Orchids (Orchidaceae) are recognizeable by their one large flower petal, and two slightly smaller ones. They are popular perennial herbs because they are so easy to grow. Orchids can be kept in pots, but need to be repotted every two years. Potting soil breaks down over time, the material within it begins to decay, and the roots of the orchid can grow out and over the pot if the pot is no longer big enough to support the flower.
Lay a few sheets of newspaper on the ground outside if you can. Otherwise, lay the newspaper on an indoor table.
Put on a pair of gardening gloves, and place your orchid pot over the newspaper and give it a few taps to get the soil loose from the sides of the pot.
Turn your orchid pot on its side and carefully remove the orchid along with the soil.
Remove the potting soil that is still in the pot, and any soil that is stuck to the roots of the orchid plant. You may need to use your fingers to do this.
Decide whether your orchid needs a new larger pot, or if you just need to clean out your old pot. If you choose a new pot, make sure it has drainage holes.
Mix sphagnum moss and perlite together. Place a thin layer of this mixture in the bottom of your flower pot.
Put your orchid in the pot and add more of your sphagnum moss/perlite mixture. Be sure to completely cover all of the roots.
Add a 30-10-10 fertilizer so that your orchid gets some added nutrients. Then water the orchid until the soil is moist, but not soaked.
Set your orchid in the sun, and plan on repotting again in two years.