Home Gardeners’ School 2019

The 23rd annual Home Gardener’s School will be Saturday, June 1 from 8:30 am to 3:30 pm.

The Home Gardeners’ School is a day of gardening inspiration, learning from top regional gardening experts, and an opportunity to meet with fellow gardeners. 

This event is hosted by the Master Gardeners of Delaware County at the Education Center in Smedley Park in Springfield, Pa.

You don’t have to be an experienced gardener to attend this event. All levels of experience are welcome.

The day includes 3 activity sessions. Create your own perfect day by choosing your favorite activity for each session.

Bid in the silent auction to win unique plants, gift certificates, books, and other items of interest to gardeners.

And of course our Master Gardener Marketplace with a fabulous selection of outdoor planters: big, small, short and tall! Great for pollinator pots, veggies and ornamentals plus a variety of plants. Unique MG-made items found nowhere else.

Registration and shopping begin at 8:30 am. Our educational sessions are summarized below. You can register on line here.


9:00 – 10:15 Session Choices:

Lecture A – Nature Nurtures – The Power of Plants – Louise D. Clarke, Horticulturist, Morris Arboretum –  Enjoy a fascinating presentation on the scientific evidence that demonstrates the positive effects of the natural (outdoor) environment on both our physical and emotional well-being. Cost $20

Workshop A – Herb Vinegars, Dips & Spreads, Oh My! – Jane Nyiri, Master Gardener -Taste fresh herbs in dips and spreads and enjoy a hands-on experience in making your own herb spread and vinegar to share with family and friends. Recipes will be shared. Limited to 15. Cost $25

Workshop AA – Build a Bird Feeder – Frank Foxwell, Master Gardener – Join Frank in assembling your own birdfeeder for Baltimore Orioles, Catbirds and Scarlet Tanagers. Suitable for mounting outdoors, each feeder has locations for jelly, apples, and oranges. Bring portable drill (Philips head driver, 1/8” & ¼” bits) & hammer. Limited to 15. Cost: $25

10:30 – 12:00 Session Choices:

Lecture B  – Developing Curb Appeal – Duncan Himmelman, PhD, Mt. Cuba Center Educator – Learn how to revitalize your front yard to meets your needs, provides year-round horticultural interest and variety, and increases your property value. Cost $20.

Workshop B – Wood Base Moss Wreath with Clay Pots & Succulents – Joe Daniels, Master Gardener – Create a sensational wood base moss wreath with sedums in clay pots to decorate your summer garden. Hands-on workshop, plants included, bring gloves. Limited to 15. Cost $25

12:00 Noon – Lunch

Purchased lunch selection available through on-line registration.

1:00 – 2:30 Session Choices:

Lecture C – Let’s Look at the New Perennials for 2019 – Sharee Solow, Designer & Owner, Solow Horticultural Designs – Find out the best new plants for your garden this year. Sharee will review the “best of the best” new perennials for 2019, highlighting the ones that will thrive in our area. Cost $20.

Workshop C – Building Your Own Bamboo Trellis or Tuteur – Julia King, Master Gardener – Bamboo is a wonderfully versatile building material and one of the world’s most renewable resources. It’s lightweight, strong, and flexible, and it looks at home in most garden designs. Build your own ornamental trellis or tuteur for your clematis, beans or any other climbing plant in need of a little support on its skyward growth path. Limited to 15. Cost $25.

Workshop CC–Master Gardener –Summer Sippin’ Herb Container – Brenda Troutman, Master Gardener – Grown for their versatile use, herbs are some of our oldest plants. Learn their preferred growing conditions and the new ways to incorporate them into your garden and containers. Each participant will plant a beverage herb container to take home for their summer drinks. Limited to 15. Cost $25.

Annual Garden Contest 2019

Are you proud of your garden and believe it is worthy of notice?  Enter the Delaware County Master Gardener 2019 annual Garden Contest being held this summer.

For more than 20 years, the Delaware County Master Gardeners have been sponsoring a garden contest for Delco residents as a way to way to educate and empower gardeners to beautify their environment . 

The contest is open to individual gardeners as well as community gardens in both ornamental and vegetable categories.  We welcome all gardens that merit attention. 

Sub-categories for the contest include:

Ornamental Gardens:

  • Native/wildlife – use of native plants that attract and sustain wildlife
  • Pollinator Gardens – use of plants that attract bees, birds, and butterflies
  • Landscape Design

Vegetable Gardens:

  • Individual
  • Community Gardens
  • Youth Gardens
  • Novice Vegetable Gardens for first year gardeners

Garden judging takes place on June 14th for the ornamental garden categories and August 9th for the vegetable garden categories .

You can download a copy of the contest registration form here.

Winners will be notified by mail. First, second and third place winners in each category are invited to our Fall Fest in September 28th in Smedley Park to receive their ribbons.  

Weed Watch – Lesser Celandine

Lesser Celandine may have cheerful yellow flowers, but don’t let it fool you. This is an aggressive, non-native thug that is wreaking havoc in our natural landscapes (not to mention front yards, back yards, flowerbeds and lawns).

Lesser Celandine (known as Ficaria verna but sometimes still listed as Ranunculus ficaria ) was brought from Europe in the 1860’s as an ornamental plant and escaped cultivation. The plant has shiny, dark green, kidney shaped leaves and bright yellow flowers. It typically emerges in late January to early February.

Because it emerges so early and creates a very dense mat of leaves, it smothers many of our native spring wild flowers by blocking out light, air and growing space before they can even get started. Our native insects are then deprived of the pollen and nectar they need early in the season.

Lesser Celandine is an ephemeral and is usually dormant by late June. This can cause problems in wetlands because other plants have been snuffed out so there is not as much vegetation left to prevent soil erosion in late season flood events.

Lesser Celandine is a very vigorous spreader, mainly through underground tubers and bulblets attached to the leaf stems. It prefers moist soil, but can survive in drier areas. It can colonize an area very quickly.

The tubers and bulblets can be spread by animals, by flooding and even by well meaning gardeners. It is often seen along stream banks where it has been spread by water flow.

Managing Lesser Celandine is very difficult. Small infestations can be weeded out, but you must remove all the tubers and bulblets. Weeding can actually spread the weed if you are not careful. To help contain the spread, keep in mind:

  • Never put removed Lesser Celandine in the compost.
  • Do not pile it on the ground or rake it up, put it directly in a disposal container. You may need to dispose of some soil along with the tubers to ensure you have removed it all.
  • Mowing Lesser Celandine can fling the small bulblets into other sections of the lawn.
  • When the plant is dormant, its easy to move the tubers from one part of the garden to another when transplanting other plants.

It is possible to eliminate Lesser Celandine with herbicides, but the window of opportunity is small. Here are a few references that discuss the use of herbicides.

Pollinator Display Garden

Learn about pollinators at the display garden in Smedley Park.

Article by Louise Sheehan and Heather Gray

One community educational endeavor in which Delaware County Master Gardeners are engaged is the creation and maintenance of various display gardens.

One such garden is the Pollinator Garden. Located on the Penn State extension grounds at Smedley Park, it was founded in 2002 and is replete with mostly native plants that sustain butterfly, bee, and bird pollinators. The purpose of the garden is to inform the public about native plants that attract pollinators.

These pollinators are essential in moving pollen from one plant to another in an effort to produce more plants.  Selecting native plants sustains the natural wildlife and beauty that is unique to our region.

Some plants in the garden are penstemon, bronze fennel, monarda, echinacea,and lobelia cardinalis. This variety of native plants has attracted a delightful diversity of butterflies, including monarchs, pearl crescents, silver spotted skippers, black swallowtails, to name a few.

Insects and animals are essential for pollination. The seeds produced through pollination are the basis of our ecosystems. These plants stabilize the soil and purify the air. Pollinators are also responsible for much of our nutrition; without them, we would not have an ample supply of fruits and vegetables.

Tending the garden begins in early spring with a general clean-up and deciding what additional plants should be purchased or replaced.  Each week throughout the summer, the Pollinator Garden Committee members, maintain the garden by weeding, watering, replanting, pruning, etc.

In 2013 the garden received the Community Greening award from the Pennsylvania Horticulture Society. It also earned a Penn State Pollinator Friendly Garden Certificate.

The public is invited to visit the garden to view the flowers and pollinators and to learn which plants to choose for their own gardens or to just sit and enjoy the beauty and richness of the garden. To aid gardeners in selecting plants, a brochure entitled How to Grow Your Own Pollinator Garden was designed and created by some of the committee members and is available at the garden. It provides the public with key information on the plants in the garden.  


Plant and seed sales and swaps

Special thanks to Brenda Troutman for research

Delaware County and the surrounding area has many active gardening groups, gardening societies, arboretums, public gardens and historical sites that hold special plant and seed sales and swaps. We’ve collected descriptions of some of those sales below so you can plan your plant shopping adventures.

Many of these sales support various non-profit and charitable activities – so you can buy plants and do good at the same time. What could be better?

The Winters Heritage House Museum third annual Heirloom Seed Swap. Saturday, March 23, 2019 from 10am to noon at 47 East High Street in Elizabethtown, PA. More information here.

The Penn State Brandywine Sustainability committee plant/seed swap. Friday March 29th from noon to 1:00. Penn State Brandywine, Student Union Building , 25 Yearsley Mill Road, Media, PA 19063. For more information contact
Mary Fran. Email: Maryfran.mcl at gmail dot com

Providence Garden Club Annual Plant Sale. Friday, May 3rd, from 8 am to 1 pm and Saturday, May 4th,  from 8 am to 12:00 pm on the campus of Williamson College of the Trades, 106 S. New Middletown Road, Media Pa. More information here.

Tyler Arboretum Plant Sale. Saturday and Sunday, May 4 and 5, general public, 9am – 3pm both days. More information here.

Garden Club of Springfield 9th Annual Herb, Plant and Bake Sale. May 4, 9:00 am on Saxer Avenue on the grounds of the Old Schoolhouse. More information here.

Schuylkill Center Greenhouse and Native Plant Nursery Spring Plant Sale. Saturday May 4th & 11th 8:30 am to 4:00 pm, Sunday May 5th 9:00 am to 2:00 pm:  8480 Hagys Mill Road, Philadelphia, PA. Click here for more details.

Central Pennsylvania Native Plant Festival and Sale.  May 4, 2019,  10AM – 3PM,  Boal Mansion, Boalsburg, PA.   Click here for details.

Manada Conservancy’s 19th Annual Spring Native Plant Sale.  May 4, 2019, 10:00 am – 3:00 pm at Herbert A Schaffner Memorial Park, Parkside Ave, Hummelstown, PA 17036. Click here for details.

Scott Arboretum Selections: Spring Sale  Sat., May 11, 2019 – Member only shopping, 10 am – 12 pm,  free and open to the public, 12 – 3 pm. More information here.

The Brandywine Conservancy annual Wildflower, Native Plant and Seed Sale. Saturday, May 12–Sunday, May 13, 2018  – 9:30 a.m.–5 p.m. More information here.

King’s Gap Plant Sale and Spring Garden Days.  10 am – 4 pm -May 11, 12 – 4pm May 12,   500 Kings Gap Rd, Carlisle, PA. More information here.

Delaware County Master Gardeners Home Garden School and Plant Sale. Saturday, June 1 form 10:00 to 3:00 at Smedley Park, 20 Paper Mill Rd, Springfield, PA. More information here.

Did we miss your favorite local plant sale? Include the information in the comments below and we will add it to the list.

Garden Chores for March

A month of managing mud

Weather wise, March can be a very unpredictable month. Sometimes you can tackle some early spring chores and sometimes you just need to sit on your hands and wait until the weather cooperates.

The biggest problem is wet, soggy soil. When doing garden work, avoid standing, walking or driving over wet soils as much as possible. Wet soils compact much more easily. It is extremely important not to till soggy soils, especially with a rotary tiller. Its not worth risking the soil structure of your planting bed just to try to gain a couple of weeks gardening time.

That said, here are some chores you might be able to tackle.

In much of Delaware County, this month is the time to start seeds for warm season vegetables and flowers that need 8 weeks of growth inside – things like tomatoes and marigolds. You can also start cool season crops like lettuce and broccoli to give them a head start for planting out in mid-April.
Some cold season vegetables (like peas, potatoes, spinach, carrots, radish, onion sets and directly seeded lettuce) can be planted in the garden near the end of the month provided the soil is not too wet to work. The soil should crumble when handled.

You can begin cleaning up garden debris. Rake excess debris carefully off beds that hold earliest bloomers first – bulbs and spring ephemerals.

Trim the old foliage from ornamental grasses before they start new growth.

Trim old foliage from very early spring blooming perennials like Hellabore and Epimedium.

Finish pruning fruit trees and some woody ornamentals. Rejuvenate some overgrown shrubs and hedges by cutting them back. This article provides guidance on what to prune when.

Ornamental shrubs can be transplanted while dormant provided – you guessed it – the soil is not too wet.

Plant pansies and violas in the garden.

Direct sow poppy seeds in the flower beds. Make sure to mark them so you don’t disturb them cleaning up beds later.

Carefully push any perennials that have heaved out of the soil due to freeze-thaw cycles back in place to avoid root damage. Take note of any perennials that will need to be divided next month.

Clean out any bird houses or nesting boxes to be ready for a new season.

Enjoy all the fresh air and sunshine that you can!

The weeds in my beds blues

Those wicked, winter weeds…

Spring is coming – honest, and with the change in the weather the cold season weeds are ready to explode. I usually have a very nice selection of early season weeds.  I thought I’d just share a few…

I’m not sure everyone calls them by the same common name, so I added botanical names – even though I hate giving them any sort of respectability.

Hairy Bittercress – looks innocent until the seeds start exploding

Right now I have tons of Hairy Bittercress (Cardamine Hirsute). This is a winter annual that gets little white flowers on pretty tall stems.  The flowers turn into these long seed pods.  When the seeds are ripe, the pods explode when disturbed – shooting the seeds all over.  Apparently, the seeds can fly up to 16 feet! The best way to manage them is to pull them before they make seeds, but in my garden they like to hide inside other plants.  I think I’ll have them forever.

Purple deadnettle

Another weed growing now is Purple Deadnettle (Lamium pupureum).  I get this all around the edges of my vegetable garden and flower beds. It has square stems – always a warning sign because square stems belong to the mint family, usually very hardy and fast growers.  It gets pretty blue flowers, but it’s dangerous to let it go too long.  I try to pull it out of my vegetable beds whenever I see it and I put it in my brush pile, not my compost so it does not re-root.

I think my most hateful weed (at least this time of the year) is Creeping Charlie (Glechoma Hedoracea), also known as ground ivy.  This weed is a bit of a thug.

Creeping Charlie overgrowing a perennial geranium

It continues to grow in cold weather while many other things are dormant – twining its way around, over and under all the other plants, smothering them.  It grows over and under barriers, through small cracks in raised beds, and roots all along its stem. 

Usually I can work this weed out from around other plants, but sometimes I have to dig up the desired plant, untangle the creeping charlie and then replant.

Some say a weed is just a plant out of place, and its true that some plants we call weeds are actually very valuable to native insects and pollinators (like common violets for instance).

My approach is to try to maintain a kind of peace between my desired plants and the weeds. I think its OK to have a few weeds here and there.