SproutSmart
SproutSmart™ Intelligent Garden Sowing

Soraya

Sunflower
Zone 13b Save Garden

Planting Schedule

Add Soraya to your garden to build a schedule and get reminders.
Botanical illustration of Soraya
70d to harvest

Warm golden petals unfurl with a radiant, honeyed glow, framing a deep, chocolate-brown center that feels richly textured at every glance. Soraya’s blooms are bold and upright, with sturdy stems that hold their presence from garden to vase, and its dense seed head promises a satisfying, nutty harvest for seed oil and bird-friendly enjoyment. A standout for pollinators, Soraya brings long-lasting summer color and a dramatic focal point—ideal for borders, back rows, and sunny corners where you want beauty that keeps returning.

Crop Dates

Growing note: In frost-free Zone 13b, grow this cool-season crop during the cooler dry season (October–February).
MilestoneDate
Start Indoors—
ClimateFrost-Free Climate
Transplant / Sow OutdoorsOct 1st
Harvest BeginsDec 10th
Harvest EndsFeb 28th

Crop Details

TraitValue
Days to Maturity70
Sun RequirementsFull SunFull sun
Growth HabitUpright
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)55
Min Night Temp (°F)45
Harden Off (days)Not Required

Today's Conditions

Outdoor planting for Soraya in Zone 13b typically begins around 2026-10-01. Wait until soil reaches at least 55°F before transplanting Soraya.

Garden Alerts

In frost-free Zone 13b, grow this cool-season crop during the cooler dry season (October–February).

Recommended Companions

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African Marigold Marigold
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Zinderella Peach Zinnia
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Frequently Asked Questions

How often should I water Helianthus annuus during the main growing phase?
During the main growth (from when plants are established through heavy leaf/flower development), keep soil consistently moderately moist—about 1–2 inches of water per week depending on heat and rainfall. Water deeply when the top 1 inch of soil feels dry, and avoid soggy soil because sunflowers can develop root and crown issues in prolonged wet conditions.
How can I tell when my Helianthus annuus is ready to harvest (about 70 days)?
Harvest when the back of the flower head turns yellow to brown and the outer petals are mostly dry and dropped. Seeds should look plump and firm, and you should be able to loosen a test seed from the head easily. Cut the heads with 6–12 inches of stem and dry them in a warm, airy place for best seed quality.
Botanical illustration of Soraya

Warm golden petals unfurl with a radiant, honeyed glow, framing a deep, chocolate-brown center that feels richly textured at every glance. Soraya’s blooms are bold and upright, with sturdy stems that hold their presence from garden to vase, and its dense seed head promises a satisfying, nutty harvest for seed oil and bird-friendly enjoyment. A standout for pollinators, Soraya brings long-lasting summer color and a dramatic focal point—ideal for borders, back rows, and sunny corners where you want beauty that keeps returning.

Today's Conditions

Outdoor planting for Soraya in Zone 13b typically begins around 2026-10-01. Wait until soil reaches at least 55°F before transplanting Soraya.

Garden Alerts

In frost-free Zone 13b, grow this cool-season crop during the cooler dry season (October–February).

Sowing Tips

Soil Temperature

Direct sow or transplant when soil at planting depth holds 55°F for reliable germination and early growth.

Expert Note

Sow sunflower seed where it will grow and keep evenly moist until established—full sun and room to spread make the biggest difference.