Saint Petersburg, Russia

Supplemental lighting that hardens seedlings faster

Crop Urbanis experimented with photoperiods, spectra and intensity to deliver transplant-ready seedlings with lower energy draw in a northern climate.

Documented outcomes shared with stakeholders

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Services used

Crops

Region

Project overview

Commercial nurseries in Saint Petersburg sought lighting insights to produce uniform seedlings for greenhouse partners. Crop Urbanis was commissioned to run controlled trials and translate results into scalable protocols.

Challenges & approach

Northern latitude light availability limited growth without supplemental spectra.
Nurseries faced transplant shock due to weak root systems.
Energy costs had to stay within tight budgets.

Our contribution

Designed trials comparing blue/red ratios, pulsed lighting and photoperiod adjustments.
Assessed root development and carbohydrate accumulation with lab analytics.
Delivered rollout guides detailing fixture settings, monitoring steps and energy budgeting.

Outcomes & proof

Metric	Result	Context
Lighting matrix	Delivered	Spectrum × intensity plan
Trial protocol	Delivered	Replicates and controls
Results summary	Compiled	Seedling response