Pruning and Dividing Pampas Grass: Tips for a Safe and Healthy Garden

Pampas grass (Cortaderia selloana) is a striking and popular ornamental grass known for its tall plumes and graceful appearance. However, maintaining this plant requires some careful attention, especially when it comes to pruning and dividing. Here’s a quick guide to help you navigate these tasks safely and effectively.

Pruning Pampas Grass:

Pruning is essential for keeping pampas grass healthy and attractive. It helps remove dead or damaged growth, encourages new growth, and prevents the plant from becoming too overgrown. However, pruning pampas grass requires caution due to its razor-sharp leaves.

Before you begin, make sure to wear sturdy gloves to protect your hands from cuts and scratches. Pampas grass leaves can be razor-sharp, and even a slight brush against them can result in painful injuries.

Here’s how to prune pampas grass safely:

• Wait for the Right Time: The best time to prune pampas grass is in late winter or early spring, before new growth begins. This allows you to remove the dead foliage from the previous year without damaging new growth.
• Gather Your Tools: You’ll need a pair of sharp pruning shears or loppers to cut through the thick stems of the grass. Additionally, keep a pair of gloves and protective eyewear handy to shield yourself from any flying debris.
• Cut Down to 500mm: Start by cutting the old foliage down to the base of the plant, 500mm above the ground. Trim away any dead or damaged leaves, making clean cuts to promote healthy regrowth.
• Old Saw The GardenAdvice team often use an old wooden saw to rake through the pampas grass once its cut down to remove and old dead stems or dead leaves in the base of the plant 
• Feeding once pruned in the spring some high nitrate feed can be applied to create lot of new growth, then in midsummer switch to a high potash feed to encourage the grass to make some fresh plumes for the winter 

Dividing Pampas Grass:

Dividing pampas grass is necessary when the plant becomes overcrowded or outgrows its space. It helps rejuvenate the plant, promote better growth, and prevent it from becoming invasive.

Follow these steps to divide pampas grass safely:

• Choose the Right Time: The best time to divide pampas grass is in early spring, just before new growth begins. This allows the divided sections to establish themselves before the growing season kicks in.
• Dig Up the Plant: Carefully dig around the base of the pampas grass clump, making sure to dig deep enough to loosen the roots. Use a sharp shovel or garden fork to gently pry the clump out of the ground, taking care not to damage the roots.
• Divide the Clump: Once you’ve lifted the clump out of the ground, use a sharp knife or saw to divide it into smaller sections. Each section should have a healthy portion of roots and foliage to ensure successful transplantation.
• Replant the Divisions: Plant the divided sections of pampas grass in their new locations, making sure to space them adequately to allow for future growth. Water the transplants thoroughly to help them settle into their new surroundings.

Safety Precautions:

When pruning and dividing pampas grass, it’s essential to take safety precautions to avoid injuries. Always wear gloves, long sleeves, and protective eyewear to shield yourself from the plant’s sharp leaves and any flying debris. Additionally, use caution when handling pruning tools and sharp objects to prevent accidents.

By following these tips, you can safely prune and divide your pampas grass to keep it looking its best and ensure a healthy and vibrant garden. Remember to always prioritise safety and take your time to do the job correctly.