Dahlia flowers are incredibly popular among gardeners and come in a lovely mixture of colors. They bloom from summer until the first frost of fall.
All Dahlias can very easily be grown as half-hardy annuals and flower the first year when grown from flower seeds.
The delightful blooms will attract bees and butterflies to your garden.
USDA Zones: 3 - 10
Height: 16 - 24 inches
Bloom Season: Summer and fall
Bloom Color: Mix
Light Preferences: Full sun
Soil Type: Well-drained, pH 5.5 - 6.5
Average Germ Time: 7 - 21 days
Light Required: No
Depth: Lightly cover with peat moss
Sowing Rate: 2 - 3 seeds per plant
Moisture: Keep moist until germination
Plant Spacing: 14 inches
✅ Sow Dahlia seeds indoors 4 - 6 weeks before the average last frost. Lightly cover Dahlia seeds with soil or peat moss only the thickness of the seed itself.
✅ As soon as seedlings emerge, provide plenty of light on a sunny windowsill or grow seedlings 3-4 inches beneath fluorescent plant lights turned on 16 hours per day, off for 8 hours at night. Raise the lights as the plants grow taller. Incandescent bulbs will not work for this process because they will get too hot. Most plants require a dark period to grow, do not leave lights on for 24 hours.
✅ Thin to one seedling per cell when they have two sets of leaves.
✅ Before planting in the garden, seedling plants need to be “hardened off”. Accustom young plants to outdoor conditions by moving them to a sheltered place outside for a week. Be sure to protect them from wind and hot sun at first.
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I was so excited for these. Especially when my seeds sprouted. I watched, waited, and they grew. I topped them as you are supposed to, for more blooms. The flowers are beautiful.
Just planted them I'm sure they'll be pretty.
Easy to grow and beautiful.
Easy to grow if you know what you are doing. All you need is patience I have many many many flowers blooming!
I used seed starting set but under half grew