How To Prepare Your Soil For Planting Dahlias
Some plants can handle any growing condition, but Dahlias really need the right conditions to produce the outstanding blooms they’re known for. With a well-prepared soil bed, your Dahlias will create beautiful growth very quickly. Follow these steps for success!
- Dahlias prefer rich and well-drained soil. Loose, nutrient-rich soil will feed tubers and encourage strong root growth. Soil must be well-draining, because Dahlias like plenty of water, but soggy soil will cause tubers to rot. Dahlias are great for sandy, loamy, or acidic soil.
- If you’re starting with clay soil, dry soil, or compacted soil, it will be important to make sure that you properly prepare your planting area in order to see growth and blooms. If you have challenging soil, or if you live in an area with heavy rainfall, you may want to consider growing Dahlias in berms or raised beds to create optimal conditions.
- Enrich your soil with compost work in a good organic fertilizer before planting. Look for a fertilizer that’s low in nitrogen, to encourage blooms and not too much leafy growth. Organic material will feed your Dahlias, and help the soil to retain moisture as needed for the plants.
- Dig at least 10 inches to 1 foot deep (or create a raised bed 10 inches to 1 foot deep) to loosen the soil and give tubers enough space to grow and to improve soil drainage.
When To Plant Dahlias
Generally, we ship your Dahlia tubers at the right time to plant! Tender Dahlia tubers are generally planted outside around the same time you plant tomatoes.
If that’s not until late May or early June where you live, you can start dahlias indoors, 4-6 weeks before your last frost date. In containers, lay tubers on their sides with the stems up and cover with 2 inches of soil. Wait until you see new growth breaking through to water. Then, they can be transplanted outside when it’s warm enough.