Cooperative extension offices

Nebraska Extension horticulture and landscape systems

Lincoln, Nebraska, serving Nebraska. Listed as a reference, not an endorsement.

Overview

Nebraska Extension provides lawn, garden, landscape, water, and food production resources with digital diagnostic support. This listing is provided for reference, not as an endorsement, certification, ranking, or guarantee of current availability.

Services and programs

  • Lawn and garden resources
  • Digital diagnostic network
  • Master Gardener program

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:

  • Digital diagnostic account requirements
  • Current county contacts and programs

Related directory resources

Browse all extension offices or return to the directory hub.

Sources and last verified

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

Nebraska Extension provides lawn, garden, landscape, water, and food production resources for Nebraska residents.

What this listing covers

The source includes a digital diagnostic network, lawn and garden information, and an Extension Master Gardener program. It also publishes resources for green industry professionals.

Before asking a question

Check whether the digital diagnostic service requires an account and use the current county contact for local issues.

More tools

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Calculate

Soil calculator

Calculate how much soil your garden needs.

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Mulch calculator

Estimate mulch volume and bags required.

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Compost calculator

Size a topdressing layer or a soil amendment blend.

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Calculate

Garden unit converter

Convert cubic yards, bags, and pounds for garden materials.

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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

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Illustration of feathery fennel fronds

Herb

Fennel

A tall, anise-flavored herb grown for fronds and seed, or as a bulb vegetable under another planting schedule.

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Illustration of a tarragon stem with narrow leaves

Herb

Tarragon

A cool perennial herb prized in French cooking; buy plants, since true tarragon rarely comes true from seed.

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Illustration of a lemon balm stem with paired leaves

Herb

Lemon balm

A lemon-scented mint-family perennial for tea and pollinators, nearly indestructible once planted.

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Illustration of a marjoram stem with small rounded leaves

Herb

Marjoram

A tender perennial grown as an annual, sweeter and milder than its close cousin oregano.

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Glossary terms

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plant biology

Node

A node is a point on a plant stem where leaves, buds, branches, or roots can develop. Nodes help gardeners understand pruning and propagation.

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soil

NPK

NPK stands for nitrogen, phosphorus, and potassium, the three numbers on a fertilizer label that state the percentage by weight of each nutrient.

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soil

Nutrient deficiency

A nutrient deficiency occurs when a plant cannot obtain enough of an element for normal growth. Symptoms depend on the nutrient, crop, roots, and soil conditions.

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plant labels

Open-pollinated

Open-pollinated describes a variety that produces seed through natural pollination and can reproduce its traits when properly isolated and selected.

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Gardening directories

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