SproutSmart
SproutSmart™ Intelligent Garden Sowing

Imperator 58

Carrot
Zone 10a Save Garden

Planting Schedule

Add Imperator 58 to your garden to build a schedule and get reminders.
Botanical illustration of Imperator 58
75d to harvest

Sweet, crisp, and richly carrot-scented from the first bite—Imperator 58 delivers a smooth, uniform harvest with a deep, true-orange core and a clean, tapered silhouette. The texture is notably tender-crisp, holding its snap for fresh use and roasting, while its bright flavor shines in vibrant sauces and quick pickles. Grow Imperator 58 for a dependable 75-day rhythm and a garden-to-plate payoff that looks as good as it tastes.

Crop Dates

Growing note: In frost-free Zone 10a, grow this cool-season crop during the cooler dry season (October–February).
MilestoneDate
Start Indoors—
ClimateFrost-Free Climate
Transplant / Sow OutdoorsOct 1st
Harvest BeginsDec 15th
Harvest EndsFeb 28th

Crop Details

TraitValue
Days to Maturity75
Sun RequirementsFull SunFull sun
Growth HabitTaproot
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)50
Min Night Temp (°F)35
Harden Off (days)Not Required

Today's Conditions

Outdoor planting for Imperator 58 in Zone 10a typically begins around 2026-10-01. Wait until soil reaches at least 50°F before transplanting Imperator 58.

Garden Alerts

In frost-free Zone 10a, grow this cool-season crop during the cooler dry season (October–February).

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Tuscan Blue Rosemary
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Frequently Asked Questions

What pest or disease problems commonly affect Daucus carota (carrot), and what should I do if I see them?
Watch for carrot fly (eggs near the crown that lead to tunneling) and for Alternaria leaf blight, which shows as dark, target-like spots on the foliage. Use fine row cover immediately after sowing to block carrot fly, and remove heavily infected leaves early to slow Alternaria; keep the bed free of weeds that harbor pests. If you see leaf blight spreading, avoid overhead watering and water only at soil level to reduce leaf wetness.
How can I tell when my Daucus carota ‘Imperator 58’ is ready to harvest?
Start checking around 70–75 days from sowing: the shoulders should be visibly thick above the soil line and the roots should feel firm when gently tugged. For Imperator-type carrots, harvest when roots are near the expected size and before they get oversized, which can lead to a tougher core. If unsure, pull a test row—if the interior is crisp and fully colored, harvest the rest promptly.
Botanical illustration of Imperator 58

Sweet, crisp, and richly carrot-scented from the first bite—Imperator 58 delivers a smooth, uniform harvest with a deep, true-orange core and a clean, tapered silhouette. The texture is notably tender-crisp, holding its snap for fresh use and roasting, while its bright flavor shines in vibrant sauces and quick pickles. Grow Imperator 58 for a dependable 75-day rhythm and a garden-to-plate payoff that looks as good as it tastes.

Today's Conditions

Outdoor planting for Imperator 58 in Zone 10a typically begins around 2026-10-01. Wait until soil reaches at least 50°F before transplanting Imperator 58.

Garden Alerts

In frost-free Zone 10a, grow this cool-season crop during the cooler dry season (October–February).

Sowing Tips

Soil Temperature

Direct sow or transplant when soil at planting depth holds 50°F for reliable germination and early growth.

Expert Note

For the longest Imperator-style roots, sow in deep, sandy soil and keep the top layer consistently moist until seedlings emerge.