Hollyhill Serenity Dahlia Seeds - Dahlia, 40 seeds

Quantity: 40 Seeds / pack

Hollyhill Serenity Dahlia is grown from seed into vigorous plants with elegant, fully double blooms on strong stems. Dahlias from seed flower the first year and are superb for borders and cutting gardens, with new flowers opening from midsummer until frost.

Why choose our seeds?

• Elegant, fully double blooms on strong, upright stems
• Flowers the first year from seed — no tubers needed
• Superb cut flower for borders and bouquets

How to grow Hollyhill Serenity Dahlia seeds

Choose Your Planting Method

• Indoors: Start seeds indoors 6-8 weeks before the last frost — strongly recommended for the longest bloom season.
• Outdoors: Sow outdoors 2-4 weeks after the last frost, once the soil is warm.

Prepare Your Materials

• Seed-starting trays or pots (if indoors)
• Well-draining potting mix
• Biodegradable pots if possible — dahlia roots dislike disturbance
• Clear plastic wrap or a humidity dome
• Spray bottle for misting

Sowing the Seeds

• Sow seeds about 1/4 inch deep in moist seed-starting mix
• Keep the medium evenly moist but never soggy

Provide the Right Conditions

• Light: Bright, indirect light after sowing
• Temperature: 65-70°F (18-21°C)
• Humidity: Cover lightly until germination, then ventilate

Germination

• Seeds germinate in 5-20 days
• Grow seedlings on in bright light so they stay stocky

Transplanting

• Transplant after all frost danger has passed — dahlias are frost-sensitive
• Harden off over 7-10 days
• Space plants 18-24 inches apart

Care Tips

• Sun: Full sun for the heaviest bloom
• Water: Water deeply and regularly; avoid waterlogging
• Fertilizer: Feed with a balanced liquid fertilizer every 2-4 weeks during the growing season
• Deadhead spent flowers regularly to keep new blooms coming
• Note: seedlings grown from seed of a named variety may vary somewhat from the parent plant

Bloom Time:

Midsummer until the first frost, about 90 days from sowing.