Learn more about planting dahlias and what they need to produce gorgeous flowers.
As asummer flower, the soil temperature should remain at 55 degrees F. for about a week before planting.
Dahlia tubers planted too early may rot from spring rains before they sprout.
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Of course, that varies across the country and even in your local area.
Fill a 1-gallon container about 1/3 full with moist sterilized potting soil.
Lay the tuber horizontally on the soil and cover it with about two inches of pre-moistened soil.
As the stalk and leaves form, add more potting soil until the container is full.
Adding soil slowly strengthens the stalk and allows better root development.
Place the container near a window with bright light and a temperature above 65 degrees.
Keep the soil moist but not soggy.
Be sure to keep the soil moist and slowly increase the amount of sun exposure.
Weather and Soil Considerations
Dahlia tubers need moisture to grow but will rot in soggy soil.
Be sure the soil is loose and draining well.
you might help it along by adding organic matter like shredded leaves.
After planting, do not water the tubers until the first two leaves appear.
If leaves have already appeared, cover the plant with burlap or a lightweight cotton towel.
Be sure to remove it after sunrise.
Even if the leaves have experienced some damage, the plant will usually survive.
Experimenting with Planting Times
Gardening is both an art and a science.
Every home garden is slightly different.
That knowledge has come from living in this home for nearly 20 years.
I’ve planted dahlias earlier and later than the recommended window.
Some have survived, some have not.
They may not thrive, but you may enjoy an extended blooming season.
