Description
Cultivar Name: Jalapeño Lemon Spice Pepper Seeds
Species: Capsicum annuum
Common Names: Lemon Spice Jalapeño, Yellow Jalapeño, NuMex Lemon Jalapeño
Type: Hybrid (NuMex series)
Origin & Lineage
Geographic Origin: New Mexico, USA
Development History: The Jalapeño Lemon Spice was developed by the Chile Pepper Institute at New Mexico State University as part of its NuMex color series, which includes Lemon, Orange, and Pumpkin Spice jalapeños. These cultivars were bred to expand the visual and flavor diversity of traditional jalapeños while maintaining their signature heat and productivity. Jalapeño Lemon Spice was created by crossing a standard green jalapeño with a yellow-fruited Capsicum annuum line, followed by multiple generations of selection for color stability, flavor, and pod uniformity.
Cultural Significance: This cultivar represents a modern evolution of the jalapeño, offering a vibrant lemon-yellow hue and a citrus-forward flavor profile. It has gained popularity among chefs, gardeners, and hot sauce makers for its ornamental appeal and culinary versatility. Jalapeño Lemon Spice are especially favored in summer dishes, pickles, and sauces where color contrast and brightness are desired.
Lineage / Hybridizer History:
The Jalapeño Lemon Spice was released by the Chile Pepper Institute in 2015. It is genetically distinct from heirloom jalapeños and was bred specifically for color, flavor, and heat balance. Its development reflects the Institute’s mission to innovate within Capsicum annuum while preserving the jalapeño’s core identity.
Heat Profile
Scoville Rating (SHU): 2,500–8,000 SHU
Perceived Heat: Medium—comparable to standard jalapeños, with occasional spikes depending on growing stress
Heat Characteristics: The burn is smooth and progressive, beginning with a gentle warmth across the tongue and building toward a mild throat tingle. The heat is concentrated in the placenta and inner membranes, but the thick flesh buffers the intensity. Under drought stress or high sun exposure, pods may develop sharper heat, occasionally exceeding expectations.
Flavor Profile
Tasting Notes: Jalapeño Lemon Spice offer a crisp, juicy bite with upfront sweetness and bright citrus notes. The flavor leans toward lemon zest and green apple, with subtle grassy undertones. Compared to standard jalapeños, the Lemon Spice variant is fruitier and more aromatic, making it ideal for fresh applications.
Aftertaste / Finish: The finish is clean and slightly tangy, with lingering warmth and a touch of bitterness near the seeds. Roasting enhances caramel and citrus notes, while pickling intensifies acidity and preserves crunch.
Ideal Pairings:
- Fresh mango or pineapple salsa
- Pickled rings on burgers and tacos
- Jalapeño poppers with cream cheese and lemon zest
- Citrus-marinated grilled chicken
- Lemon jalapeño aioli or hot sauce
Pod Review: https://www.youtube.com/watch?v=BqRvgm2wVcs
Fruit Characteristics
- Shape: Conical, slightly curved pods
- Size: 6.5–7 cm long, 2.5–3 cm diameter
- Color Stages: Immature: green → Ripe: bright lemon yellow
- Wall Thickness: Medium to thick
- Texture & Skin: Smooth, glossy, firm
Plant Details
- Growth Habit: Upright and bushy
- Plant Height & Width: 60–75 cm tall, 45–60 cm spread
- Foliage: Dark green, ovate leaves
- Flower Color: White
- Days to Maturity: 65–80 days from transplant
- Yield: High – 40–60 pods per plant under optimal conditions
Cultivation Information
- Seed Count per Pack: 5 or 10 seeds
- Germination Time: 7–14 days (Germinating Chilli Seeds)
- Optimal Germination Temp: 24–29°C (Essential guide to ideal temperatures and humidity for chilli seed germination)
- Light Requirements: Filtered sun (minimum 6–8 hours/day)
- Soil Preferences:
- pH: 6.0–7.0
- Well-draining loam enriched with compost (Easy DIY soil mixes)
- Mulch to retain moisture and suppress weeds
Storage Tips: Store Jalapeño Lemon Spice seeds in airtight containers in a cool, dry place. Refrigeration with desiccants can extend viability up to 5 years.
Notable Compounds
Capsaicinoid Content:
- Moderate capsaicin and dihydrocapsaicin
- Heat concentration varies by ripeness and stress
Volatile Flavor Compounds:
Anthocyanins / Pigments:
Yellow coloration due to carotenoids; no purple pigmentation
Culinary & Cultural Use
Traditional Uses: While not traditional in Mexican cuisine, Jalapeño Lemon Spice have found their way into modern Tex-Mex, fusion, and gourmet dishes. Their bright color and citrusy flavor make them ideal for summer recipes, pickles, and sauces.
Raw vs Cooked Flavor: Raw Jalapeño Lemon Spice pods deliver crisp sweetness and a lemony punch. Roasting deepens the flavor and adds smoky complexity. Pickling preserves color and crunch, while stuffing absorbs savory richness.
Regional Dishes:
- Lemon jalapeño salsa with coriander and lime
- Pickled yellow jalapeños for burgers and wraps
- Bright yellow Jalapeño poppers with goat cheese and lemon zest
- Citrus-marinated grilled chicken with jalapeño glaze
- Lemon jalapeño hot sauce or jelly
Storage / Drying / Preserving Tips:
Dry pods whole or sliced in a dehydrator. Pickling is highly effective—use vinegar, garlic, and sugar for a balanced brine. Roasted peppers can be frozen or blended into sauces. For seed saving, allow pods to fully ripen and dry before extraction.




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