SproutSmart
SproutSmart Intelligent Garden Sowing

Green Thumb · Amaranth

Zone 2b Save Garden

Planting Schedule

Add Green Thumb to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDirect Sow
Last FrostMay 15th
Transplant / Direct Sow OutdoorsMay 15th
Harvest BeginsJun 29th
Harvest EndsAug 25th

Crop Details

Transplant Conditions: Wait until soil reaches 60°F and nights stay above 50°F before moving outdoors.
TraitValue
Days to Maturity45
Sun RequirementsFull Sun
Growth HabitUpright
Support NeededNone
Planting DepthSurface
Germination Temp (°F)70
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)Not Required
Expert Note: Sow shallow and keep evenly moist until seedlings establish—amaranth grows fast but is slow to recover from root disturbance.