Rethinking a Planting Bed

There are a few reasons for a gardener to re-think a planting bed: inspiration for a new approach, boredom with the old approach, overgrown plants (and an invasion of weeds), or a desire to improve the aesthetics.

For one of the beds in my garden, I have the urge to edit the existing plants to satisfy to a thematic concept: Mexican Succulents.

At least ten years ago, I established this bed, which is not large (almost forty square feet) but prominently located in the garden. An edge of larger stones supports a raised planting area, which is ideal for succulent plants. Over time, I installed a variety of succulent plants.

When I look at this bed now, the mix of plants leaves me uneasy. During the intervening years, I have become interested in thematic collections of plants, with an emphasis on county of origin. From that perspective, this bed was a horticultural hodge-podge.

For some gardeners, that reaction might suggest an unhealthy obsession with order, but that’s OK. It’s my garden and I can do what I want.

This concern, which has been lurking in the background for a while, was activated recently by two events. First, at a meeting of the Monterey Bay Area Cactus & Succulent Society, I attended a presentation on Agaves, a southern California succulent. Then, a friend gave me an Agave parryi (Mescal Agave), which is also from southern California and northern Mexico.

I already knew most of the plants in this bed were Mexican or southern Californian, the featured plant being a Dasylirion wheeleri, also called a Desert Spoon.

Dasylirion wheeleri

Dasylirion wheeleri, a succulent plant from Mexico, with a large South African succulent, an Aloe arborescens, in the upper left background.

My concept of “Mexican Succulents” includes southern California, because plants don’t recognize political boundaries, and besides, historically, Mexico included what we now know as southern California.

My first step toward that objective was to inventory the existing plants, to determine which should be relocated. I identified plants from South Africa: Crassula tetragona (Miniature pine Tree), Crassula argentea (Jade Plant), and an enormous Aloe arborescens (Torch Aloe), which has been screening my compost bins.

I also found plants from the Europe and the Mediterranean basin: a self-seeding Euphorbia characias wulfenii (Mediterranean Spurge), a few unidentified plants: Sedums, Sempervivum, and Aeonium.

The task, then, is to move the South African succulents to another bed that already has that theme and to move the others to the bed for Mediterranean Basin plants. The biggest challenge will be to remove the South African Torch Aloe, which needs a larger space than is available elsewhere in the garden, and to find another screen for the compost bins. Aloes are hard to kill, so I could give away cuttings at the curb for other gardeners.

Then, I could assess the newly dedicated bed for Mexican Succulents and begin filling in the empty spaces with new plants, beginning with my one Agave parryi. I probably will avoid collecting agaves because they have sharp terminal spines, are monocarpic (they die after flowering), and produce lots of offsets (pups). There are many other Mexican succulents to explore.

A good practice is to tour your garden occasionally to consider if a bed could be improved by editing the plants, or starting over entirely. It’s best to focus on a limited area, rather than taking on the entire garden at one time. Renewing a planting bed should be a creative exercise and could lead you into a new area of gardening.

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