Siam Hot

Family: Solanaceae Hot Pepper

A bright, lively heat blooms with each slender pod of Siam Hot—vividly hot, yet clean and aromatic, like a sunlit spark.

These Bird’s Eye peppers ripen to a glossy, deep red over a slender, upright form, offering a crisp snap and a smooth, taut skin that stays vivid through drying and preserving. Grow Siam Hot for bold fresh flavor in salsas and relishes, and for roasting, pickling, and fiery sauces that need a precise, peppery punch.

Light: Full SunMaturity: 70 DaysHabit: Upright

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Mar 7th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Jun 20th
Harvest Begins	Aug 29th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	70
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	Stake
Planting Depth	Normal
Germination Temp (°F)	80
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	10

Culinary Notes

Chef's Note

Siam Hot’s heat lands fast and bright, with a peppery aroma that stays readable even after processing—great when you want burn plus flavor, not just scorching. Its taut, snappy pods hold up in quick pickles and chopped salsas without collapsing into watery background heat.

Best Uses

quick-chopped fresh heat in salsa and relishes where you want visible pepper crunch
fire-roasted sauces and chili pastes that benefit from a sharp, aromatic edge
vinegar pickling for peppery snap that stays vivid and crisp
drying to grind—keeps a clean, fragrant burn instead of turning flat

Flavor Profile

bright, crisp heat (bird’s eye intensity) clean, peppery aroma with a sunlit, slightly green lift snappy, slender-pod crunch with taut, smooth skin red-ripe sweetness that shows up behind the burn

Kitchen Pairings

lime garlic cilantro smoked paprika vinegar fish sauce

Frequently Asked Questions

What pest or disease is most likely to hit Capsicum annuum (Siam Hot/Thai Bird’s Eye type peppers), and how do I manage it?

Fungal leaf spot and early blight can show up as dark spots on leaves and may spread quickly in humid conditions. Remove affected leaves early, improve airflow by spacing plants, and water at the soil line instead of overhead; for home control, use a labeled copper-based fungicide according to the label if new spots appear. For pests, watch closely for aphids and use insecticidal soap when you first see clusters, repeating as directed on the label.

How often should I water Siam Hot (Capsicum annuum) during the main growing phase?

During active flowering and fruit set, keep the soil consistently moist but not soggy—water deeply about 1–2 times per week, then adjust so the top 1–2 inches dry slightly between waterings. If peppers wilt during the day and leaves feel limp, water immediately and check drainage because Capsicum annuum is sensitive to both drought stress and waterlogged roots. Mulch helps steady moisture, but avoid piling mulch against the plant stems.

How can I tell when Siam Hot peppers (Capsicum annuum) are ready to harvest?

Harvest when fruits are fully sized and have turned their mature color for your plant (often green-to-red as they ripen), and the peppers should feel firm with a glossy skin. Typical timing is around 70 days from transplanting/sowing to maturity, but don’t wait for over-softening—once they ripen, leaving them too long can slow new fruit production. Clip peppers with scissors or pruners to avoid tearing the stems and damaging nearby buds.