Hakonechloa: Potted Plant Perennial
How to Plant
Planting Potted Plants:
- Choose a location in full shade or part shade, with moist, rich, well-drained soil.
- Prepare the bed by turning the soil under to a depth of 6-12 inches removing any debris, and lightly raking as level as possible.
- The addition of organic matter (leaf mold, compost, well-rotted manure) benefits all gardens and is essential in recently constructed neighborhoods.
- Plant on a cloudy day or in late afternoon to reduce transplant shock.
- Dig a hole for each plant large enough to amply accommodate the root ball.
- Unpot the plant and gently loosen the root ball with your hands to encourage good root growth.
- Place the top of the root ball even with the level of the surrounding soil. Fill with soil to the top of the root ball. Press soil down firmly with your hand.
- Use the plant tag as a location marker.
- Thoroughly water and apply a light mulch layer on top of the soil (1-2 inches) to conserve water and reduce weeds.
How to Grow
- Keep weeds under control during the growing season. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their germination.
- Mulches also help retain soil moisture and maintain even soil temperatures. For perennials, an organic mulch of aged bark or shredded leaves lends a natural look to the bed and will improve the soil as it breaks down in time. Always keep mulches off a plant’s stems to prevent possible rot.
- Careful watering is essential in getting perennials off to a good start. Water thoroughly at least once a week to help new roots grow down deeply. Soil should be damp at about 1 inch below the soil surface. You can check this by sticking your finger in the soil. Water early in the morning to give all leaves enough time to dry. One inch of rain or watering per week is recommended for most perennial plants. You can check to see if you need to add water by using a rain gauge.
- Until plants become established, some protection from extreme winds and direct, hot sunlight may be necessary. Good air movement is also important.
- After new growth appears, a light fertilizer may be applied. Keep granular fertilizers away from the plant crown and foliage to avoid burn injury. Use low rates of a slow release fertilizer such as Garden-tone, as higher rates may encourage root rots.
- In milder areas hakonechloa may be evergreen. In colder areas it will die to the ground.
- Use as a border, edging, in a container, where its cascading foliage will produce a waterfall effect.
- Plants bloom but this grass is primarily grown for its showy foliage. Color is more yellow in deep shade, greener in part shade. In fall the foliage exhibits pink highlights.
Common Disease Problems
Bacterial Leaf Spot: First signs are small translucent spots with a broad yellowish edge that slowly enlarge and become angular or irregularly circular with a reddish center. It thrives in cooler temperatures. The disease may also affect and disfigure flower heads. Burpee Recommends: Remove infected plants. Avoid overhead watering. Do not work around plants when they are wet.
Crown and Root Rots: A number of pathogens cause root rots of seedlings as well as mature roots. This can come from being planted too deeply, or poor drainage. Burpee Recommends: Pull up and discard infected plants. Make sure your soil has excellent drainage. Contact your Cooperative Extension Service for recommendations.
Common Pest and Cultural Problems
Leaf Scorch: Hakonechloa can develop scorched foliage when it is planted in full sun. Burpee Recommends: Plant in part to full shade.
Rabbits: Chew on plant leaves, particularly the new growth. Burpee Recommends: Use a hot pepper wax spray or rabbit repellent.
Spider Mites: These tiny spider-like pests are about the size of a grain of pepper. They may be red, black, brown or yellow. They suck on the plant juices removing chlorophyll and injecting toxins which cause white dots on the foliage. There is often webbing visible on the plant. They cause the foliage to turn yellow and become dry and stippled. They multiply quickly and thrive in dry conditions. Burpee Recommends: Spider mites may be controlled with a forceful spray every other day. Try hot pepper wax or insecticidal soap. Check with your Cooperative Extension Service for miticide recommendations.
Do I need to divide my hakonechloa? The plant spreads slowly so you should not need to divide it for many years. You can divide it in spring or fall.
Can I grow hakonechloa in containers? Yes, it’s great for containers.
Is hakonechloa deer resistant? Yes it is deer resistant.
Is hakonechloa native to the USA? No it is native to Japan.
What are good companion plants for hakonechloa? Hostas, heucheras and Japanese anemone are great companions for hakonechloa.