Juncus Colorgrass Starhead, known as Juncus ensifolius or Dagger-leaf Rush, is a perennial ornamental grass native to North America. PanAmerican developed this cultivar that offers a compact habit of 8-10" tall and wide with broad leaves and dark green star-shaped flowers. Flourishing in full or partial sun, this plant excels in combination containers, borders, and landscape beds. It is evergreen in zone 4-10, bringing texture and depth to any landscape. For a taller variety, try growing Juncus Colorgrass Javelin. Our seedling plugs arrive ready to transplant into your final container.
Juncus Colorgrass Starhead Selling Tips
Sell Juncus Colorgrass Starhead to customers looking for color contrast or foliage to add to a mixed container or landscape border. This variety offers a compact habit, broadleaf foliage, and dark green star-shaped flowers. Starhead is well-suited to patio pots, edges, and mixed landscape beds. Bring evergreen color to the garden in zones 4-10 with foliage that flourishes in full or partial sun. Create a visually striking display of color and texture by pairing Juncus Colorgrass Starhead with Thyme, Heuchera, Sedum, Ajuga, Sempervivum, Marsh Marigold, Astilbe, and Hostas.
Coach Your Customer
1. Space plants 8-10" apart in well-drained soil in full or partial sun.
2. Water occasionally or more in dry weather.
3. In climates colder than zone 4, remove plants after frost or overwinter containers in a protected area.
General Growing Tips For Your Seedling Tray
For best results with Juncus Colorgrass Starhead, grow one seedling plug per 1801 cell or 4-inch container or one to three per 6-inch or gallon container. Use well-drained soil with a pH of 5.5-6.2, EC of 1.2-1.5 mS/cm, temperatures of 66-74 daytime and 64-66 nighttime, and moderate feed (175-225 ppm N). Use a nitrate-based fertilizer with low phosphorus and don't use too much ammonia or a nitrogen fertilizer. Overfeeding will cause plants to fall over. This plant doesn't require pinching or PGRs. Watch for root rot and aphids.
Flowering
This variety offers long-lasting dark green star-shaped flowers.
Pinching
This plant doesn't require pinching.
Spacing
We recommend spacing 4-inch containers 8-12" apart and gallon containers 12-18" apart for adequate airflow and sunlight penetration around the base and foliage of each plant. Adjust spacing as needed in your greenhouse.
Height Control
This plant doesn't require PGRs.
Pests
Scout for aphids as part of your greenhouse's Integrated Pest Management program. Prevention and early intervention are the best methods of pest control.
Aphids are small, soft-bodied insects that cause damage by sucking sap from plant tissue. They reproduce quickly and are particularly attracted to young growth. Curling and yellowed leaves, stunted growth, and stickiness on leaves are signs of an infestation. These insects also spread diseases and reproduce rapidly. Use biological controls or horticultural oils to discourage and kill aphids.
Disease
Juncus Colorgrass Starhead isn't prone to disease. Root rot can occur in overly wet conditions. Use well-draining soil, water at the base of each plant in the morning, and provide good airflow in your greenhouse.
Root Rot occurs in poorly drained or overly wet soil, which becomes the host for several types of fungi. It causes stunted growth, wilting, and root system decay. Prevention is the best treatment, and you will avoid most root rot problems by using clean, well-draining media, appropriate containers, and good watering practices for finishing seedling plugs. Inspect plants for signs of disease regularly. Repot infected plants in well-draining soil, adjust your watering schedule, provide better airflow, and use a fungicide if needed.
Planting Juncus Colorgrass Starhead Liners
We recommend growing one seedling plug per 1801 cell or 4-inch container or three per 6-inch or gallon container. Use well-drained soil and center or evenly space the seedling plugs in the containers.
Rooted Cuttings
Cuttings vary in size between different plant families. These rooted starter plants will arrive ready to be transplanted in to your final container. If they are to be used in a landscape application, you will need to establish them in a 4 inch pot or an 1801 before planting outside.
Juncus Colorgrass Starhead Quick Reference Guide
| 4 Inch crop time | 7-8 Weeks |
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| Bloom Period | Year Round |
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| Color | Green |
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| Habit | Compact |
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| Height | 8-10 inches |
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| Light | Full Sun, Partial Sun |
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| Minimum Temp | 64 |
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| Perennial Zone | Zones 4-10 |
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| Water Needs | Moderate |
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| Patented Plant | Yes |
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