Disclaimer

Last updated: March 29, 2026

Planting Dates Are Estimates

All planting dates on WhenToPlant are based on historical frost date averages from NOAA's 30-year Climate Normals database. These dates represent what has typically happened in the past — they are not predictions or guarantees for any specific year.

Your actual last frost date in any given spring could be weeks earlier or later than the average. Microclimates, elevation, urban heat islands, and year-to-year weather variation all affect real-world frost dates.

Not Professional Advice

The growing tips, soil advice, and planting recommendations on this site are compiled from publicly available sources including university cooperative extension services, USDA data, and established gardening references. This information is provided for general educational purposes and should not be considered professional agricultural or horticultural advice.

For specific guidance about your local growing conditions, we recommend contacting your county's cooperative extension service. Find yours at USDA NIFA.

Affiliate Relationships

WhenToPlant participates in affiliate programs. When you click certain product links and make a purchase, we may earn a commission. This never affects our planting recommendations — we recommend practices and timing based on growing data, not product sales. See our How We Make Money page for full details.

Limitation of Liability

WhenToPlant is not responsible for any crop loss, garden damage, or other negative outcomes resulting from use of information on this site. Gardening involves inherent uncertainty — weather, pests, soil conditions, and other factors are beyond anyone's control. We provide the best data-based guidance we can, but successful gardening always requires adapting to your specific conditions.