About Garden Grove

Garden Grove is a free library for gardeners — planting calendars by USDA zone, care guides for houseplants, growing guides for vegetables and herbs, and calculators that do the garden maths.

What we do

We answer the questions every gardener asks: what should I plant this month, when is it safe to plant out, how much water does this plant actually need, and how much soil fits in this bed? Our planting calendars are organised by USDA hardiness zone and month, our houseplant guides cover light, water, soil and feeding species by species, and our tools turn those answers into numbers you can use in the garden.

Where our information comes from

Frost dates on this site are USDA zone averages — ranges, never exact dates for a particular garden or ZIP code. We draw on USDA hardiness zone data and NOAA frost records as our reference points, and we always say so when a date is an average. Weather varies from year to year, and every garden has its own microclimate, so we encourage readers to check their local cooperative extension service for conditions in their area.

An editorial note

Gardening advice on this site is general guidance, not professional advice. We do not diagnose plant disease from a photo, and we do not prescribe treatments — our pest and disease guides help you narrow down what you are seeing and decide what to do next, including when to ask a local expert. Read our Editorial Policy and Disclaimer for the full picture.

Contact

Questions, corrections or suggestions? We welcome them — see our Contact page.