditions, making it more prevalent during the rainy season. To manage anthracnose, remove and destroy infected leaves, increase air circulation around the plant, and avoid overhead watering.
2. Powdery mildew - Powdery mildew is a fungal disease that appears as a white or grayish powder on the leaves, stems, and flowers. It causes distorted growth and can lead to premature leaf drop and stunted growth. To manage powdery mildew, prune infected areas, increase air circulation around the plant, avoid overhead watering, and apply fungicides.
3. Root rot - Root rot is caused by waterlogging or overwatering of the soil. It can cause the plant to wilt and eventually die. To manage root rot, ensure proper drainage of the soil, avoid overwatering and waterlogging, and use well-draining soil.
Common Pests
1. Scale insects - Scale insects are small, oval insects that attach themselves to the stems and leaves of the plant. They suck the sap from the plant, causing yellowing and wilting. To manage scale insects, prune heavily infested branches and stems, use horticultural oils, and apply biological control agents.
2. Spider mites - Spider mites are tiny arachnids that cause yellowing and webbing on the leaves of the plant. They thrive in hot and dry conditions. To manage spider mites, increase humidity around the plant, apply insecticidal soap, and spray the leaves with water to wash off the mites.
3. Aphids - Aphids are small, soft-bodied insects that suck plant sap and cause distorted growth. They can quickly multiply and damage the plant severely. To manage aphids, prune heavily infested areas, use insecticidal soap, and release natural predators like ladybugs.
Proper monitoring of the plant's growth and regular maintenance can significantly reduce the risk of diseases and pest infestation. However, if the problem persists, seek advice from a professional horticulturist or gardener.
