SproutSmart
SproutSmart Intelligent Garden Sowing

Columbia Star · Blackberry

Zone 7a Save Garden

Planting Schedule

Add Columbia Star to your garden to build a schedule and get reminders.
MilestoneDate
Start IndoorsDirect Sow
Last FrostApr 20th
Transplant / Direct Sow OutdoorsApr 20th
Harvest BeginsApr 20th
Harvest EndsOct 20th

Crop Details

Transplant Conditions: Wait until soil reaches 50°F and nights stay above 35°F before moving outdoors.
TraitValue
Days to Maturity365
Sun RequirementsFull Sun
Growth HabitMounding
Support NeededTrellis
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)50
Min Night Temp (°F)35
Harden Off (days)Not Required
Expert Note: Plant blackberry brambles in full sun with good drainage, and plan to train the trailing canes on a trellis to keep fruit off the ground and improve airflow.