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Connecticut Garden Journal
Connecticut Garden Journal is a weekly program hosted by horticulturalist Charlie Nardozzi. Each week, Charlie focuses on a topic relevant to both new and experienced gardeners, including pruning lilac bushes, growing blight-free tomatoes, groundcovers, sunflowers, bulbs, pests, and more.

Connecticut Garden Journal: How To Care For Dahlias

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Our dahlias have been magnificent this year. The plants are growing large and flowering up a storm. Here are a few late season dahlia tips to keep them looking great.

For large, 5 to 6 feet tall varieties, you'll need a staking or support system. If you didn't stake them when they were young, you still can wrap chicken wire around the clump supported by stakes. This will keep the plants and flowers vertical.

To get bigger flowers, pinch off some of the smaller flower buds. Of course, if size isn't your thing, pinch the first flower to stimulate more side flower buds and make a bushier plant.

Dahlias make great cut flowers. Cut the flower stem back to a side branch. Indoors, make a horizontal cut on the stem while it sits in hot, but not boiling, water and leave it for 1 hour. This will help with water uptake and retention. Your flower should last up to a week in the vase.

Dahlias are subtropical plants and don't like the cold. After a hard frost your dahlias will turn into a blackened mess. Once killed, cut back the foliage, dig up the clump, knock off the excess soil, let dry, then store it in a box, perforated bag or bucket in a cool, dark place. Label the varieties you're storing. Cover the roots with slightly moistened peat moss or sawdust. Check periodically in winter for rotting, from too much moisture, or shriveling, from drying out. Adjust the moisture level. In spring, divide your prized dahlia tubers to create more plants for a bigger show next year.

Charlie Nardozzi is a regional Emmy® Award winning garden writer, speaker, radio, and television personality. He has worked for more than 30 years bringing expert information to home gardeners.

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SOMOS CONNECTICUT is an initiative from Connecticut Public, the state’s local NPR and PBS station, to elevate Latino stories and expand programming that uplifts and informs our Latino communities. Visit CTPublic.org/latino for more stories and resources. For updates, sign up for the SOMOS CONNECTICUT newsletter at ctpublic.org/newsletters.

SOMOS CONNECTICUT es una iniciativa de Connecticut Public, la emisora local de NPR y PBS del estado, que busca elevar nuestras historias latinas y expandir programación que alza y informa nuestras comunidades latinas locales. Visita CTPublic.org/latino para más reportajes y recursos. Para noticias, suscríbase a nuestro boletín informativo en ctpublic.org/newsletters.

The independent journalism and non-commercial programming you rely on every day is in danger.

If you’re reading this, you believe in trusted journalism and in learning without paywalls. You value access to educational content kids love and enriching cultural programming.

Now all of that is at risk.

Federal funding for public media is under threat and if it goes, the impact to our communities will be devastating.

Together, we can defend it. It’s time to protect what matters.

Your voice has protected public media before. Now, it’s needed again. Learn how you can protect the news and programming you depend on.

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