SUNFLOWER MAMMOTH RUSSIAN - SEED

SUNFLOWERS MAMMOTH RUSSIAN

Description
Mammoth Russian Sunflower Seeds 6140. If you want to grow the champion sunflower for the fall fair, this heirloom variety is the one to choose! Huge, single yellow blooms ranging from 25-35 cm (10-14″) in diameter are produced on tree trunk like stems that can easily grow to 3 m (9′) or more in height! This is the best variety for feeding the birds as well as for roasting seed for yourself! Taller plants may need staking due to the weight of their mighty seed heads! 

How to Grow
9-10 seed/gram. Easy to grow. In late May, choose a sunny site with well draining soil and sow seed about 6-12 mm (1/4-1/2″) deep and 7.5-10 cm (3-4″) apart. Thin or transplant seedlings to 30-45 cm (12-18″) apart. Seed can be started 2-3 weeks early indoors using plantable peat pots or Jiffy 7’s at 21 C (70 F). Harden off seedlings then transplant to a site in full sun. Keep plants evenly watered and fertilize twice during the season with a granular 15-5-15 or equivalent.

BLOOMING SEASON BEGINS
High Summer

LIFECYCLE
Annual

PROPAGATION
Start Indoors or Sow Direct in Spring

DAYS TO EMERGENCE
5 to 10

LIGHT
Full Sun

GROWTH HABIT
Sturdy

HEIGHT
Tall (2 to 4 m)(66 to 13)

FROST TOLERANCE
Killed by Frost

DEGREE OF DIFFICULTY
Easy

HERITAGE
Heirloom

FAMILY NAME
Asteraceae

LATIN
Helianthus annus

SUGGESTED USES
Pollinator and wildlife plant, Produces best sunflower seed for roasting, Tallest/largest sunflower contest