The Story
Plant Bio
Hippeastrum x johnsonii is a perennial bulbous plant featuring large, trumpet-shaped flowers with striking red and white variegation, and broad, strap-like leaves that form a dense tuft.
This hybrid cultivar is prized for its vibrant, long-lasting blooms and its adaptability to indoor cultivation, making it a popular choice for ornamental displays.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Bulb Corm Tuber
Height
18 inches
Width
12 inches
Light
Full Sun, Partial Sun
Zones
7, 8, 9, 10
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
Hybrid
Toxicity
Toxic if ingested
Bloom period
Spring – Late summer
In flower about 5 months of the year
Planting
How to Grow
- Tuck corms 4 inches deep in well-draining soil
- Water regularly during active growth, avoid overwatering
- Place in full sun for best flowering
- Fertilize monthly with a balanced fertilizer during growing season
- Mulch lightly to retain moisture and regulate soil temperature
- Lift and divide clumps every 3–4 years for rejuvenation
Pro Tip
Ensure excellent drainage to prevent bulb rot during winter dormancy
Keep It Thriving
Care Guide
Do
- Water moderately during active growth 🌱
- Apply fertilizer monthly during blooming season
- Plant in full sun for optimal flowering
Don't
- Avoid overwatering in winter ❌
- Don't plant in heavy clay soil
- Refrain from fertilizing after flowering
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Plant |
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
Johnson's Amaryllis questions
What zones can Johnson's Amaryllis grow in?
Johnson's Amaryllis is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Johnson's Amaryllis deer resistant?
Not reliably. Deer may browse Johnson's Amaryllis, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Johnson's Amaryllis bloom?
Johnson's Amaryllis typically blooms in spring through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Johnson's Amaryllis need full sun?
Johnson's Amaryllis does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Johnson's Amaryllis drought tolerant?
Yes — once established (usually after the first full season), Johnson's Amaryllis handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Hippeastrum to compare
Aquaro Amaryllis
Hippeastrum x hybrida 'Aquaro'
Elvas Amaryllis
Hippeastrum x hybrida 'Elvas'
Amaryllis
Hippeastrum x hybrida
Flamboyant Amaryllis
Hippeastrum x flamboyant
Amaryllis Balance
Hippeastrum x hybrida 'Balance'
Amaryllis Red Glory
Hippeastrum x hybrida 'Red Glory'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Johnson's Amaryllis 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.