Delphinium (Pacific Giant)

🛒

Where to Buy

🇺🇸

Ready to grow? Get delphinium from our trusted partner nurseries and seed suppliers.

📦

Fastest shipping

Amazon

Widest selection & fast Prime shipping

Buy Pacific Giant Delphinium

🌱

Organic option

Botanical Interests

Heirloom & certified organic seeds, US-grown

Buy Organic Pacific Giant Delphinium Seeds

Links may earn GrowScore a small commission at no extra cost to you.

📖 About This Plant

Majestic spires of densely packed florets in blue, white, pink, and purple — Pacific Giants are among the tallest and most impressive garden delphiniums, reaching 4-6 feet. The quintessential cottage garden flower. Stunning focal point at the back of any border.

📊 Quick Facts

Sun

Full Sun

Water

Regular

Season

Early Spring (indoor start)

Harvest

100-130 days

📅 When to Plant in Your Area

Enter your zip code on the home page to see personalized planting dates for your area.

🌱 Care Tips

Start indoors 8-10 weeks before last frost. Needs rich soil, consistent moisture, and wind protection. In zones 3-4, treat as an annual. In zones 5+, cut back after first bloom for second flush in fall. Stake tall varieties to prevent wind damage. Stunning as a cut flower — harvest when lower florets begin to open.

🤝 Companion Plants

These plants grow well alongside Delphinium:

Foxglove Hollyhock Lupine Roses

🌿 Related Flower

More flower that grow in similar conditions:

❓ Frequently Asked Questions

What hardiness zones can you grow Delphinium (Pacific Giant) in?

Delphinium (Pacific Giant) grows best in USDA Hardiness Zones 3a–9b. Majestic spires of densely packed florets in blue, white, pink, and purple — Pacific Giants are among the tallest and most impressive garden delphiniums, reaching 4-6 feet. Always check your local zone before planting.

How much sun does Delphinium (Pacific Giant) need?

Delphinium (Pacific Giant) requires Full Sun. Start indoors 8-10 weeks before last frost.

When should I plant Delphinium (Pacific Giant)?

Delphinium (Pacific Giant) is best planted in Early Spring (indoor start). Start indoors 8-10 weeks before last frost. Needs rich soil, consistent moisture, and wind protection.

How long does Delphinium (Pacific Giant) take to harvest?

Delphinium (Pacific Giant) typically reaches harvest in 100-130 days. Water needs are Regular. Grow it alongside Foxglove and Hollyhock for best results.

Where can I buy Delphinium (Pacific Giant) plants or seeds?

You can buy Delphinium (Pacific Giant) from trusted online nurseries and seed suppliers. GrowScore links to the best-rated retailers for your region (US, Canada, and UK). Compare options on this page to find the best price and availability.

🌿