SproutSmart
SproutSmart Intelligent Garden Sowing

Blue Coco

Family: Fabaceae Legume

Planting Schedule

Add Blue Coco to your garden to build a schedule and get reminders.

Indigo-blue pods and richly colored beans bring a striking, velvety beauty to the garden long before harvest—then the dry beans deliver a smooth, creamy interior when rehydrated.

Blue Coco’s seeds hold their shape with a pleasing, tender bite, making them especially satisfying for hearty pot-style favorites and robust bean-forward recipes. Grow them for a season-long spectacle of deep blue color and a pantry staple you’ll reach for again and again.

Light: Full SunMaturity: 75 DaysHabit: Vine

Botanical illustration of Blue Coco

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

Crop Dates

MilestoneDate
Start IndoorsDirect Sow
Last FrostApr 25th
Transplant / Sow OutdoorsApr 25th
Harvest BeginsJul 9th
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity75
Sun RequirementsFull SunFull sun
Growth HabitVine
Support NeededTrellis
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)Not Required

Culinary Notes


Chef's Note

Blue Coco’s indigo-blue beans cook into a notably creamy, velvety interior while still keeping a tender, chewable shape—exactly what you want when beans should be the main event, not just a background player. Use them in long, brothy simmering applications where their body thickens the pot without going pasty.

Best Uses

  • soaked-and-simmered beans for chili or thick bean stews
  • smooth purées for bean dip or spread with a drizzle of olive oil
  • bean-forward soups where they thicken without graininess
  • hot-season rice or grain bowls—warm beans keep their shape

Flavor Profile

gentle, nutty bean sweetness creamy interior after soaking and long cooking tender bite that holds shape instead of turning to mush silky, velvety mouthfeel in broths

Kitchen Pairings

onion garlic smoked paprika cumin bay leaf olive oil

Frequently Asked Questions


Why are my Blue Coco leaves turning yellow with sticky residue and black soot, and what should I do?
This is often aphids (or sometimes whiteflies) feeding on Blue Coco, leaving sticky honeydew that supports black sooty mold. Spray plants with a strong jet of water, then apply insecticidal soap (especially on the undersides) and repeat every 5–7 days for 2–3 rounds. If infestations are heavy, remove the worst leaves and keep weeds down around the bed to reduce breeding sites.
How often should I water Blue Coco during the main growing phase?
During the main growth period leading up to fruit set, keep soil consistently moist but not soggy—water about 1–2 times per week depending on heat, with deeper watering each time. Aim for the top 1 inch of soil to dry slightly between waterings; if the soil stays wet and cool, Blue Coco can suffer root stress. Use morning watering so leaves dry quickly and reduce disease pressure.
How do I know when Blue Coco is ready to harvest at ~75 days?
Harvest when pods/fruit (depending on how you grow Blue Coco) reach full color and size and feel firm rather than soft, typically around 70–80 days after planting. Check the stem and fruit surface: they should have a mature, even blue tone with no green patches, and the plant should look slightly “spent” but still intact. If you can easily detach mature fruit/pods with light twisting, they’re ready—don’t wait for over-softening on the plant.