Cooperative extension offices

Purdue Horticulture and Landscape Architecture Extension

West Lafayette, Indiana, serving Indiana and the Midwest. Listed as a reference, not an endorsement.

Overview

Purdue Extension provides horticulture education and resources for Indiana gardeners, growers, and green industry organizations. This listing is provided for reference, not as an endorsement, certification, ranking, or guarantee of current availability.

Services and programs

  • Home and yard gardening
  • Extension Master Gardener program
  • Plant production resources

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:

  • Local county programming
  • Current Master Gardener opportunities

Related directory resources

Browse all extension offices or return to the directory hub.

Sources and last verified

Source: Purdue Extension. Last checked 2026-10-04.

Purdue Horticulture and Landscape Architecture Extension provides science-based horticulture information for Indiana and the Midwest.

What this listing covers

Published areas include home and yard gardening, Extension Master Gardeners, nursery and landscape topics, fruit and vegetable crops, organic agriculture, and urban agriculture.

Before contacting the program

Check whether your question belongs with a county extension office, a specialist, or the Master Gardener program. Current participation and training details should be confirmed on the official source.

More tools

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Calculate

Square foot garden planner

Lay out a bed in 1 foot squares and count the plants.

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Companion planting

Compare plants for practical compatibility.

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Seed swap matcher

Find reciprocal swaps between two local seed lists.

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Sun calculator

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

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Garden guides

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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 round cabbage head wrapped in outer leaves

Vegetable

Cabbage

A cool-season brassica grown for dense heads that keep well in storage.

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Illustration of a pale cauliflower head made of tight florets

Vegetable

Cauliflower

The fussiest common brassica, rewarding steady cool growth with tight white curds.

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Illustration of a bundle of pale green celery stalks

Vegetable

Celery

A long, thirsty cool-season crop that needs an early indoor start and constant moisture.

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Illustration of three thick leek stalks

Vegetable

Leeks

A slow cool-season allium grown for long white stems that sweeten with frost.

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Glossary terms

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timing

First frost date

A first frost date estimates when a location may experience its first autumn freeze. Use it to plan harvest and protection, not as a guarantee.

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timing

Frost tolerant

Frost tolerant describes a plant that can survive or continue growing through some freezing conditions, although tolerance varies by species, stage, and duration.

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seeds

Germination

Germination is the process in which a viable seed resumes growth and produces a root and shoot. Learn what seeds need and how to improve emergence.

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plant biology

Grafting

Grafting joins part of one plant to the rooted part of another so their tissues can grow together as one plant with shared functions.

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Gardening directories

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Cooperative extension offices

Rutgers Cooperative Extension Home, Lawn and Garden

Rutgers Cooperative Extension publishes home, lawn, and garden information for New Jersey residents through university extension resources.

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Nurseries and garden centers

Prairie Moon Nursery

Prairie Moon Nursery offers native seeds and plants for gardening and restoration, with a catalog organized around North American species.

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Nurseries and garden centers

Hoffman Nursery

Hoffman Nursery publishes a catalog focused on grasses, sedges, perennials, and native plants for landscape use.

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Nurseries and garden centers

Taylor Creek Restoration Nurseries

Taylor Creek Restoration Nurseries supplies native plants and seed for backyard gardens, habitat projects, and restoration work.

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