Tall-growing pampas grass thrives in warm weather and many people like growing it in containers. Container growing controls the direction that this fast-growing grass expands and keeps it from overwhelming a yard or garden. Whether growing a small section of pampas grass to put on a sunny patio or filling a large urn to enjoy the ornamental tops, container growing will give you the look and control you want.
Select an area to place your container. Look for a spot in your yard where the grass will receive full sunlight.
Pick a well-draining container for your grass. The pot should be at least 18 inches in diameter.
Fill one-third of the pot with a mixture of potting soil and compost. The ratio should be 50/50.
Place the root ball in the pot. Fill the pot to the rim with the potting soil and compost mixture. The root ball should be completely covered and not protrude from the top of the pot.
Water the grass thoroughly until you see water streaming from the bottom of the pot. Water the plant weekly in the absence of less than 1 inch of natural weekly precipitation.
Fertilize the grass when you first plant it. An all-purpose 10-10-10 fertilizer is ideal.
Stake the plant to support its growth. This will only be necessary when the plant is young and needs a little strength. Drive a tall wooden stake in the ground. Tie the grass to the stake loosely with a 6-inch strip of cloth.