Plant Training Calculator

Plan your indoor plant training schedule for topping, LST, and canopy management.

Plant Growth Habit

Available Space (width)

Desired Top Sites

Vegetative Weeks

weeks

Tab to move between fields

First Topping Week

Expected Canopy Spread

3 ft

≈ 6 smartphones

LST Start Week4

Yield Multiplier2.1x

How to Use This Calculator

Select your plant's growth habit: 1=Bushy/compact, 2=Tall/standard, 3=Vine/aggressive grower.
Enter the maximum canopy width in feet that your space can accommodate.
Enter the number of main flowering/fruiting tops desired — each topping event doubles the number of tops.
Enter the total number of vegetative weeks before you switch to the flowering or fruiting stage.
Review First Topping Week, LST Start Week, Expected Canopy Spread (ft), and Yield Multiplier to build your training schedule.

What each input means

Plant Growth Habit: Select the plant growth habit
Available Space (width): Maximum canopy width you can accommodate.
Desired Top Sites: Number of main flowering/fruiting tops desired (each topping doubles).
Vegetative Weeks: Total weeks in vegetative growth phase before flowering.

Identify Input Parameters
4 parameters
Plant Growth Habit = 2, Available Space (width) = 3, Desired Top Sites = 8, Vegetative Weeks = 6 = 4 input(s) provided
Calculate First Topping Week
First Topping Week
3 = 3
Calculate Expected Canopy Spread
Expected Canopy Spread
3 = 3
Calculate LST Start Week
LST Start Week
4 = 4