Rachel de Thame lupine
Lupinus polyphyllus 'Rachel de Thame'
Essentials
At a Glance
Plant Type
Perennial
Height
36 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7
Water
Moderate, drought-tolerant once established
Humidity
Prefers dry to moderate humidity
Lifespan
Perennial
Native To
North America
Toxicity
All parts are toxic if ingested, especially seeds.
The Story
Plant Bio
Lupinus polyphyllus is a perennial flowering plant known for its striking spikes of flower clusters. Cultivar 'Rachel de Thame' is noted for its exceptional purple flowers and robust growth.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into well-draining soil in early spring for best germination.
- Mist cuttings regularly to maintain humidity and encourage root growth.
- Transplant seedlings once they are strong enough, typically after 6 weeks.
- Fertilize lightly during active growth with a balanced fertilizer every 4-6 weeks.
- Prune dead or damaged stems in late winter to promote healthy growth.
- Mulch around plants to retain moisture and suppress weeds.
Pro Tip
Use fresh seeds and provide full sun for vibrant blooms and strong growth.
Keep It Thriving
Care Guide
Do
- Water deeply once a week during dry spells 💧
- Deadhead spent flowers to encourage more blooms 🌸
- Apply a balanced fertilizer in early spring 🌱
- Plant in well-drained soil to prevent root rot
- Provide full sun for optimal flowering
Don't
- Avoid overwatering, which can cause root rot ❌
- Don’t fertilize with high nitrogen fertilizers, as it encourages foliage over flowers
- Do not disturb roots during flowering period
- Avoid planting in heavy clay soil without amendments
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Fertilize | ||||||||||||
| Plant | ||||||||||||
| Propagate | ||||||||||||
| Spring Cleanup |
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
Rachel de Thame lupine questions
What zones can Rachel de Thame lupine grow in?
Rachel de Thame lupine is hardy in USDA Zones 4–7. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Rachel de Thame lupine deer resistant?
Yes — Rachel de Thame lupine is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Rachel de Thame lupine bloom?
Rachel de Thame lupine typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Rachel de Thame lupine need full sun?
Rachel de Thame lupine does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Rachel de Thame lupine drought tolerant?
Yes — once established (usually after the first full season), Rachel de Thame lupine handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Lupinus to compare
Wild Lupine
Lupinus perennis
Red Popsicle Lupine
Lupinus polyphyllus 'Red Popsicle'
Mixed Dwarf Lupine
Lupinus polyphyllus 'Mixed Dwarf'
Garden Lupine
Lupinus polyphyllus 'Towering Inferno'
Magic Lantern lupine
Lupinus polyphyllus 'Magic Lantern'
Gallery Blue Lupine
Lupinus polyphyllus 'Gallery Blue'
Keep exploring
Explore the genus
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Hardy in your zone?
Grow Rachel de Thame lupine 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.
