Cool Season Crops: Extending The Growing Season
Having lived most of my life in the Pacific Northwest, my frame of reference for the gardening season was this: in the spring, gardens were planted, then from May until September, things would grow, berries were picked, various crops were harvested, apples and pears ripened, pumpkins and other gourds were ready for Halloween picking, and then it was done. The gardens were shut down and left fallow for the winter. It was a very finite time, and unless someone was that rare warrior gardener willing to take on cold frames, ice and snow, and freezing temperatures, gardening ceased until the spring, when the cycle would begin again. Once the weather turned in early October, residents hunkered down to eight months of cold, wet and rainy weather (27 to 48° F, and 78.63 inches of rain, give or take a tenth of an inch).
Contrast that against Contra Costa’s winters of coolish days sandwiched between cool mornings and crisp evenings. Today’s temperature is a high/low of 65°/46° F. For some of us that live here, it feels a bit nippy and we want to wrap up and hunker down inside (to a Portlander, though, 65° is considered balmy and a great excuse to wear shorts; its not unusual to see Portlanders walking around with shorts, boots and a down vest in the winter).
Although it’s understandable to want to hunker down and wait until early spring to begin the garden, this is perfect weather for growing cool season crops. In many ways, a cool season garden is easier to tend to than a warm season garden because:
- There are fewer insects to contend with; and
- Watering needs are much lower this time of year; and
- The plants can withstand light to hard frost and temperatures down to 28° F.
My garden currently contains Romanesco, broccoli raab, and cauliflower. I grew them successfully last year, along with some spinach and lettuce varieties, and I am looking forward to enjoying them again this year.
The Romanesco is a vegetable that I hadn’t heard of until last year, and I am enthralled by it. It’s a delicious-tasting vegetable, and a beautiful work of art, with its vivid lime green color and perfectly spiraled fractals. It is known as either Romanesque Cauliflower or Romanesco broccoli, and is of the Brassica oleracea species.
If you haven’t tried a Romanesco yet, here is a recipe for Broccoli Romanesco with Sage Browned Butter for you to try hoping that once you taste it, you’ll want to grow it.
Romanesco veggie starts are available in many brick and mortar, or online, nurseries If you can’t find them this year, consider adding them into your garden next year. In the meantime, other, and more common, veggies that grow well in the winter are:
Light Frost Hardy (as low as 32° F). Artichokes, beets, carrots, cauliflower, celery, chinese cabbage, endive, lettuce, parsnips, peas, swiss chard, escarole, arugula, bok choy, mache, and radicchio.
Hard Frost Hardy (as low as 28° F). Broccoli, Brussels sprouts, cabbage, collards, kale, kohlrabi, mustard, onions, parsley, peas, radishes, spinach, turnips, leeks, and sorrel.
Hey, are you dissing my Oregon? On the Oregon Coast, we’ve been have temperatures of 65 and 70F in November. Unbelievable! Okay, I’ll have to admit you get a longer growing season there, and I wouldn’t mind having your weather.
Is Broccoli Romanesco the same as the photo of Fractals? I’d love to have that growing just for the unique shape, but I’ll have to wait til next spring as it will probably not grow in the long shadows.
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Ha! No I’m not dissing Oregon. I miss the seasons. Yes, the photo of fractals is the Romanesco. Isn’t it beautiful? It is worth having it for the look alone. You might be able to grow it this year – you don’t need a lot of light – just not shade. Have some covers for any extended frost. If not this year, I hope you try it next.
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