Koeleria Colorgrass Coolio, known as Koeleria glauca or Blue Hairgrass, is a perennial ornamental grass native to Eurasia. PanAmerican developed this cultivar that offers a mounded, tidy habit of 8-10" tall and wide, with excellent heat tolerance. Well-suited to mixed containers, garden edges, or small areas of ground cover, Koeleria Colorgrass Coolio is also exceptional in rock gardens. Flourishing in full or partial sun, this plant thrives in heat and is perennial in zone 6-8. Spikes are lovely in fresh or dried bouquets. For a unique ornamental grass, try growing Juncus Colorgrass Twister.
Koeleria Colorgrass Coolio Selling Tips
Sell Koeleria Colorgrass Coolio to customers looking for color contrast or foliage to add to a mixed container or landscape border. This plant offers upright blue-green foliage well-suited to mixed containers, landscape beds, and patio pots. Bring evergreen color to the garden in zones 6-8 with this drought-tolerant grass. Create a visually striking display of color and texture by pairing Koeleria Colorgrass Coolio with Euphorbia, Artemisia, Sedum, Lavender, Sempervivum, Dianthus, Salvia, and Aubrieta.
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 6, remove plants after frost or overwinter containers in a protected area.
General Growing Tips For Your Seedling Tray
For best results with Koeleria Colorgrass Coolio, 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 62-74 daytime and 59-64 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. This plant doesn't require pinching or PGRs. Be careful not to bury plugs too deeply at transplant. Watch for root rot and aphids.
Flowering
This plant is grown for its foliage.
Pinching
This plant doesn't require pinching.
Spacing
We recommend spacing 4-inch containers 6-8" apart and gallon containers 10-12" 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
Koeleria Colorgrass Coolio 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 Koeleria Colorgrass Coolio 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.
Koeleria Colorgrass Coolio Quick Reference Guide
| 4 Inch crop time | 6-7 Weeks |
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| Bloom Period | Year Round |
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| Color | Green |
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| Habit | Mounding |
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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 6-8 |
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| Water Needs | Moderate |
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| Patented Plant | Yes |
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