2025 Master Gardener Plant Sale Directory

April 1, 2025

Discover exceptional locally-grown plants while supporting gardening education across Pennsylvania with the annual Penn State Extension Master Gardener plant sales happening this spring. Find that special addition to your garden while connecting with knowledgeable Master Gardener volunteers.

Weed Season Opens Soon!

February 28, 2025

Understanding a weed's life cycle—its growth and reproduction pattern—is the first step in controlling your weeds. Horticulturists have three weed life-cycle classifications: annual, biennial, and perennial.

Animal? Vegetable? Mineral? No, It's Lichen

February 10, 2025

Lichens are not plants; they are a symbiotic combination of multiple species.

Snake Plant: A Forgiving, Low-maintenance Houseplant

January 15, 2025

Snake plants are perfect beginner house plants.

Garden and Landscape Symposium and Marketplace

December 23, 2024

Symposium space is limited. Preregistration is required. Join gardeners and landscapers of all experience levels for an educational day featuring nationally renowned horticultural professionals. Hosted by the Master Gardeners of Allegheny County, this event attracts master gardeners, home gardening enthusiasts, and novices from across the region. Participants will learn about the effects of weather on plants, the impacts of climate change on weather patterns, and eco-friendly design techniques. Symposium sessions will also explore adaptive gardening approaches to help plan for changing climates. The event includes engaging speakers, plant sales, and more.

Not-So-Nice Native Plants

December 18, 2024

Native plants have many ecological benefits but some of them have poisonous properties. You may not want to invite these native plants into your yard.

2025 Plant Sale Selections Announced

December 17, 2024

The Master Gardeners of Allegheny County have finalized selections for the 2025 Garden Marketplace in April.

You Can Decide Your Future

October 22, 2024

October is National Estate Planning Awareness Month.

You Can Decide Your Future

October 22, 2024

October is National Estate Planning Awareness Month.

Invasive Autumn and Russian Olives

September 5, 2024

Ornamental olive trees, once frequently sought-after landscape plants, are now on Pennsylvania's invasive plant list.

David Gibby Search for Excellence Winners

July 3, 2024

Our South Park Learning Garden won second place in a statewide search for excellence among PA's Master Gardener Demonstration Gardens.

Tweaking Your Garden Calendar for Pollinators and Beneficial Insects

June 24, 2024

Create a healthy garden teaming with pollinators and other beneficial insects by adding, changing, or removing a few tasks in the gardening process through the seasons.

2023 Penn State Extension Master Gardener Annual Report

May 6, 2024

View the full report of Penn State Extension Master Gardener county, state, and even national accomplishments!

2024 Plant Sale Selections

March 19, 2024

All plant availability is dependent on crop performance and quantity in stock.

To Buy or Not to Buy - The Gear Your Houseplants Really Need

January 16, 2024

What should the gardener make of houseplant products that abound, especially on websites and in catalogs? This article recommends which accessories are necessary for indoor plant care and which are not.