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Flower Annual Beginner Level πŸͺ΄ Container Friendly

Sunflowers

Sunflowers is a Annual Flower that thrives in USDA Zones 2–11. It requires full_sun and takes around 70–100 days to mature.

SunlightFull Sun
Water NeedMedium
Days to Maturity🌱 70–100 days
USDA ZonesπŸ—ΊοΈ 2–11
Starts FromπŸ“¦ Seed
Transplant Indoor Seed Start Direct Sow

πŸ“… US Planting Timing

πŸͺ΄
Start Indoors
3 weeks
before last frost
🌾
Direct Sow
+7 days after frost
πŸ”„
Transplant
+14 days after frost

🌑️ Temps & Growth (Fahrenheit)

πŸͺ± Soil Temp
Minimum50Β°F
Optimal70–85Β°F
πŸ’¨ Air Temp
Minimum40Β°F
Optimal70–90Β°F
🌱 Germination Temp
Minimum60Β°F
Optimal70–85Β°F
❄️ Frost Toleranceβ–² Low
πŸ”₯ Heat Toleranceβ–²β–²β–² High
GDD Base Temp 50Β°F Growth stops below this temp
GDD Required 1300 Heat units needed to mature

πŸ“ Garden Spacing & Soil

Spacing (Inches)

Plant Depth1" (in)
Plant Spacing12" (in)
Row Spacing24" (in)
Square Foot (SFG)1 plants per sq. ft.

Soil & Water

pH Range6.00 – 7.50
DrainageWell Drained
Water/Week1 – 1.5" inches
Soil TypesLoamSandySiltyClay

πŸͺ΄ Container Gardening

This plant is highly suitable for growing in pots, grow bags, or urban balconies.

Min. Depth 12" (in)
Min. Volume 5 Gal

🌎 US State Planting Forecast

Where can you plant Sunflowers right now? Based on current weather, soil temperature & frost calendar for each state.

37 ⚠️ Risk
13 🚫 Not yet
AK ⏳ Oct 16, 04:00 AKDT AL ⚠️ Oct 16, 07:00 CDT AR ⚠️ Oct 16, 07:00 CDT AZ ⚠️ Oct 16, 05:00 MST CA ⚠️ Oct 16, 05:00 PDT CO ⏳ Oct 16, 06:00 MDT CT ⚠️ Oct 16, 08:00 EDT DE ⚠️ Oct 16, 08:00 EDT FL ⚠️ Oct 16, 08:00 EDT GA ⚠️ Oct 16, 08:00 EDT HI ⚠️ Oct 16, 02:00 HST IA ⚠️ Oct 16, 07:00 CDT ID ⏳ Oct 16, 06:00 MDT IL ⚠️ Oct 16, 07:00 CDT IN ⚠️ Oct 16, 08:00 EDT KS ⚠️ Oct 16, 07:00 CDT KY ⚠️ Oct 16, 08:00 EDT LA ⚠️ Oct 16, 07:00 CDT MA ⚠️ Oct 16, 08:00 EDT MD ⚠️ Oct 16, 08:00 EDT ME ⏳ Oct 16, 08:00 EDT MI ⚠️ Oct 16, 08:00 EDT MN ⏳ Oct 16, 07:00 CDT MO ⚠️ Oct 16, 07:00 CDT MS ⚠️ Oct 16, 07:00 CDT MT ⏳ Oct 16, 06:00 MDT NC ⚠️ Oct 16, 08:00 EDT ND ⏳ Oct 16, 07:00 CDT NE ⏳ Oct 16, 07:00 CDT NH ⚠️ Oct 16, 08:00 EDT NJ ⚠️ Oct 16, 08:00 EDT NM ⏳ Oct 16, 06:00 MDT NV ⏳ Oct 16, 05:00 PDT NY ⚠️ Oct 16, 08:00 EDT OH ⚠️ Oct 16, 08:00 EDT OK ⚠️ Oct 16, 07:00 CDT OR ⏳ Oct 16, 05:00 PDT PA ⚠️ Oct 16, 08:00 EDT RI ⚠️ Oct 16, 08:00 EDT SC ⚠️ Oct 16, 08:00 EDT SD ⚠️ Oct 16, 07:00 CDT TN ⚠️ Oct 16, 07:00 CDT TX ⚠️ Oct 16, 07:00 CDT UT ⏳ Oct 16, 06:00 MDT VA ⚠️ Oct 16, 08:00 EDT VT ⚠️ Oct 16, 08:00 EDT WA ⚠️ Oct 16, 05:00 PDT WI ⚠️ Oct 16, 07:00 CDT WV ⚠️ Oct 16, 08:00 EDT WY ⏳ Oct 16, 06:00 MDT
Ready to plant Plant with caution Not recommended

πŸ“… Personal Planting Timeline

Your personalized schedule based on frost dates and current soil temperature. Showing default Zone 7 β€” set your location for exact dates.

❄️ Last frost: Mar 31 πŸ‚ First fall frost: Nov 26 βœ… 240 frost-free days
🏠
Start seeds indoors Mar 10
220 days ago
🌱
Direct sow outdoors Apr 7
192 days ago
πŸͺ΄
Transplant seedlings outdoors Apr 14
185 days ago
πŸ₯•
Earliest harvest Jun 16 ~
122 days ago
🏁
Latest harvest Jul 16 ~
92 days ago

πŸ’§ Watering Forecast

Need: 1.25" / week  Β·  based on forecast rain & evaporation

πŸ“ Set location for forecast
🌱

Enter your city or ZIP above to see a personalized 5-day watering schedule.

🌑️ Plant Stress Forecast

5-day temperature stress outlook for this plant

πŸ“ Set location for forecast
🌿

Enter your city or ZIP above to see if your plant will experience heat or cold stress this week.

🌑️ Growth Prediction

GDD-based harvest forecast Β· 1300 GDD needed

πŸ“ Set location & planting date
🌾

Enter your location and when you planted to get a personalized harvest prediction based on real temperature data.

🀝 Companion Planting

βœ… Plant Near

  • Corn
  • Cucumber
  • Lettuce
  • Melons
  • Squash

❌ Keep Away From

  • Pole Beans
  • Potatoes