How to Divide a Coreopsis
The Coreopsis is a bright and beautiful perennial that can add color to any garden, field or landscape. However, as with many other types of perennials, the coreopsis occasionally needs to be divided in order to promote new growth of blooms and flowers. So, here is a handy how-to guide on how to properly divide the coreopsis.
Step 1 - Remove the Coreopsis From the Ground
Carefully lift out the coreopsis plants that you want to divide from the ground, make sure to be gentle with the roots so as to not damage them. You may need to use a small garden spade or other garden tool to carefully dig out the root system.
Step 2 - Remove Old Growth
Carefully remove the loose dirt and soil from the roots of the coreopsis plant you want to use for your divisions.
Step 3 - Separate the Plants
Carefully separate the plants by hand.
Step 4 - Check the Main Root Ball
Check the main root ball to see if it is weak and woody; if it is - simply discard it. If the main root ball appears to be okay, leave it connected to one of your divisions and use it in the planting.
Step 5 - Make Your Divisions
Choose the most vigorous parts of the plant and divide it into sets of 3 to 5 shoots each.
Step 6 - Check the Divisions Again
Now, check your divisions again and make sure that they all appear healthy and don't appear to be overly dry or otherwise unhealthy. If there are division roots that appear to be unhealthy, simply discard them.
Step 7 - Choose a New Location for Your Divisions
Before transplanting your coreopsis divisions, you'll need to choose a adequate location for them. Make sure to choose a location that receives direct sunlight for at least 6 to 8 hours a day.
Step 8 - Prepare the Soil
Before planting you knew divisions, make sure your soil is adequately prepared by using a quality compost, peat moss or even animal manure. If you have some, super phosphate is a good also as it really helps to get your coreopsis flowers off to a good start.
Step 9 - Replant the Coreopsis Divisions
Next, you'll need to replant your coreopsis divisions in a soil depth that is equivalent to that which was used for the original coreopsis plant.
Step 10 – Create a Label Marker for Your New Plants
When dividing any type of perennial, it is always a good idea to place a small post with a label indicating what type of perennial has been planted there. This will help you when it is time to decide which types of plants need to be watered and fertilized.
Step 11 -- Water Your New Coreopsis Divisions
Coreopsis divisions will need a very thorough first watering. Make sure to water them thoroughly, but be careful not to soak the soil too much. Simply water them until the soil fails to adequately soak in the water.