Taming the Tresses: Propagating the Beautiful Andropogon Bicornis
Andropogon bicornis, also known as broomsedge bluestem or whiskery bluestem, is a captivating ornamental grass that adds a touch of wild elegance to any garden. Its graceful, arching foliage and distinctive, fluffy seed heads – reminiscent of a fox’s tail – create a mesmerizing display, especially when swaying in the breeze.
If you’re captivated by this charming grass and want to expand its presence in your landscape, you’re in luck! Propagating Andropogon bicornis is relatively straightforward, and this guide will equip you with the knowledge to do so successfully.
Two Paths to Propagation:
While propagating Andropogon bicornis from seed is possible, it’s not the most reliable or efficient method. This grass readily hybridizes with other Andropogon species, resulting in offspring that may not exhibit the desired characteristics. Therefore, division is the preferred technique, offering faster results and ensuring genetic consistency.
Division: The Winning Strategy
Dividing established clumps of Andropogon bicornis is best done in early spring just before new growth emerges or in early fall when temperatures begin to cool. Here’s a step-by-step guide:
- Prepare the New Home: Choose a sunny location with well-drained soil. Andropogon bicornis tolerates a wide range of soil conditions but prefers slightly acidic to neutral pH.
- Dig Up the Clump: Using a sharp spade or shovel, carefully dig around the perimeter of the clump, ensuring you go deep enough to avoid damaging the root system.
- Divide and Conquer: Gently lift the entire clump out of the ground and shake off excess soil. Depending on the size, you can either pull the clump apart by hand or use a sharp knife or saw to divide it into smaller sections.
- Replanting Time: Plant the divided sections at the same depth they were previously growing. Space them according to the desired fullness, keeping in mind that they will spread over time.
- Water Well and Mulch: Water the newly planted divisions thoroughly and apply a layer of organic mulch around the base to help retain moisture and suppress weeds.
Seed Propagation: A More Challenging Route
If you’re up for a horticultural adventure and want to try propagating from seed, here’s how:
- Seed Collection: Harvest mature seed heads in late fall after they have turned brown and dried completely.
- Cold Stratification (Optional): While not mandatory, cold stratification can help improve germination rates. Place the seeds in a moist paper towel within a sealed plastic bag and store in the refrigerator for 4-6 weeks.
- Sowing the Seeds: In spring, sow the seeds directly outdoors after the last frost or start them indoors 6-8 weeks before the last expected frost.
- Provide Light and Moisture: Place the seed trays in a bright location but out of direct sunlight. Keep the soil consistently moist but not waterlogged.
- Transplantation Time: Once the seedlings are large enough to handle, transplant them into individual pots or directly into the garden.
Patience is Key:
Remember that whether you choose division or seed propagation, patience is crucial. It may take some time for your new Andropogon bicornis plants to establish themselves and reach their full potential. But with proper care and attention, these stunning grasses will reward you with years of beauty and graceful movement in your garden.