Search the Library.

American Mushroom Institute

organization

The trade association of US mushroom growers since 1955: growing practices and Mushroom News.

The commercial mushroom industry's home base.

Verified Sep 1, 2026

CEA Alliance

organization

The trade association of US vertical farms and high-tech greenhouse produce growers: best practices and food safety guidance for indoor produce.

The industry's own playbook for growing food indoors safely and at scale.

Verified Sep 1, 2026

Herb Society of America

organization

The herb education society: growing guides and plant profiles.

Herb knowledge with history behind it.

Verified Aug 31, 2026

USDA Urban Agriculture (OUAIP)

funding-program

USDA's Office of Urban Agriculture and Innovative Production: urban ag grants, county-office navigation, and composting programs.

The federal front door for city growing, with money behind it.

Verified Sep 1, 2026

Wageningen University and Research

university-program

The world's top agricultural university, in the Netherlands, and the reference point for greenhouse horticulture science.

Where greenhouse growing is studied hardest; their publications set the bar.

Verified Sep 1, 2026

OpenFarm (archived)

dataset

The crowdsourced growing-guide project, ten years of work, servers shut down in 2025. Only a few hundred crop records were rescued, by Growstuff. The lesson: open data outlives dead servers only if someone mirrors it.

A cautionary tale other directories still link as though it were alive.

Verified Sep 1, 2026

OpenValve

hardware

A 3D-printable irrigation pinch valve, the fastest-growing new open farm hardware project of the past year.

Print your own valves at the makerspace instead of buying them by the dozen.

Verified Sep 1, 2026

Climate Smart Farming (Cornell)

software-tool

Cornell's suite of climate decision tools for Northeast farms: growing degree days, water deficit, freeze risk.

Run the water deficit calculator and know when to irrigate.

Verified Sep 1, 2026

USA National Phenology Network

data-api

Daily gridded accumulated growing degree day maps and pest emergence forecasts, plus the Nature's Notebook citizen science program.

National degree-day maps and pheno-forecasts you can pull by point through their geoserver.

Verified Sep 1, 2026

Greenhouse Grower

publication-media

The trade magazine of commercial greenhouse growing, and publisher of the annual Top 100 Growers ranking, the most cited scale benchmark in the business.

Industry trends free, and every May the map of who is biggest.

Verified Sep 1, 2026

Growing for Market

publication-media

The trade magazine for market farmers since 1992, ten issues a year: peer growers writing up their production and marketing in detail.

The magazine your exact peers write; worth the forty-five dollars if you sell what you grow.

Verified Sep 1, 2026

Growing Produce

publication-media

The home of American Vegetable Grower and American Fruit Grower: trade coverage of commercial fruit and vegetable production.

The specialty-crop trade press, free, with the annual industry survey worth reading whole.

Verified Sep 1, 2026

Hoocho

publication-media

Weekly DIY hydroponics and 3D-printed grow hardware with open designs; the closest active YouTube peer to the open-hardware growing ethos.

Buildable hydro ideas every week, plans included.

Verified Sep 1, 2026

iGrow News

publication-media

Daily CEA and agtech coverage with a Friday digest; not the old SDSU iGrow, and not Link4's iGrow controllers.

Deal flow and sector news for indoor growing.

Verified Sep 1, 2026

Johnny's Grower's Library

reference-work

The research-team-written crop guides, planning calculators, and tech sheets behind the Johnny's catalog: the single best vendor education asset in the sector.

Succession calculators and key-growing sheets you will use every season, free.

Verified Sep 1, 2026

RED Gardens

publication-media

Systematic comparative growing trials, quantified and honestly reported: the most genuinely data-driven grower-educator on YouTube.

What happens when someone actually measures their garden methods for a decade.

Verified Sep 1, 2026

Griffin Greenhouse Supplies

distributor-manufacturer

The family horticultural distributor since 1947, fifteen distribution centers, East-leaning: media, trays, fertilizer, structures, and IPM through a wholesale account.

The big pro house; the reps genuinely know growing.

Verified Sep 1, 2026

Johnny's Selected Seeds

distributor-manufacturer

The employee-owned seed and tool house in Winslow, Maine: trialed varieties with the best cultural information in print, commercial volumes, and a free Grower's Library of calculators and charts.

The reference catalog of specialty growing; the free Grower's Library alone earns the bookmark.

Verified Sep 1, 2026

Territorial Seed

distributor-manufacturer

The family Oregon seed house whose trial-farm heritage shows in the catalog notes, tuned for year-round West Coast growing.

Varieties proven where winters are wet and summers are dry.

Verified Sep 1, 2026

Alaska Agriculture Conference

event

• Nov 12-14, 2026

The statewide gathering of Alaska agriculture, each November in Anchorage.

Everyone growing food in the hardest state to grow it, in one room.

Verified Sep 1, 2026

Growing Wisconsin Conference

event

• Jan 17-19, 2027

Wisconsin's January grower conference at the Dells, renamed from the Fresh Fruit and Vegetable Conference.

The state's fruit and vegetable industry, three days each winter.

Verified Sep 1, 2026

Harvest Wyoming Conference

event

• April

Wyoming's spring specialty-crop conference, rotating cities, run by UW Extension.

High-plains growing answers for the state with the shortest seasons.

Verified Sep 1, 2026

Roots-2-Results Small Farms Conference

event

• February

Nevada's small-farms conference, run north and south each February by UNR Extension.

Desert and high-desert growing answers for the driest state.

Verified Sep 1, 2026

West Virginia Small Farm Conference

event

• February

WVU Extension's February conference at Charleston for the state's small farms.

Mountain-state growing answers, priced for mountain-state farms.

Verified Sep 1, 2026

Cornell Lake Erie Regional Grape Program

university-program

The Cornell and Penn State joint extension program serving 31,000 vineyard acres.

Free crop updates with growing-degree data and disease guides, podcast included.

Verified Sep 1, 2026

Kentucky Center for Crop Diversification

university-program

The University of Kentucky's center for planning, growing, and marketing specialty crops.

Free crop profiles, farmers-market price reports, and enterprise budgets, all current.

Verified Sep 1, 2026

Minnesota Hardy fruit breeding

university-program

The University of Minnesota's 150-year cold-hardy fruit breeding program, Honeycrisp's birthplace.

Free variety catalogs and growing information for every U of M apple, grape, and berry.

Verified Sep 1, 2026

US Men's Sheds Association

community

A workshop and social club where members gather to build things, with a zip-code shed locator. Born in Australia, growing here.

Woodshop access plus retired machinists and electricians who are happy to teach. The person who shows you an ESP32 is not a scary thing may be here.

Verified Sep 1, 2026

The Calculators (134 free tools)

software-tool

134 free calculators built by the collective: VPD, nutrients, lighting, structures, livestock, bees, and more. Every one runs in the browser and can be embedded on your own site.

Run the numbers on nearly any growing question without a spreadsheet or a subscription.

Verified Sep 1, 2026