Growing Sunflower

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

(Best months for growing Sunflower in USA - Zone 5a 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 50°F and 86°F. (Show °C/cm)
  • Space plants: 8 - 18 inches apart
  • Harvest in 10-11 weeks.
  • Compatible with (can grow beside): Cucumbers, Melons, Sweetcorn, Squash
  • Avoid growing close to: Potatoes
  • Sunflowers
  • Young plants

Sunflowers need full sun and grow best in fertile, well-drained, moist soil with plenty of mulch. Sunflowers do not like to be transplanted so are best grown direct from seed. The giant or Russian varieties are preferred for seed production

Grow to 1 - 2 metres (4 - 6 ft) so need staking or protection from the wind. Protect seed heads from birds when ripening with nets or paper bags. Chickens love a sunflower head hung for them to peck!

Culinary hints - cooking and eating Sunflower

Use seeds fresh or toasted or press for oil.

Your comments and tips

07 Apr 21, Donna Mourra (USA - Zone 10b climate)
I'm looking for a sunflower plant for Zone 10
08 Apr 21, Anonymous (USA - Zone 10b climate)
Google a sunflower seed selling website and pick one out.
30 Mar 21, (USA - Zone 6b climate)
I live in Cleveland ohio. Wanted to know if I can grow sun flowers here
03 Apr 21, aurora (USA - Zone 10a climate)
Yes! I've visited Cleveland countless times and I've been to a sunflower field there :)
31 Mar 21, Anonymous (USA - Zone 7a climate)
You can work out your climate zone from the blue tab then go to sunflower page.
05 Jul 20, Ann Carson (USA - Zone 8b climate)
What kind of soil best for sunflowers? I planted afew times that begin growing then rodents eat top of sunflowers. Same as radishes too.How do i solve the problems?
12 Jun 20, Vicki Holley (USA - Zone 9a climate)
Looking for a monthly calendar to plant by for zone 9a. Was hoping to plant something in June? (Try here https://www.gardenate.com/?zone=115) Gardenate
16 May 20, Thelma Jenkins (USA - Zone 7b climate)
Our area has a lot of wind, up to 95 in summer. Get some snow in winter. Would like to plant them along our fenceline around our 1acre. Zone7b.AZ. Any advice will be appreciated.
23 Jun 18, Susie (USA - Zone 8b climate)
When is the last month I can successfully plant Mammoth Sunflower seeds in my zone 8b?
25 Jun 18, (USA - Zone 8b climate)
I asked that question in a FB garden group and they said to plant now
Showing 1 - 10 of 12 comments

Yes! I've visited Cleveland countless times and I've been to a sunflower field there :)

- aurora

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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. Gardenate 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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