Carolina Sieva

Family: Fabaceae Legume

Carolina Sieva brings a lush, garden-bright harvest of creamy, tender lima beans with a mellow, buttery sweetness and a velvety bite.

The pods mature to a satisfying fullness, delivering well-filled seeds that cook up luxuriously for classic succotash-style dishes, hearty sides, and spoonable purees. Grow this dependable 90-day favorite for a steady, satisfying yield that feels tailor-made for the home gardener’s pantry.

Light: Full SunMaturity: 90 DaysHabit: Bush

Botanical illustration of Carolina Sieva

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

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	Jul 24th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Bush
Support Needed	Trellis
Planting Depth	Normal
Germination Temp (°F)	75
Min Soil Temp (°F)	65
Min Night Temp (°F)	55
Harden Off (days)	Not Required

Culinary Notes

Chef's Note

Carolina Sieva’s biggest trick is texture: these cook into a velvety, creamy spoonful rather than drying out or turning chalky. Treat them gently with steady heat and finish bright—acid or fresh lemon wakes up that buttery sweetness fast.

Best Uses

succotash—stew just long enough to keep beans buttery, not mushy
buttery lima-bean succotash skillet with a splash of lemon at the end
thick purée or mash for spooning under grilled meats
warm bean salad where they hold their shape and catch vinaigrette

Flavor Profile

mellow buttery sweetness creamy, tender interior subtle vegetal bean flavor velvety, spoonable texture when cooked

Kitchen Pairings

bacon garlic parmesan lemon butter

Frequently Asked Questions

What pests or diseases commonly affect Phaseolus lunatus (Christmas Lima/Carolina Sieva beans), and how can I control them?

Lima beans (Phaseolus lunatus) are prone to rust and fungal leaf spots, especially when leaves stay wet. Water at the soil line and improve airflow (space plants and avoid overhead watering), then remove heavily spotted leaves early. For recurring trouble, use a labeled copper-based fungicide at the first signs of rust/spotting and repeat according to the label (especially during humid weather).

How often should I water Phaseolus lunatus during the main growing phase, and what soil moisture level does it need?

During flowering and pod fill (most of the ~90-day growing period), keep the soil consistently moist but not waterlogged—aim for the top 1 inch to dry slightly between waterings. In warm weather this typically means deep watering 1–2 times per week, more often if the bed dries quickly. If the soil stays soggy, lima beans suffer and may drop flowers, so ensure good drainage or use raised beds if you’re prone to standing water.

How do I tell when Phaseolus lunatus (Carolina Sieva) is ready to harvest?

Harvest for dry beans when pods are fully formed and the beans rattle inside; the pods should be dry and papery rather than soft. For fresh “green shell” beans, pick pods when they are plump and still tender, usually before the pods fully dry. Either way, harvest before pods split or start shattering, and then dry fresh-picked beans further in a warm, dry place if you’re saving them.