100+ Mammoth Sunflower Seeds | Giant Helianthus annuus for Tall Sunflowers, Pollinators & Privacy Screens

Product Overview

These 100+ Mammoth Sunflower Seeds (Helianthus annuus) offer a giant sunflower variety known for its impressive height and large yellow blooms. Growing up to 12 feet tall, these sunflowers are ideal for creating natural privacy screens, attracting pollinators, and providing cut flowers for bouquets. The seeds are non-GMO and suitable for a wide range of growing zones.

Key Features

• Includes over 100 Mammoth Sunflower seeds
• Giant sunflowers reaching 8 to 12 feet tall
• Bright yellow blooms that attract bees, butterflies, and birds
• Perfect for pollinator gardens and seasonal privacy screens
• Non-GMO seeds, easy to grow in USDA zones 3–10

Growing Information

Plant these seeds in well-drained soil with full sun exposure for best results. They require moderate watering and have a fast growth rate. Germination typically occurs within 7 to 10 days, with blooms appearing between 75 and 90 days after planting. These annual sunflowers bloom from summer to early fall, adding vibrant color and wildlife support to your garden.