SproutSmart
SproutSmart Intelligent Garden Sowing

Grey Zucchini · Zucchini

Zone 7a Save Garden

Planting Schedule

Add Grey Zucchini to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDirect Sow
Last FrostApr 20th
Transplant / Direct Sow OutdoorsMay 4th
Harvest BeginsJun 18th
Harvest EndsOct 20th

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 Maturity45
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: For best early yield, start seed in biodegradable pots, keep soil warm, and transplant only after nights are reliably warm to avoid slow, stressed regrowth.