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In 1969, A.C. and Penney Hubbard had no inkling that the garden they would create at their home north of Baltimore would become recognized as one of the finest in Maryland. 

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Welcome to our News from On Walnut Hill

Welcome to the blog by Penney and Kathy. On it we will write about events around the book and in the Hubbard garden. We’ll pass on some advice and share stories of interesting gardens and garden people as well as the good, bad and ugly in the plant world.

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Remembering Kurt Bluemel

The nationally renowned plantsman Kurt Bluemel is on our minds. This June marks the fifth anniversary of his death. Kurt helped us transform our Walnut Hill property into what it is today.  He established the series of three courtyards and the two-person wide brick sidewalk that form the central axis around which all of our […]


Watching for Spring

First came the winter solstice. The next day we swore we could see that daylight lasted a minute later. We love the quietude of winter, when we bury ourselves in plant catalogues and plot garden changes, but we’re always anxious for longer days and signs of spring. By January each day gains one and a […]


Remembering Ingrid Ernestl

Remembering Ingrid Ernestl (1965-2018), Great Gardener and Friend. In 1994 a friend called and asked if we would like to have some help in the garden. My husband and I were in our 50s and realized that we […]


Welcome, Joe!

A year ago we planted a stand of Joe Pye weed (Eutrochium dubium ‘Little Joe’) in a sunny spot on the path down to the garden. Fireworks of colorful purple blooms are the result this late summer. We love the late bloom time because of the color it adds to our garden and the pollinators […]


Emerald City

Big leaves. Tall plants. Prodigious blooms. More than nine inches of rain in the past six weeks have created a Rosseau-esque vision on Walnut Hill. Our plants look as if we’ve treated them with major fertilizer, but we have not. Not since June 2014, when Roger Foley documented our early summer gardens for the book, […]


Seeds Sown Early

On a recent trip to Longwood Gardens, my sister and I went with her goddaughter and family. We thought of our early trips to the rose gardens there with our parents and grandmother. Never would we have imagined we’d end up as gardeners ourselves or repeat trips with the next generation. At Longwood I thought […]


Fall Cleanup?

While our goal used to be leaf-free by Christmas, we’ve come to do much less fall cleanup. We now do one leaf gathering before Thanksgiving and let the remaining leaves (there are plenty of latecomers) rest on the beds until spring. This way we have minimal disruption and, as new growth emerges, we remove […]


Hortus Club of New York

Few things invigorate on a 96-degree Baltimore day. Our garden being the first stop on the three-day summer expedition of the prestigious Hortus Club of New York did just that. With membership limited to 30 horticulturalists from the finest nurseries, botanical gardens, arboretums, and universities in New York, the level of experience and knowledge among […]


In Praise of Hoses

In the 1990s, when our hillside was terraced and the gardens were transformed, no automatic irrigation system was installed. We made that decision, because sprinkler systems need frequent monitoring and maintenance. We were concerned that when we travelled, an automatic system might malfunction and flood the new gardens. Plants can drown where puddles form. Too […]


Tour Givers’ Holiday

We hosted our last spring garden tour this week. After a full schedule of tours on Walnut Hill, we took one ourselves. Kathy leads bus trips to private gardens twice a year for the Kaleidoscope program of Roland Park Country School. A recent one included two Baltimore County gardens Penney had never seen, and one […]

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The Story of On Walnut Hill

The Story

In 1969, A.C. and Penney Hubbard had no inkling that the garden they would create would become recognized as one of the finest in Maryland.


The Contributors to On Walnut Hill

The Contributors

On Walnut Hill features essays and text by noted garden writer Kathy Hudson and the images of award-winning photographer Roger Foley.

Meet Them

On Walnut Hill in Four Seasons

On Walnut Hill

The book On Walnut Hill features over 234 images of the horticulturally diverse gardens, which are themselves living sculpture.

View Images

Book Signing

Book Signing

Tuesday, December 8 at 7pm

Book Signing

Book Signing

Saturday, December 12, 10:30 a.m. to 2:30 p.m.

Book Signing

Book Signing

Saturday, December 5 from 11am to 2 pm.

Behind The Scenes On Walnut Hill

Behind The Scenes On Walnut Hill

Thursday, March 31st, 7:00 – 8:30 pm

Gardener's Advice from Walnut HIll

Gardener's Advice from Walnut HIll

Saturday, April 9 at 11:00am

Living Sculpture Garden Tour

Living Sculpture Garden Tour

Wednesday, May 18th, 9:00 am - 3:00 pm

Penney and A.C. Hubbard with garden writer Anne Raver. Photo by Roger Foley.

Penney Hubbard with Stephanie Peer of Babikow Greenhouses. Photo by Roger Foley.

Perennial Plant Association visitors on the lawn. Photo by Roger Foley.

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