SproutSmart
SproutSmart Intelligent Garden Sowing

Buttercup · Squash

Zone 1a Save Garden

Planting Schedule

Add Buttercup to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsJun 8th
Last FrostJun 15th
Transplant / Direct Sow OutdoorsJun 22nd
Harvest BeginsSep 25th
Harvest EndsJul 15th

Crop Details

Transplant Conditions: Wait until soil reaches 65°F and nights stay above 55°F before moving outdoors. Harden off for 10 days first.
Direct sow preferred — this crop has sensitive roots and does not transplant well. If starting indoors, use biodegradable pots and disturb roots as little as possible when moving outdoors.
TraitValue
Days to Maturity95
Sun RequirementsFull Sun
Growth HabitVine
Support NeededTrellis
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)65
Min Night Temp (°F)55
Harden Off (days)10
Expert Note: Buttercup is a cucurbit—plant after warm weather with plenty of mulch to keep soil heat up, and avoid root disturbance if you do transplant.