
I wanted an alpine plant trough garden. First, I fell in love with the plants I had seen at the Philadelphia Flower Show, Wave Hill in Riverdale NY and Stonecrop Gardens in Cold Springs NY. Second, I knew the plants required sharp drainage, lean, gravely soil, and height or rocky isolation from the rest of the garden. Third, I had no one to lug 90 lbs. of concrete and the materials needed to fashion a trough. I had no access to a coveted stone trough or sink. Fourth, I decided to design a cinder block garden on my own terms. “They” said cinder blocks were too alkaline.
I did the sketch and researched how to wash the blocks. I found the recipe for the gritty soil mix.

Early planting included Rhodendron wren, Rhododendron ‘Chinzan’, Arabis, Lewisia and Stachys.

The Rhododendron ‘Chinzan’ is now 10 years old still living in its cinder block.

Many years later I used Sedum tenatum, Antennaria (pussy toes), Stachys, Iris cristata, Lewisia (eventually eaten).
In another garden, I switched out violets and sometimes miniature bulb varieties and Tiarella cordifolia. Lilly of the valley is encroaching relentlessly.
On to the roses:
I wanted to grow roses but “they” said roses won’t grow in the shade. Then I read Margery Fish’s Gardening In The Shade. Yes, some roses can grow in the shade and she listed varieties.
Here’s Mdm. Gregoire Staechelin under a swamp maple, facing west. “They” said roses can’t be grown under trees as they’ll suck up the water and nutrients in the soil.
Here’s Alberic Barbier under trees facing west with Mrs. Herbert Stevens to his right. “Too close to breathe and bloom.”
Zephirine Drouhin and Royal Gold under an oak tree, next to a neighbor’s fence, grabbing whatever sunlight they can. They” said nothing should grow around the base or create competition. I planted iris and tulips underneath.
This is another view with ‘Dr. Huey ‘Shafter’ on the left, who was a rootstock grafted on to departed rose. It is hard to see, but there’s a Lonicera, coral honeysuckle, intwined in the middle. As a side note, all the other roses are own root.
“They” said never use raw vegetable material as fertilizer. A successful roses grower used vegetable/fruit scraps thrown directly on the rose bed. So I did, and the roses thrived. The scraps must keep the soil moist and fertile as they decompose.
Let’s ignore the doomsayers and rigid doctrines and follow our heart’s direction, to let us sink or swim in the pleasure of our own escapades in our own personal gardens.
Love your thoughts!!! Thank you
Love this! Thank you!
Darn right! Carpe diem in our own gardens. Your successes and attitude are inspiring.
I like the way you think. Cassandra Danz a.k.a. Mrs. Greenthumbs also advised trying things that “they” didn’t always recommend. For her, sometimes they worked and sometimes they didn’t.
I’ve had enough failures as I do tend to experiment. Each failure is a lesson taught. Above all, pay attention to the roots and the soils that feed them. Research, common gardening sense and keen observation helps.
Perhaps it didn’t work for “them/they” however, that does not mean it won’t work for you. We can only try to see what works. Your “neighbor” in Lackawaxen PA. 🙂
Try cutting the lily of the valley that is in areas you don’t want it, down right after it blooms. This keeps it from gathering nutrition for the next year. I did that by accident one year and it became my ‘go to’ solution for mine’s galloping into adjacent beds.
I agree completely. For me, the first rule of container gardening is to not listen to people who tell you what you can’t plant in a pot.
To each their own path!
Professor, I love your posts!
I love this attitude! Everyone has their own unique situation and a way to make it work. I also have a cinderblock garden modeled after Pam Penix (I think) who arranged a 4 ft high multi-cinderblock planter for succulents. Here’s my question – how DO you ‘wash’ the cinderblock? I’d like to do more but am concerned about the pH. thanks for this post!
Hi Bev, The object is to wash off some of the alkaline residue of the blocks and make them more acidic. Make a fairly thick slurry of coffee or strong tea, peat moss (if available), a couple drops of dish liquid, and any plain dirt you have. Scrub the blocks with a wire brush inside and out and let them dry. Then fill with your lean, gritty soil mix. Again, enjoy the project, don’t worry too much (like I did), the plants will know what to do.