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Growing Sunflower

Jan F M A M J J A S O N Dec
                  P P P

(Best months for growing Sunflower in New Zealand - cool/mountain regions)

P = Sow seed

  • Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 10°C and 30°C. (Show °F/in)
  • Space plants: 20 - 30 cm apart
  • Harvest in 10-11 weeks.
  • Compatible with (can grow beside): Cucumbers, Melons, Sweetcorn, Squash
  • Avoid growing close to: Potatoes
  • Young plants
    Young plants

Large showy flowers, available in a variety of colours Giant or Russian varieties are best for seed production

Sunflowers do not like to be transplanted.

Grow to 1 - 2 metres (4 - 6 ft) so need staking or protection from the wind. Protect the seed heads from birds when ripening.

Culinary hints - cooking and eating Sunflower

Use seeds fresh or toasted

Your comments and tips

02 Mar 17, Bella (New Zealand - temperate climate)
Hi Yesterday I scraped out a handful of sunflower seeds from a plant in a friends garden. I have them in a brown paper bag. Can I plant them today or do I need dry them out before I plant them. Thanks
03 Mar 17, John (Australia - temperate climate)
You would probably be better to buy a packet of seed or get a small handful from a produce store (they would likely give it to you). The seed you have may not be sufficiently dry and is likelt to rot. It is getting late to plant sunflowers unless you are in the warmer north of the country. Save your seed for next season or swap it for something else. Trust this helps.

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. GardenGrow is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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