Grow Your Own River of Blades: Propagating Hardy Phalaris Aquatica
Phalaris aquatica, also known as Harding grass, is a robust, fast-growing perennial grass prized for its striking appearance and versatility. Whether you’re looking to create a lush green screen, provide erosion control, or simply add some texture to your landscape, Phalaris aquatica is an excellent choice. And the best part? It’s surprisingly easy to propagate!
This comprehensive guide will walk you through two of the most effective methods:
1. Propagation from Seed
This method is ideal for those starting from scratch and seeking to establish a large stand of Phalaris aquatica.
Step 1: Seed Collection and Preparation
- Timing is key: Collect seeds in late summer or early fall when the seed heads turn tan and dry.
- Gently remove the seed heads and spread them out on a tray or newspaper in a well-ventilated area for a week to dry completely.
- Once dry, separate the seeds from the chaff by rubbing the seed heads between your hands.
Step 2: Sowing the Seeds
- Prepare your seedbed: Choose a location with full sun to partial shade and well-drained soil.
- Sow the seeds: Sprinkle them evenly over the prepared soil, pressing them lightly into the surface.
- Water consistently: Keep the soil moist but not waterlogged until the seeds germinate, which typically takes 7-14 days.
- Thinning: As the seedlings emerge and grow, thin them out to a spacing of 12-18 inches to allow for optimal development.
2. Propagation by Division
For those who already have an established clump of Phalaris aquatica, division is a faster and more efficient propagation method.
Step 1: Timing and Preparation
- Divide in spring or fall: This allows the plant ample time to recover and establish itself before facing extreme temperatures.
- Prepare the new planting site: Choose a location with the same light and soil conditions as the parent plant.
Step 2: Dividing the Clump
- Water the parent clump thoroughly: This will make it easier to dig up and separate the roots.
- Carefully lift the clump from the ground using a sharp spade or garden fork.
- Divide the clump into smaller sections, each with a healthy amount of roots and shoots.
- Replant immediately: Place each division into its prepared hole, ensuring the crown is level with the surrounding soil. Water thoroughly.
Caring for Your New Phalaris Aquatica
- Regular Watering: Water deeply and consistently, especially during the first year after planting, to establish a strong root system.
- Fertilizing: While not essential, a light application of a balanced fertilizer in spring can encourage lush growth.
- Pruning: Trim back any dead or unsightly foliage in early spring to maintain a tidy appearance.
- Control and Awareness: Be mindful that Phalaris aquatica can spread quickly and may be considered invasive in certain regions. Check local regulations and consider using root barriers if necessary.
Enjoy Your Garden’s River of Blades!
With proper care and attention, your propagated Phalaris aquatica will reward you with years of beauty and effortless elegance in your garden. So why wait? Get your hands dirty and start propagating today!