Borlotto Supremo Nano

Dry Bean

90d to harvest

Unmistakably handsome in the dry pile, Borlotto Supremo Nano brings a velvety, creamy-beige seed with bold cranberry-red mottling that feels almost painterly to the eye. When rehydrated, the beans turn tender and creamy with a gentle, nutty depth—ideal for hearty dry-bean favorites and slow-simmered favorites where their speckled character shines. Compact and garden-friendly, this nano type is a reliable choice for home plots, delivering dependable harvests around 90 days from sowing.

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	May 19th
Transplant / Sow Outdoors	May 19th
Harvest Begins	Aug 17th
Harvest Ends	Sep 21st

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Bush
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	60
Min Soil Temp (°F)	60
Min Night Temp (°F)	45
Harden Off (days)	Not Required

Frequently Asked Questions

Why are my Borlotto Supremo Nano beans turning yellow and developing silvery streaks on leaves, and what should I do?

This is often thrips activity, which causes leaf silvery streaking and can lead to yellowing. Check the undersides of leaves and remove badly affected foliage early. Spray with insecticidal soap (focus on leaf undersides) and repeat every 5–7 days for 2–3 rounds; keep weeds down to reduce thrips habitat.

How often should I water Borlotto Supremo Nano beans during flowering and pod set?

During flowering and the start of pod development, keep the soil consistently evenly moist—typically about 1 inch of water per week total, split into 2–3 watering days. Let the top 1 inch of soil dry slightly between waterings, but don’t allow the root zone to dry out fully, which can cause poor pod set. Use a deep soak rather than frequent light sprinkling to keep pods forming reliably.

How do I know when Borlotto Supremo Nano beans are ready to harvest?

Harvest for dry beans when pods are fully filled and the plants’ pods are mostly dry and papery, usually around 90 days from sowing. For best results, pick pods on a dry day, then finish drying indoors until beans rattle inside the pods and are hard enough to resist denting. If you want shell beans earlier, harvest when pods are plump but seeds are still tender and the skins are glossy, then dry lightly before storage.