SproutSmart
SproutSmart Intelligent Garden Sowing

Giant California Wonder

Family: Solanaceae Sweet Pepper

Planting Schedule

Add Giant California Wonder to your garden to build a schedule and get reminders.

Sink your senses into Giant California Wonder’s glossy, thick-walled bell peppers, where crisp green turns to a rich, warm red as the fruit swells to impressive size.

The flesh is satisfyingly firm with a sweet, mild snap, making these peppers a standout for fresh slicing, roasting, and vibrant sauces that showcase their full-bodied flavor. Grow one plant and enjoy a steady harvest of showy, garden-ready bells that look as good as they taste.

Light: Full SunMaturity: 75 DaysHabit: Bush

Botanical illustration of Giant California Wonder

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

Crop Dates

MilestoneDate
Start IndoorsFeb 28th
Last FrostApr 25th
Transplant / Sow OutdoorsJun 20th
Harvest BeginsSep 3rd
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity75
Sun RequirementsFull SunFull sun
Growth HabitBush
Support NeededStake
Planting DepthNormal
Germination Temp (°F)80
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)10

Culinary Notes


Chef's Note

Giant California Wonder’s thick walls give you that rare sweet bell pepper bite—crisp enough for raw slices, but substantial enough to roast without turning watery. It’s a workhorse for charred sheet-pan peppers and for sauces where you want pepper flavor and structure, not just color.

Best Uses

  • thick slicing for salads and sandwiches where the pepper won’t collapse
  • roasting (whole or in broad slabs) to coax out caramel-sweet char notes
  • quick skillet sauté for fajita-style strips that stay toothsome
  • blending into a silky, body-giving pepper sauce or relish

Flavor Profile

sweet, mild pepper flavor crisp snap with thick, meaty walls slow-blooming roasted sweetness clean, grassy finish when green

Kitchen Pairings

lime garlic olive oil chicken cheddar smoked paprika

Frequently Asked Questions


What pests or diseases commonly affect Capsicum annuum (Giant California Wonder) and what can I do?
Watch for aphids and hornworms, which can quickly defoliate and damage developing peppers; control aphids with a strong water spray and use hand-removal for hornworms when you spot them. Also monitor for blossom-end rot and leaf spotting—blossom-end rot is driven by irregular watering, so keep soil moisture steady and avoid letting plants dry out between waterings.
How often should I water Giant California Wonder peppers during the main growing phase?
During fruiting, water deeply enough to moisten the root zone, typically about 1–2 times per week depending on heat, aiming for evenly moist (not soggy) soil. Let the top 1 inch of soil dry slightly between waterings, since water stress can trigger blossom-end rot while consistently wet soil encourages root problems.
How do I know when Giant California Wonder (Capsicum annuum) is ready to harvest?
Harvest at about 75 days when the peppers are full-sized and firm, with a glossy appearance and walls that feel substantial. For the classic mature stage, pick when the fruit turns its final color (often green turning to red), since leaving them on too long can reduce firmness and delay new fruit set.