SproutSmart
SproutSmart Intelligent Garden Sowing

Chester Thornless · Blackberry

Zone 5a Save Garden

Planting Schedule

Add Chester Thornless to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDirect Sow
Last FrostMay 8th
Transplant / Direct Sow OutdoorsMay 8th
Harvest BeginsAug 6th
Harvest EndsSep 30th

Crop Details

Transplant Conditions: Wait until soil reaches 40°F and nights stay above 28°F before moving outdoors.
TraitValue
Days to Maturity90
Sun RequirementsFull Sun
Growth HabitVine
Support NeededTrellis
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)40
Min Night Temp (°F)28
Harden Off (days)Not Required
Expert Note: Plant blackberry canes in full sun with a trellis, keep roots evenly moist the first season, and prune to separate first-year canes from fruiting canes for best yields.