Dahlias are beloved for their vibrant blooms and wide range of colors, making them a popular choice for garden enthusiasts seeking to infuse their outdoor spaces with a burst of color. While dahlias are typically cultivated from tubers, starting them from seeds can offer a more budget-friendly and gratifying experience for gardeners. In this article, we will delve into the process of starting dahlias from seeds, ideal for beginners eager to explore the art of nurturing these exquisite flowers and creating their very own unique varieties.
Key Considerations for Seed Starting:
– Seed-borne diseases and viruses could be passed on through the seed’s DNA.
– The offspring may not necessarily resemble the parent plant, even if both parents are identified.
– Starting seeds indoors might be necessary based on your specific growing season.
Selecting Your Seeds:
Commence your journey by carefully choosing high-quality dahlia seeds from a reputable supplier or garden center. Opt for fresh and viable seeds to maximize the likelihood of successful germination.
Method 1: Paper Towel Technique
Creating the Ideal Growing Environment:
Begin by moistening paper towels and placing the seeds within, ensuring both sides are covered. The paper towels should be damp but not dripping. Place them in a sealed plastic bag or on a tray covered with plastic wrap in a warm spot, such as atop the fridge or on a controlled heating mat. Dahlias require consistent warmth for germination, with temperatures ideally maintained at around 70-75°F (21-24°C) throughout the germination process. Regularly check and spritz the paper towels to keep them damp.
Germination and Care:
Dahlia seeds typically sprout within 7-14 days. Once the seedlings emerge, transfer them carefully to the soil. Avoid damaging the delicate seedlings during the transplantation process.
Planting the Seeds:
Fill small seed trays or pots with a seed starting mix, creating small indentations in the center of each cell. Place the sprouted dahlia seed with the sprout facing downwards in each indentation and lightly cover them with more seed starting mix. Water gently to maintain moist soil, taking care not to overwater. Tweezers can be helpful for precise handling.
Method 2: Traditional Approach
Preparing the Seed Starting Mix:
Prepare a lightweight, well-draining, and nutrient-rich seed starting mix by blending peat moss, perlite, and vermiculite, or opt for a commercial mix.
Planting the Seeds:
Fill small seed trays or pots with a seed starting mix, creating small indentations in the center of each cell. Place the seed and lightly cover them with more seed starting mix. Water gently to maintain moist soil, taking care not to overwater. Watch for germination within 7-14 days.
Creating the Ideal Growing Environment:
Place the seed trays in a warm, well-lit location, such as a sunny windowsill or under grow lights. Maintain a consistent temperature of 70-75°F (21-24°C) and consider using a humidity dome to regulate moisture and temperature for the young seedlings.
Care:
Once the seedlings appear, provide ample light and ensure the soil remains consistently moist. Transplant into larger containers or directly into the garden as the seedlings mature.
Transplanting:
Once the seedlings develop true leaves and exhibit robust growth, transplant them into larger containers if necessary (4in by 4in is what we use) or into the garden following the last frost of the season. Choose a sunny, well-drained spot and space the dahlias appropriately based on their mature size.
Maintenance and Care:
Ensure the dahlias receive sufficient water, keeping the soil consistently moist but not waterlogged. Provide support for taller varieties to prevent flopping and fertilize periodically with a low nitrogen fertilizer to promote healthy growth and abundant blooms.
In regions without freezing temperatures, seeds can be sown directly in the garden.
Embark on the rewarding and cost-effective journey of growing dahlias from seeds by following these straightforward steps and offering the necessary care and support to your seedlings.
