Soil Temperature for Planting Dahlias

April 14, 2023

Soil Temperature for Planting Dahlias

Are you ready to get your hands dirty and start growing some beautiful blooms? Well, before you jump into planting those dahlia tubers, let's talk about one important factor that can make or break your growing season: soil temperature.

Planting dahila tubers.Soil temperature plays a crucial role in the germination, growth, and overall health of your dahlia plants. Ideally, the optimal temperature range for dahlias is between 60°F (15.5°C) and 70°F (21°C), before you start planting your tubers. If the soil is too cold, your tubers may take forever to sprout or not even germinate at all! Nobody wants that!

Planting dahlia tubers at rooted flowers.For a quick and easy reference, check out this soil temperature map to get an idea where your area is at. I would use this as a general reference, but measuring devices referenced at the end of this post for a more accurate reading.

Soil temperature map of the USBut that's not all, folks. If the soil is too warm, your dahlias may suffer from heat stress, which can make your plants more susceptible to disease and ultimately lead to plant death. Yikes!

So, what can you do to ensure that your soil is just right for your dahlia plants? The key is to monitor the soil temperature and adjust your planting times accordingly. In cooler regions, it's best to wait until the soil has warmed up sufficiently before planting. In warmer regions, it's a good idea to get those tubers in the ground earlier in the season to avoid heat stress.

But don't worry, it's not all doom and gloom! With a little bit of attention and care, you can grow gorgeous dahlia blooms all season long. If you need help monitoring soil temperature, try this measuring device: 4-in-1 Soil Probe

Dahlias at ROOTED flowers.

Keep an eye on that soil temperature and get ready to watch your dahlia dreams come to life. Happy planting, friends!

Rooted Flowers only lists companies and products that we love, use, and recommend. All opinions expressed here are our own and Rooted Flowers does not offer sponsored content or accept money for editorial reviews. If you buy something using the retail links in this post, Rooted Flowers may receive a small commission. Thank you for your support!

If your comment doesn’t show up right away, don't fret! We have a spam filter that requires we approve most comments before they are published.

Unable to post at this time.


Also in Farm Journal

Reflections on Our 100% Local Valentine’s Flowers in New England
Reflections on Our 100% Local Valentine’s Flowers in New England

February 18, 2025

Leading up to Valentine’s, the farm buzzed with a joyful energy as we harvested and arranged armfuls of blooms brimming with care. While it may look like work to others, to us it’s pure delight—each bouquet is a chance to share a little love from our fields to someone’s home.

View full article →

Blooming Beauty in the Coldest Months
Blooming Beauty in the Coldest Months

February 08, 2025

We planted them in hydroponic crates—an investment we made years ago to reduce waste and long-term costs. These crates, built to last a lifetime, have allowed us to eliminate the use of soil, peat moss, and plastic bag transport.

View full article →

Building Connection through Flowers
Building Connection through Flowers

September 05, 2024

As more people asked me to provide flowers for their events, I began to see the deeper value in what we were doing. Why rely on far away flowers when we have such beauty growing right here? Why not embrace what’s in season and let the natural world guide us? I started designing arrangements that told a story, celebrating the moment and the connection to the earth.

View full article →