Sunflower- Mammoth

Helianthus annus

Standard seed packet, 30 seeds

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Sunflower- Mammoth

Helianthus annus


  • Tall plants to 3m
  • Large yellow flowers

Annual. Tall plants that grow up to 3m in height with large yellow flowers. Good variety for producing edible seeds. Attracts birds, bees and butterflies to the garden.  Fast growing.  A fun variety to grow with kids. 

How to sow and grow:

Method: Sow direct or raise seedlings
Sowing Depth: 10mm
When: Spring and early summer
Position: Part or full sun, moist well drained soil
Plant Spacing: 30cm
Hardiness: Hardy
Plant Height: 300cm
Days to Maturity/flowering: 85 days
Care: Keep sheltered from wind. Cut spent flowers to prolong flowering. Does best when watered deeply at less regular intervals.

(Product number: X-038)
Seeds per gram: 13 seeds

SKU X-038
Botanical name: Helianthus annus
Packet type: Standard seed packet
Packet quantity: 30 seeds
Seeds per gram: 13
Photo credits:

Photo by Bill Smith / CC BY 2.0

Photo by evan p. cordes / CC BY 2.0

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