Cooperative extension offices

Illinois Extension home vegetable gardening

Urbana, Illinois, serving Illinois. Listed as a reference, not an endorsement.

Overview

Illinois Extension publishes home vegetable gardening information for planning, planting, harvesting, cooking, and preserving garden crops. This listing is provided for reference, not as an endorsement, certification, ranking, or guarantee of current availability.

Services and programs

  • Home vegetable gardening
  • Harvest guidance
  • Local Extension programs

What to verify before you go

Contact the organization or review its official source before making a trip, placing an order, joining a garden, or applying for funding. Details that commonly change include:

  • Current local programs
  • Regional planting guidance
  • Question support options

Related directory resources

Browse all extension offices or return to the directory hub.

Sources and last verified

Source: University of Illinois Extension. Last checked 2026-10-04.

Illinois Extension publishes home vegetable gardening information for planning, planting, harvesting, cooking, and preserving garden crops.

What this listing covers

The resource is written for Illinois gardeners and connects the guidance to local Extension programs and current research.

Before planting

Use the regional information as a starting point, then confirm local planting dates, pest conditions, and county program contacts.

More tools

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Sun calculator

Classify a spot by hours of sun and see what fits.

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What should I plant

Match plants to your sun, space, and goals.

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Can I grow this

Check a plant against your light, space, pH, and season.

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Calculate

Soil pH amendment calculator

Get pounds of lime or sulfur to move your soil pH.

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Garden guides

Browse all guides

Greenhouse growing

Greenhouse temperature guide for seeds and seedlings

Use crop-specific greenhouse temperatures for seed germination, seedlings, frost protection, and ventilation, with practical day and night ranges.

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Diagram of a raised bed cross section showing timber walls, a layer of existing soil or coarse fill, and the measured depth of new soil being added.

Materials

How much soil does a raised bed need?

How to measure a raised bed and turn the volume into bags or bulk cubic yards, with a worked example for a common 8 by 4 bed.

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October calendar diagram showing planting windows for garlic, spring bulbs, hardy greens, and cover crops closing as the first fall frost approaches.

Seasonal

What can I plant right now in my garden?

In early October, most US gardeners can still plant garlic, spring bulbs, hardy greens, and cover crops. Here is what is still open and what has closed.

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Diagram of a tulip bulb in a soil cross section planted at about three times its own height, pointed end up, with a depth marker of 6 to 8 inches.

Fall planting

When should I plant tulip bulbs?

Plant tulip bulbs in fall, about 6 to 8 weeks before the ground freezes. Here is how the window shifts by region and how deep to plant.

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Plant library

Browse all plants
Illustration of a comfrey plant with broad lance-shaped leaves

Herb

Comfrey

Comfrey planting, propagation, and cutting guidance for home gardens, including the sterile cultivar that keeps it from spreading.

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Illustration of a strawberry plant with two berries on curved stems

Fruit

Strawberries

A perennial fruit crop that bears for several seasons when beds are mulched, thinned, and renewed.

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Illustration of a blueberry branch with leaves and a cluster of berries

Fruit

Blueberries

A long-lived shrub that demands acidic soil, then repays the preparation for decades.

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Illustration of a raspberry cane with clusters of berries

Fruit

Raspberries

A perennial cane fruit that bears on first-year or second-year canes depending on the type you grow.

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Glossary terms

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seeds

Seed dormancy

Seed dormancy is a condition in which a living seed does not germinate even when some basic conditions appear suitable. Learn why dormancy can be useful.

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seeds

Seed viability

Seed viability is the ability of a seed to remain alive and capable of germinating under suitable conditions. It is different from germination speed or vigor.

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soil

Soil aggregate

A soil aggregate is a cluster of sand, silt, clay, organic matter, and biological material held together as a crumb or soil structural unit.

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soil

Soil pH

Soil pH measures how acidic or alkaline a soil solution is. It affects nutrient availability and should be interpreted with the crop and a reliable soil test.

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