VegetablePepper
Serrano Purple Pepper
Serrano Purple Pepper is a fiery, high-yielding hot pepper that brings both heat and visual drama to the garden. These compact upright plants, reaching just 24 to 36 inches tall, produce deep purple peppers about 2.25 inches long over an 80 to 89 day growing season. An open-pollinated heirloom variety packing 10,000 to 20,000 Scoville Heat Units, it thrives in zones 4 through 13 and rewards full-sun gardeners with prolific harvests suitable for fresh salsa and cooked applications alike.
Photo © True Leaf Market
Growing Conditions
USDA Zone
4-13
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained, Fertile Loam With Organic Matter
Growth Stats
36 in
Height
TypeUpright
Spacing
18
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
4-13
Size
36in H x ?in W
Growth
—
Care
High
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Highlights
Deep purple peppers hung abundantly on compact, upright plants create a striking ornamental display while delivering serious heat with a clean, crisp bite. The 2.25-inch fruit is perfectly sized for fresh applications, and the high yield means you'll have plenty to work with whether you're making salsa, preserving, or adding kick to everyday meals. This open-pollinated heirloom produces true seed, so you can save your own from the best plants year after year.
Common Uses
Fresh salsa is where Serrano Purple truly shines, delivering the heat and flavor that salsas demand. The peppers can be used fresh in salsas, pico de gallo, and chile-based sauces, or roasted to deepen their flavor. They also dry well for later use, making them suitable for home preservation and creating your own dried chile powders and spice blends.
Growing Timeline
No timeline data available yet for this variety.
Care Instructions
Start Indoors
Start seeds indoors 6 to 8 weeks before your last spring frost, planting them 1/4 inch deep in warm, moist seed-starting mix. Maintain soil temperature between 70 and 85 degrees Fahrenheit for consistent germination. Transplants will be ready to harden off and move outdoors once they've developed their first true leaves and nighttime temperatures remain above 50 degrees.
Transplant Outdoors
Transplant outdoors after your last spring frost when soil has warmed to at least 60 degrees Fahrenheit and daytime temperatures consistently reach the upper 60s. Space plants 18 inches apart in rows 36 inches apart. Harden off seedlings by gradually exposing them to outdoor conditions over 7 to 10 days before transplanting to reduce transplant shock.
Harvesting
Serrano Purple peppers are ready to harvest 80 to 89 days after transplanting, when they reach their deep purple color and measure approximately 2.25 inches long. For fresh salsa, harvest at full purple color for maximum flavor and heat. Peppers can be picked slightly immature for milder heat or left on the plant longer for increased Scoville intensity. Use sharp pruning shears or scissors to cut peppers from the plant rather than pulling, which can damage branches.
Pruning
The upright growth habit requires minimal pruning. Remove any dead, diseased, or damaged branches as they appear. You can selectively remove lower leaves once plants are established to improve air circulation and reduce disease pressure, particularly in humid climates.
Growing Calendar
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Companion Planting
Pests & Diseases
Ecology & Traits
Edible
Scientific Classification
Capsicum annuum
Family
Solanaceae
Genus
Capsicum
Growth Habit
Upright
Native Status
L48 (NI)HI (I)PR (I)VI (I)
History & Origin
“Serrano Purple is an open-pollinated heirloom variety, meaning it has been preserved and passed down through generations of gardeners and seed savers who recognized its combination of productivity, heat level, and distinctive purple coloring. Unlike modern hybrids bred for uniformity and shelf life, this variety represents the collective work of growers who selected plants for flavor, vigor, and the ability to thrive across diverse growing conditions. Its journey to today's gardeners reflects the broader seed-saving movement that has kept heirloom vegetables alive and accessible.”