Species
Polianthes tuberosaTuberose1 other cultivar
The Story
Plant Bio
Polianthes tuberosa 'The Pearl' is a tender perennial grown from a tuberous root, known for its intensely fragrant, waxy, pure white double flowers borne on tall spikes in late summer.
This cultivar is prized for its strong fragrance and is suitable for cutting gardens.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Bulb Corm Tuber
Height
24 inches
Width
12 inches
Light
Full Sun
Zones
8, 9, 10
Water
Moderate
Humidity
Moderate to high
Lifespan
Perennial
Native To
Mexico
Toxicity
Bulbs are toxic if ingested
Bloom period
Late summer – Early fall
In flower about 2 months of the year
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck tubers in well-draining soil in early spring.
- Mist cuttings or propagate from tubers in late winter.
- Water regularly but do not overwater; keep soil moist.
- Provide full sun for optimal flowering.
- Fertilize monthly during the growing season for best blooms.
- Mulch around plants to conserve moisture and suppress weeds.
Pro Tip
Ensure well-draining soil to prevent tuber rot and promote healthy growth.
Keep It Thriving
Care Guide
Do
- Water consistently during active growth 🌱
- Apply balanced fertilizer monthly
- Mulch to retain moisture
Don't
- Overwater to avoid tuber rot ❌
- Expose to excessive shade
- Neglect pruning after flowering
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Fertilize | ||||||||||||
| Lift Store | ||||||||||||
| Plant | ||||||||||||
| Stake |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
The Pearl Tuberose questions
What zones can The Pearl Tuberose grow in?
The Pearl Tuberose is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is The Pearl Tuberose deer resistant?
Yes — The Pearl Tuberose is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does The Pearl Tuberose bloom?
The Pearl Tuberose 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 The Pearl Tuberose need full sun?
The Pearl Tuberose does best in full sun (6+ hours).
More Polianthes to compare
Keep exploring
Explore the genus
Hardy in your zone?
Grow The Pearl Tuberose 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.