Q&A: Pruning Coreopsis and Marguerite Daisies

Tips for taking care of these lovely blooms in the winter.
Golden Marguerite In A Cottage Garden

Golden Marguerite In A Cottage Garden

Golden marguerite adds a burst of color to a cottage garden.

Photo by: DK - How to Grow Practically Everything ©2010 Dorling Kindersley Limited

DK - How to Grow Practically Everything, 2010 Dorling Kindersley Limited

Q: Last year I moved from the Midwest to San Jose, Calif., where winters are mild. My coreopsis and marguerite daisies don't freeze back or die down in the winter, and they are getting way too big. When and how far do they need to be cut back to control the size of the plants next summer? I'm used to a hard winter climate and have never had perennials that grow right through winter!

A: Marguerite daisies are treated as annuals in other gardening regions but become woody perennials in southern California, as you've discovered! It's best to pinch and prune the plants while they're young to keep them in shape. Since yours are overgrown, it may take a full growing season to gradually reduce the size of the plants without causing undo stress. Wait until early spring, just as new growth begins, and remove about one-third of the length of the stems. This will force new growth from below the cuts. During the growing season remove spent blooms and take some of the stems too. This will encourage bushy growth and will keep the height and width of the plant under control. You can reduce the size of your coreopsis in a similar manner. To keep the plants looking attractive, cut back the stems after the flowers are spent and new flowering stems will be produced lower down on the plant. Enjoy your new climate!

— National Gardening Association

Keep Reading

Next Up

Garden Plants and Flowers

Learn how to discover which plants underscore and help define a specific garden design style.

When to Prune Climbing Plants

Knowing when to prune climbing plants like clematis ensures proper growth and flowering. 

Pruning and Training Climbing Plants

Knowing when and how to prune climbing plants is essential to remove dead stems and promote healthy growth.

Deadheading and Pruning Container Plants

To make sure that flowering plants continue to bloom for a long time, and to keep shrubs and climbers healthy, prolific and in good shape, you need two techniques: deadheading and pruning. Both are quick, simple and highly effective.

Q&A: Wilting Tomatoes

Here is a tip on how to take care of your wilting tomatoes.

Q&A: Blueberries for the Southwest

Here's a tip on how to grow your own blueberries.

How to Plant in Gardening Containers

To ensure that plants in gardening containers grow and perform as well as possible, you need to plant them properly.

When to Plant Garden Mums

Want your garden mums to survive winter? Learn tips for planting fall garden mums to help them return next spring.

1,000+ Photos

Browse beautiful photos of our favorite outdoor spaces: decks, patios, porches and more.

Follow Us Everywhere

Join the party! Don't miss HGTV in your favorite social media feeds.