The bright colors of the amaryllis plant's blossoms come in a wide range of hues, from red to pink to bicolored, according to Clemson University. This plant produces underground bulbs, which can be divided and replanted every year to expand your amaryllis plant collection. In just a few years, a single amaryllis plant can provide you with multiple new plants for a stunning garden bed.
Dig out the amaryllis plant with a spade after it has flowered, typically during the months of July through November, according to the University of Florida. Some gardeners find digging the plant out with a pitchfork helps reduce plant breakage.
Inspect the amaryllis bulb base, comprising several fleshy bulbs connected to a rooted plate. Cut apart the bulbs, with each bulb having its own section of the rooted plate.
Trim off any dead, yellow or wilted foliage or stems off of the bulbs. Leave green foliage intact.
Amend the original gardening site and the new areas in which you'll be planting the bulbs. Mix in 2 to 3 inches of compost to boost the soil's micronutrient levels and its ability to hold moisture. Follow with a fertilizer. Clemson University recommends using a 6-12-12 or 5-10-10 flower fertilizer, spread at a rate of 1/2 lb. for every 50 square feet of gardening soil.
Replant the amaryllis bulbs. Bury each bulb with its rooted plate facing down. Sink the bulb deep enough so its bottom third is underground, according to the University of Florida. Typically, gardeners replant the largest bulbs from the center of the original amaryllis bunch back into the original gardening site, and transplant the smaller side bulbs to new areas in their garden.
Spread a couple inches of mulch around the plants to help conserve water and keep the replanted bulbs hydrated.
Water the replanted amaryllis plants twice daily or as needed to keep the top 4 to 5 inches of dirt moist. The plants will establish themselves and display new growth within two months, according to the University of Florida.