Enhance your garden with the dramatic beauty of Petunia Grandiflora Purple Flower Seeds. Known for their large flower size, rich purple color, and long-lasting blooms, Grandiflora Petunias are perfect for adding eye-catching color to borders, pots, hanging baskets, and landscape designs.

These seeds produce vigorous plants with lush growth and exceptional flowering performance. Gardeners love Grandiflora Petunias for their excellent heat tolerance, ease of growth, and reliability throughout the season.

Key Features

• Produces bold, deep purple blooms

• Large Grandiflora flower heads for dramatic color

• High-quality, non-GMO seeds

• Long blooming season from spring to fall

• Suitable for containers, borders, pots, and hanging baskets

• Easy to grow with high germination potential

• Excellent for ornamental gardening and landscaping

Specifications

Botanical Name: Petunia × hybrida
Variety: Grandiflora Purple
Seed Type: High-Quality, Non-GMO
Plant Type: Annual
Flower Color: Deep Purple
Bloom Season: Spring to Early Fall
USDA Hardiness Zones: 2–11 (grown as annual everywhere)
Sun Exposure: Full Sun to Partial Shade
Soil Type: Well-drained, fertile soil
Plant Height: 12–15 inches
Spread: 12–20 inches
Spacing: 10–15 inches
Watering Needs: Moderate; water regularly but avoid waterlogging
Germination Time: 7–14 days
Germination Temperature: 70–75°F
Growth Habit: Mounded, spreading
Uses: Garden beds, borders, containers, hanging baskets, landscaping
Special Notes: Removing spent blooms encourages more flowering.

Planting Guide

1. Sowing Seeds Indoors

• Start seeds indoors 8–10 weeks before the last frost date.

• Use a light seed-starting mix for better germination.

• Do not cover seeds deeply—Petunia seeds need light to germinate.

• Lightly press seeds into the soil surface.

2. Temperature & Light

• Maintain soil temperature between 70–75°F.

• Provide bright light or use grow lights for healthy seedlings.

3. Transplanting Outdoors

• Harden off seedlings for 7 days before transplanting.

• Plant outdoors only after the danger of frost has passed.

4. Water & Care

• Water consistently to maintain moist but not soggy soil.

• Apply a balanced fertilizer every 2–3 weeks for abundant blooms.

• Deadhead faded flowers to encourage continuous blooming.

5. Blooming Period

• Expect vibrant purple blooms from late spring through early fall, with continuous flowering in warm temperatures.

Benefits

• Provides bold, striking purple color in the garden

• Ideal for decorative landscaping and colorful displays

• High flower production throughout the season

• Perfect for gardeners of all experience levels

• Versatile for pots, containers, beds, and hanging baskets