How to Grow Giant Sequoia Seeds (Sequoiadendron giganteum)

The Giant Sequoia (Sequoiadendron giganteum), also known as the Sierra Redwood, is one of the largest and longest-lived trees on Earth. Native to the western slopes of California's Sierra Nevada, these legendary conifers can grow over 300 feet tall and live for thousands of years. With thick fire-resistant bark, fast early growth, and iconic stature, Giant Sequoia is a prized collector's tree and a remarkable long-term landscape investment.

About Giant Sequoia

• Botanical Name: Sequoiadendron giganteum
• Common Names: Giant Sequoia, Sierra Redwood, Big Tree
• Origin: Sierra Nevada, California
• USDA Hardiness Zones: 6-9
• Mature Height: 100-300+ feet
• Growth Rate: Fast in early years
• Type: Evergreen conifer
• Bark: Thick, fibrous, fire-resistant

Germination Step-by-Step

Step 1 – Soak Seeds 24 Hours

Soak seeds in filtered water for 24 hours before stratification.

Step 2 – Cold Stratify 60 Days

Place seeds in a zip-lock bag with moist vermiculite and refrigerate for 60 days. Check periodically to ensure they stay moist but never wet.

Step 3 – Sow 1/8 Inch Deep

After stratification, plant seeds no more than 1/8 inch deep in well-draining soil. Keep temperatures at 70-75°F.

Step 4 – Germination in 2-4 Weeks

Expect germination within 2-4 weeks. Keep seedlings out of direct sunlight for at least 60 days after germination.

Post-Germination Care

• Light: Bright indirect light for first 60 days, then gradually full sun
• Water: Moderate; avoid waterlogging — good drainage is essential
• Soil: Deep, well-draining sandy loam preferred
• Fertilizer: Balanced fertilizer during active growth
• Space: Needs significant long-term space — plan accordingly

Why Grow Giant Sequoia?

• One of the largest trees on Earth
• Extremely long-lived — a true legacy tree
• Thick fire-resistant bark
• Fast early growth phase
• Iconic landscape and collector specimen
• Cold hardy and adaptable when young

Shop Giant Sequoia Seeds