Dill Seeds - Mammoth (Anethum graveolens)

Mammoth Dill (Anethum graveolens) is a tall, vigorous, and highly aromatic variety known for its large umbrella-shaped flower heads and lush feathery foliage. This fast-growing dill is ideal for outdoor gardens, raised beds, and wide-row planting due to its height and high productivity.

This Non-GMO variety grows best in full sun and well-drained soil, producing abundant leaves followed by oversized blooms. Mammoth Dill is perfect for gardeners who want a robust plant with strong growth, continuous leafy production, and large flowering heads suitable for long-season harvesting.

Features

• Tall and vigorous dill variety with strong aroma
• Produces large feathery leaves and oversized flower umbels
• Non-GMO, natural and untreated seed variety
• Excellent for wide-row planting and outdoor beds
• Fast growing with continuous leafy harvest
• Tolerant of warm weather and full sunlight

Specifications

• Seed Type: Natural, untreated, Non-GMO annual
• USDA Zones: Suitable for Zones 3–10
• Sun Requirement: Full sun (6–8 hours daily)
• Best Growing Season: Spring through early Summer
• Germination Time: 7–21 days
• Soil Requirement: Loose, well-drained, moderately fertile soil
• Plant Height: Tall growth approx. 36–60 inches
• Harvest Time: 40–70 days after sowing
• Growth Habit: Large leafy annual with giant flower heads
• Ideal For: Wide-row planting, raised beds, outdoor gardens, and containers

Planting Guide

• Direct sow outdoors; Mammoth Dill prefers not to be transplanted
• Sow seeds 1/4 inch deep and lightly cover with soil
• Keep soil gently moist until germination occurs
• Provide full sun for strong foliage and flowering
• Thin seedlings to 12–18 inches apart for tall growth space
• Reduce heavy watering once plants are established to prevent weak stems
• Begin harvesting leaves when plants reach 8–12 inches in height
• Let flower heads mature fully if seed collection is desired