Tips for Growing Dahlias

Tips for Growing Dahlias

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Dahlias are such beautiful and full flowers, and are pretty easy to grow! You can enjoy months of big and full bright colored blossoms! They really are a great way to dress up your landscaping and impressing guests as they arrive! If you are looking for some tips for growing dahlias, than you have come to the right place. I have compiled a list for ultimate growing tips for dahlias! 

Dahlias are somewhat like hostas, peonies,  and roses, you can plant just one! Once you have one, you will be amazed at the beauty and want to fill up your beds with more! 

Ultimate Tips for Growing Dahlias 

Planting Time

You want to make sure that the soil is warm around 60 degrees. Dahlias are warmer weather fans, and will not grow with cold soil, as they are sensitive. If you live in a cooler place, you can plant them early, and once it warms up go and transplant them outdoors! 

Fertilizer and Soil 

Make sure you have well-drained soil, that is optimal growth conditions. Also aim for a pH of 6.5-7.0. You can use a liquid fertilizer once a month throughout the growing season, just watch nitrogen level in fertilizer. 

How to Plant

When you go to plant, try to plant them at least 15″ apart from center to center. If you have a standard type, shoot for 18″. If you dig down to 12-14″ you can add in some compost to help provide nutrients to your flowers. Then plant the tubers with the sprouts upright. You want the tuber to be 3-4″ below the soil, and then fill the hole in with soil. 


Staking is something that can be overlooked, but it is beneficial! Dahlias have somewhat of brittle steps, and if it becomes to windy or a heavy rain, it can cause damage and breakage to the plant. If you add 1-2 stakes beside the tubers, they will twist around them, providing support to the stems! 


You can prune your dahlias, by pinching out the center shoot above the third set of leaves. This will help your plants become bushier. 


They love to consistent watering. If you can do a drip irrigation, this will help provide the consistent watering. If you can, make sure you go out and water regularly. levels.  Aim to water a few times a week, just make sure the top inch of the soil dries out between. 

Disease Control 

Don’t use leaves or straw for a mulch, this can really draw in disease and insects. Make sure that if any leaves or debris are around the plant that you clean it up. Slugs and snails can be the two that are drawn to the flowers the most. By keeping around the plants clean can help, and you can place a few pennies around them to help detour slugs. 

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1 thought on “Tips for Growing Dahlias

    • Hello Dannelle, wow! Dahlias are such a beautiful flower. I was searching the tips for growing and taking care. You have shared an awesome tips. This post is really thankful. Keep sharing.

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