Sunflower- Mammoth

Helianthus annuus

Standard seed packet, 30 seeds

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Sunflower- Mammoth

Helianthus annuus

  • 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
Germination: 7-14 days @ 21-30°C
Hardiness / Life Cycle: Hardy Annual
Plant Spacing: 30cm
Plant Height: 300cm
Position: Part or full sun, moist well drained soil
Days to Maturity/Flowering: 85 days
*Notes: 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
Shipping Weight 0.0032kg
Botanical name: Helianthus annuus
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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