Yes, on a window that gets at least six hours of direct sun. In a dimmer window the plant will grow leaves but few berries unless you add a small grow light.
Which Windows Work
In the northern hemisphere a south-facing window is best, followed by west and east. North-facing windows do not give strawberries enough light. Outside obstructions matter as much as direction: a south window shaded by a tree or a neighboring building may fall short.
The Winter Problem
Short winter days and a low sun mean even a good window delivers far less light than in summer. Expect growth and fruiting to slow from late autumn. A small LED grow light on a timer, run for a few hours morning and evening, makes up the difference.
Temperature at the Glass
- In summer, the space behind sunny glass gets hot. A small jar of solution can overheat, so move it back a little or shade the container.
- In winter, the sill can be cold at night. Keep leaves from touching the glass.
Setting Up for a Sill
- Choose a container that fits securely and will not tip. A half-gallon jar or a narrow tub suits one plant.
- Cover the container to keep light off the solution.
- Pick a day-neutral variety, which flowers regardless of day length.
- Turn the container every few days so the plant grows evenly.
Do Not Forget Pollination
There are no bees indoors. Brush the center of each open flower with a small soft brush every day or two, or the fruit will be small and misshapen.
Related guide: Lighting for Kratky strawberries.
