GrowIndex builds precision tools and educational resources for indoor plant enthusiasts, collectors, and horticultural professionals who demand accuracy over approximation.
GrowIndex was founded on a straightforward premise: most available plant care advice is too vague to be useful. Recommendations like "water when the soil feels dry" or "place in bright indirect light" leave too many variables unspecified to produce consistent results across different environments, seasons, and plant types.
We built calculators and guides that apply measurable parameters — pot size, light intensity in lux ranges, seasonal transpiration rates, substrate drainage coefficients — to produce specific, actionable outputs. The tools are free and require no account registration.
Every article on the GrowIndex blog is written by specialists with professional backgrounds in horticulture, plant physiology, or soil science. We do not publish generic care roundups. Each piece addresses a specific technical question with enough depth to produce a real change in practice.
Four principles that govern how we build and communicate.
A recommendation is only useful if it is specific enough to act on. We quantify where possible and explain the reasoning behind each guideline.
Our tools and articles are grounded in horticultural research and field-tested by practitioners. We do not repeat claims without tracing them to a credible source.
Professional-grade information should not require a subscription or specialist background to access. All tools remain free and require no registration.
Plant science evolves. We update our tools and articles when new evidence changes best practice, and we are transparent about the basis for each recommendation.
The people who write, research, and build GrowIndex resources.
Fourteen years advising botanical gardens and private plant collectors on sustainable care systems. Specialises in tropical foliage species and seasonal care protocols.
Researcher focused on photosynthesis efficiency and artificial light optimisation for indoor cultivation. Contributes GrowIndex's light requirement frameworks and diagnostic logic.
Advises botanical institutions and nurseries on substrate formulation. Developed the soil mix guides and repotting protocols published on GrowIndex.