Red Courtesan Sunflower
Helianthus annuus 'Red Courtesan'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Annual
Height
72 inches
Width
24 inches
Light
Full Sun
Water
Moderate
Humidity
Average
Lifespan
Annual
Native To
North America
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Sunflower cultivar known for its striking red blooms and tall stature. Distinct deep red petals and a robust growth habit make it a standout in gardens.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Select full sun location for optimal growth.
- Tuck seeds 1 inch deep into well-drained soil in early spring.
- Water regularly to keep soil moist but not waterlogged.
- Thin seedlings to 12-18 inches apart once established.
- Support tall varieties with stakes if needed.
- Fertilize monthly with a balanced fertilizer during the growing season.
Pro Tip
Mulch around plants to retain moisture and suppress weeds for healthier growth.
Keep It Thriving
Care Guide
Do
- Water deeply once a week during dry spells 🌱
- Remove dead or damaged leaves to promote healthy growth
- Apply a balanced fertilizer monthly during the growing season
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t plant in shady areas; sun is essential
- Refrain from using high nitrogen fertilizers which can promote weak stems
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Harvest | ||||||||||||
| Plant | ||||||||||||
| Stake |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Red Courtesan Sunflower questions
Is Red Courtesan Sunflower deer resistant?
Not reliably. Deer may browse Red Courtesan Sunflower, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Red Courtesan Sunflower bloom?
Red Courtesan Sunflower typically blooms in late summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Red Courtesan Sunflower need full sun?
Red Courtesan Sunflower does best in full sun (6+ hours).
Is Red Courtesan Sunflower drought tolerant?
Yes — once established (usually after the first full season), Red Courtesan Sunflower handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Helianthus to compare
Swamp Sunflower
Helianthus angustifolius 'First Light'
Maximilian sunflower
Helianthus maximiliani
Narrow-Leaf Sunflower Low Down
Helianthus angustifolius 'Low Down'
Bolander's Sunflower, Serpentine Sunflower
Helianthus bolanderi
Salicifolius Sunflower Willowleaf Sunflower
Helianthus salicifolius
Table Mountain Sunflower
Helianthus annuus 'Table Mountain'
Keep exploring
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Grow Red Courtesan Sunflower with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
