Frost Blue Petunia Seeds - Petunia, 20 seeds

Quantity: 20 Seeds / pack

Frost Blue petunia (Petunia × hybrida) is a spreading-type petunia that produces cool-blue trumpet blooms over a wide mound of foliage. It is made for hanging baskets, window boxes, and cascading over container edges. With regular care it flowers nonstop from planting until frost.

Why choose our seeds?

• Cool-blue trumpet flowers on a spreading habit
• Cascades beautifully from baskets and containers
• Long bloom season from early summer to frost

How to grow Frost Blue Petunia seeds

Choose Your Planting Method

• Indoors: Start indoors 8-10 weeks before the last frost — petunias need a long head start.
• Outdoors: Direct sowing outdoors is not recommended; transplant sturdy seedlings after the last frost.

Prepare Your Materials

• Seed-starting trays or pots (if indoors)
• Well-draining potting mix
• Plastic wrap or a humidity dome to hold moisture
• Spray bottle for misting

Sowing the Seeds

• Surface-sow on moist mix — petunia seeds need light to germinate, so do not cover them.
• Mist gently; the tiny seeds wash away easily.

Provide the Right Conditions

• Light: Bright light from sowing on; light is required for germination.
• Temperature: 72-77°F (22-25°C) until germination; then 60-68°F (16-20°C).

Germination

• Germination takes 6-10 days.
• Grow seedlings under bright light to keep them compact and stocky.

Transplanting

• Transplant after the last frost into beds or containers.
• Harden off gradually.
• Space 12-18 inches apart; give spreading types room to trail.

Care Tips

• Sun: Full sun for the most flowers.
• Water: Water when the top inch of soil dries; containers may need daily watering in summer.
• Fertilizer: Feed every 1-2 weeks with a balanced liquid fertilizer — petunias are hungry plants.
• Deadhead spent blooms or shear lightly to encourage fresh waves of flowers.

Bloom Time:

Early summer to frost.