White Sunflower Tree
Rojasianthe superba
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
180 inches
Width
120 inches
Light
Full Sun, Partial Sun
Zones
9
Water
Regular moisture
Humidity
High
Lifespan
Perennial shrub
Native To
Mexico and Guatemala
Toxicity
Toxicity not well documented
The Story
Plant Bio
A large, fast-growing, tree-like perennial or shrub with enormous, velvety leaves and large, white, daisy-like flowers with yellow centers. Notable for its impressive size and spectacular floral display in late winter to early spring. Often called the White Sunflower Tree.
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into moist soil in early spring for best germination.
- Mist cuttings regularly to maintain humidity and root in 6 weeks.
- Plant outdoors after the last frost for optimal growth.
- Water consistently to keep soil lightly moist, especially in dry periods.
- Fertilize monthly with a balanced fertilizer during the growing season.
- Prune lightly after flowering to encourage bushy growth.
Pro Tip
Use well-draining soil and avoid overwatering to prevent root rot.
Keep It Thriving
Care Guide
Do
- Water regularly, especially during dry spells 💧
- Prune after flowering to shape and promote new growth 🌱
- Feed with a balanced fertilizer monthly during active growth
Don't
- Avoid overwatering, which can cause root rot ❌
- Don't neglect pruning, as it encourages healthy growth
- Refrain from planting in poorly-drained soil
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Plant | ||||||||||||
| Prune | ||||||||||||
| Stake | ||||||||||||
| Winter Prep |
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
White Sunflower Tree questions
What zones can White Sunflower Tree grow in?
White Sunflower Tree is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is White Sunflower Tree deer resistant?
Not reliably. Deer may browse White Sunflower Tree, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does White Sunflower Tree bloom?
White Sunflower Tree typically blooms in late winter to early spring through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does White Sunflower Tree need full sun?
White Sunflower Tree does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Keep exploring
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Grow White Sunflower Tree 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.
