- Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
- Mature Height 3 - 3.5 Feet
- Mature Spread 2.5 - 3 Feet
- Growing Zones 6 - 9
- Use As A Thriller In Containers
Summer Heat Peruvian Lily (Alstroemeria hybrid 'Tessumheat') brings a fiery impact to gardens with big, bright red flowers set off by a bold yellow throat. Tall stems rise 36–42 inches, showing off clusters of brilliant blooms, while lush green foliage anchors the colorful display. Expect these impressive flowers to shine from midsummer well into the fall, delivering color when many plants begin to fade. These flowers bring drama to mixed borders and container plantings with little effort.
This selection emerges a bit later in spring than other perennials, then quickly grows to its full height. Originally hailing from the Andes of South America, Peruvian Lilies adapt well to sunny, moderately moist sites in your yard. Their upright habit and tall, narrow leaves create a striking vertical accent in the landscape, especially planted in groups. Butterflies, bees, and hummingbirds flock to these bold, nectar-rich blooms, while deer show little interest, making them a low-maintenance option. The bright red petals with a distinct yellow center also provide excellent, long-lasting cut flowers for fresh arrangements.
Summer Heat Peruvian Lily Care
Give Summer Heat a sunny location with 6 or more hours of light per day, though partial shade in warmer climates helps protect plants during scorching afternoons. Plant in well-drained, fertile soil, keeping it evenly moist—water regularly in dry spells to support continuous flowering. Applying a balanced fertilizer once or twice a year helps sustain robust blooms. In zones 6–9, you can leave this perennial in the ground over winter, though adding mulch around the root zone can provide extra protection in colder areas. If grown in containers, select a well-draining potting mix and monitor water levels to keep plants healthy and blooming.
Minimal pruning is required beyond removing spent flowers and any damaged foliage to encourage more blooms. Cutting flower stems at the base for bouquets triggers fresh growth, so don’t hesitate to gather them for indoor arrangements. For winter care, trim old stems back once the plant enters dormancy, especially if your region has consistent freezing temperatures. If grown in containers, you may move them to a sheltered location or lightly insulate the pot in very cold climates.
Summer Heat Peruvian Lily Spacing
Space plants 30 to 36 inches apart when using in a mass planting, providing plenty of room for the lush foliage and upright stems. If you plan to plant a single specimen in a container, use a pot around 12 to 16 inches in diameter and at least a foot deep. This ensures adequate root space for Summer Heat to deliver its dramatic, long-lasting show of bright red blooms.
Summer Heat Peruvian Lily Information
USDA Hardiness Zones: 6 - 9 |
Plant Type: |
Light Exposure: Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight) |
Mature Height: 3 - 3.5 Feet |
Mature Spread: 2.5 - 3 Feet |
Spacing: 2.5 - 3 Feet |
Habit: Upright |
Flower Color(s): Red |
Flower Description: Red |
Bloom Period: Summer to Fall |
Foliage Type: Herbaceous |
Foliage Color(s): Green |
Foliage Description: Green |
Seasonal Interest: Fall Interest |
Watering: Average |
Resists: Deer |
Tolerates: Heat |
Attracts: Bees, Butterflies, Hummingbirds |
Container Role: Thriller |
Uses: Borders, Containers, Specimen or Focal Point |
Features: Attracts Pollinators, Cut Flowers, Low Maintenance |
Brand: Proven Winners |
Common Name: Summer Heat Peruvian Lily |
Other Name(s): Peruvian lily or lily of the Incas |
Scientific Name: Alstroemeria 'Tessumheat' |
- SKU:
- SHPLSUMME-GC
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Quart Pot
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

2.5 Quart
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

#1 Pot
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

#2 Pot
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

#3 Pot
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

#5 Pot
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

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Pre-Ordered Plants
Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated Spring Shipping Schedule
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants Shipping Now
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.