Root Crops in the Fall

Radish, golden beets, and white turnip

If you’re seeing all kinds of lovely root vegetables at farmer’s markets this time of year, start planning now so you can grow them yourself next fall! I am so glad I decided to put in seeds for beets, turnips, and radishes back in August. These are all super-easy crops to grow, if you follow a few simple guidelines.

Here are the steps from thought to harvest:

  • Plan ahead! Buy your seeds for fall planting when you get the ones for spring and summer, because they may be hard to find later on. (Autumn root crops are usually grown from seed; buying plants is a waste of money since you only get one root per plant.) Radishes, beets, turnips, and carrots are all good choices.
  • Make space. Allowing room for fall crops can be difficult in a small garden. If some of your summer crops are not looking too great, take them out and prepare the bed for fall seeding. Or plant a bed with a summer cover crop or a quick-growing crop you know you’ll be removing soon, such as bush beans.
  • Prepare your soil. Root crops like a loose soil – try inserting a trowel into the soil, and if you have to force it in, you will not get a great root harvest. Add some compost! Raised beds provide the ideal environment, since the soil seldom gets compacted. Make sure your planting area gets plenty of sun.
  • Know how long your root crops will take to mature. It’s disappointing to not get edible roots because you didn’t allow enough time. Check HGIC’s planting guides for general information on timing, and also check the seed packet which will give you specifics for the variety you’re growing. Root crops are hardy and will tolerate frosts, so you can plan harvest for anytime from early October to late November, but the later you start the seeds, the slower the plants will grow. (This has more to do with the amount of sun than the temperature.) For a crop that lists 60 days to maturity from seeding, plant in mid-August (you’re allowing an extra week or two for the fall slowdown). Quicker crops like radishes can be planted in succession from late August to late September. Most root crops will sit in the ground just fine in cool weather, so you can harvest them as you need them.
  • Plant as directed. Don’t worry too much about spacing since you will be thinning later on.
  • Keep paying attention as the plants grow. Water regularly if it doesn’t rain, and take out weeds as soon as you can recognize which are the desirable plants. If your soil is low in phosphorus or potassium (which is unlikely), you may need to fertilize, but regular additions of compost through the year usually do the trick with these quick-growing crops. Thin the seedlings when they are several inches high – this means pulling out the plants in between a final set that are several inches apart. Think about what the roots will look like in maturity (what they look like when you buy them), and allow that much room plus a bit extra between plants. I find it easier to thin in two stages, taking out bunches when the plants are small and then a few more as they mature. You can eat the thinnings in salads, if you wish; they’re all edible and delicious.
  • Harvest when ready! All of these root crops will show some of the root portion above the soil, so you can check on size without pulling them out.

In practice, I’m often not on top of thinning, and it was hard to water enough this year with our persistent drought. So some of my root crops, especially the beets, are smaller than they should be. (On the other hand, some of the radishes are enormous.) But even with mistakes I manage to get good results! Try root crops next year and harvest some treasure from underground.

By Erica Smith, Montgomery County Master Gardener. Read more posts by Erica.

Beyond Broccoli Part Four: Down to the Roots

In this edition of Beyond Broccoli (see parts one, two and three for background) we’re going to start exploring some specific species and subspecies (varieties, groups, etc.) within the genus Brassica. Rather than address each species systematically, I’ve decided on an approach based on the plant parts we usually consume. Never fear, I will inform you when introducing each plant how they fit into the genus.

So let’s start at the bottom, with root vegetables.

Fuku Komachi turnips
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In praise of turnips

Are you a turniphead?

I sure am. And I’d love to turn this from an insult, with connotations of “lumpy, dull, bitter,” to a compliment meaning “smart gardener”! Turnips are a great cool-weather root crop and an excellent addition to spring and fall meals. They’re easy and quick to grow, offer variety and good taste, plus you can eat the entire plant.

To be fair, some varieties of turnip (and its cousin rutabaga) are used for animal feed, and as human food are valued mostly for their storage capacity. Turnips have fed people in the midst of famine and wartime rationing, and while this is a terrific feat for a plant, it doesn’t lead us to think of them as tender, delicate, spicy little treats. But they really are!

Turnips are a subspecies of Brassica rapa, which also includes many of the Asian greens such as Chinese cabbage, bok choy, and tatsoi, and the Italian rapini. Turnips likely originated in northern Europe, probably one of the first domesticated crops there, and later made their way to Asia, where many new cultivars were created. Until recently, most American seed catalogs listed one type of turnip – Purple Top White Globe – or if you were lucky maybe two or three (including Gilfeather which is actually a rutabaga). And listen, PTWG is a perfectly decent turnip, but it’s easy now to find more interesting fare. Many catalogs will at least sell you seed for one kind of round white Asian turnip, probably Hakurei. Grow these, from seed planted directly in the garden in late March or early April, or in September, and you’ll be rewarded about 45-50 days later with a perfectly white ball, mild and crunchy cut up for a salad, or tender and sweet when braised, roasted, or stir-fried.

You only need to do a few things to help your plants along. Provide a planting bed with loose soil that’s been amended with compost, give your plants plenty of water, and cover them with a floating row cover to keep off insect pests (and also rabbits, if you don’t have a fence. But you have a fence, right?). Turnips grow so fast that it almost doesn’t matter if the leaves get chewed a bit, but since they’re also edible, spicy in a mustardy way and great either cooked alone or mixed with other greens, you don’t want to have to pick off caterpillars. (If you really love turnip greens, you can grow types that produce leaves and not much in the way of edible roots, or add extra nitrogen fertilizer for the same effect. But why not have both greens and roots?)

Perusing catalogs with wider selections, you may find other types of round white turnips. I have no idea what the best one is, so pick what sounds good and experiment. You can also find red-skinned, white-fleshed types, which look really striking, though for some reason I’ve had trouble getting them to produce the few times I’ve tried them.

And then you can branch out into the weird ones, like Hinona Kabu, which I grew for the first time this year.

They are not actually meant to be that twisty and branched (the catalog photo looks like purple and white carrots) but I guess the bed I grew them in still has some issues with compacted soil. But it doesn’t affect the taste. This type of turnip is traditionally pickled, so that’s what I did. This is a fairly spicy turnip and the pickles add a nice potent bite to other foods. I made some squash soup the other night and offered various toppings to add, such as rye bread croutons, green onions, and cubed sausage, and also pickled Hinona Kabu turnips, along with Nadapeño pickles.

The pickling process turned the turnip slices pink – very cute! As with the round white types, there’s no need to peel these, just clean and remove some of the odd side roots.

I’m going to make sure turnips are a regular part of my spring and fall garden from now on. Frankly, there are few easier crops to grow, so why not? Let’s all be turnipheads!

By Erica Smith, Montgomery County Master Gardener. Read more posts by Erica.

Vegetable garden successes

One of the joys of this otherwise largely depressing year has been hearing the stories of first-time vegetable gardeners who took the step of growing some of their own food due to economic insecurity, extra time on their hands, a desire to give back to a community via food donation, or a need to be outdoors more. Welcome to the club! We would have a secret handshake, but that’s not such a great plan right now. Distance elbow bump pantomime!

The fall months are a good time to look back on the season and assess what worked and what didn’t. In this post I’m going to mention some of the plants and cultivars that produced well for me this year. I emphasize me and this year because a secret of vegetable gardening is that each year is different and each garden is different, so I’m not guaranteeing these will be as great for you, or even for me next year. But if the descriptions sound good to you, they may be worth trying.

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