Time to Grow Turnips

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Quick-growing turnip 'Hakurei'

Fast-maturing and easy to grow, turnips always emerge as stars in the autumn garden. Sown after summer crops of onions, squash, beans or sweet corn, turnip seeds germinate within days, and tender greens are ready to pick within a month. Juicy roots come later, and you can grow turnips for greens, roots, or both. By growing different types of turnips, you can reap maximum reward from this ancient vegetable.

Turnip Types

I grow three different types of turnip, which are handled differently in the garden:

  • Oriental hybrids like 'Hakurei' and 'Market Express' produce sweet, white ping-pong ball size roots in only four to five weeks. Worthy of salads or stir fries, the mild-flavoured roots are the best type of turnip to eat raw. And, because the roots are harvested while quite young, you can harvest the greens in one fell swoop, too. Steamed, chopped and frozen, young turnip greens can stand in for spinach in most recipes. Red turnips like 'Scarlet Queen' and 'Scarlet Ohno Revival' should be harvested young, too, as the roots tend toward slight bitterness as they age.
  • Yellow turnips like 'Yellow Globe' go under many different names, and many gardeners (including me) prefer the flavour of golden turnip roots for braising, roasting and grilling. Because I want big, smooth roots, I rarely harvest greens from my yellow turnips so the roots can grow steadily. Yellow turnips are at their best after a couple of light frosts have passed.
  • Purple top turnips like 'Purple Top White Globe' are the best choice for prolonged production of greens, and for leaving in the ground through winter for pollinator-friendly yellow flowers in spring. In my experience, purple top turnips respond to cutting by developing numerous leaf buds all over the top of the root, Medusa-style, which enhances their ability to produce even more savoury, nutritious greens. If you want to grow turnips as a forage crop for homestead animals, purple top turnip is the type you want.

How to Plant Turnips

When planted after onions, potatoes, and other vegetable of summer, turnips are sometimes called a "mop up" crop because of their ability to utilise soil-borne nitrogen left from the previous crop. Still, I like to mix in standard application of a balanced organic fertiliser, watered in well, before planting turnip seeds. Additionally, deeply soaking the prepared bed helps encourage strong germination.

Thinned turnips
Thinned turnips

I like to grow yellow turnips in rows where I can carefully control weeds and spacing and thus get a uniform crop. Other turnips can be sown by broadcasting the seeds over a prepared bed, which works great as long as you can easily reach the centre of the bed for thinning and harvesting. Broadcast-sown seeds can be firmed into soil crevices by tamping the soil's surface with the back of a rake.

In beds or rows, the only trick to getting turnip seeds to germinate is to keep them moist for about three days. In sunny weather, I cover the seeded bed with a piece of burlap to keep it moist throughout the day.

How to Grow Turnips

Turnip seed germination is fast and sure, and thinning is usually necessary. Yet turnips grow so quickly that a single session of thinning and weeding is all that is needed to help them dominate their space. Flea beetles and other small insects may make small holes in young turnip greens, but the plants are so vigorous that they quickly outgrow the damage. Indeed, the only special care turnips need is regular water. Keeping the soil lightly moist encourages the growth of luxuriant greens and big roots with no splits and cracks.

Turnip greens
Turnip greens

Turnip greens taste best when they are young and have been exposed to several days and nights of cool weather. Similarly, turnip roots accumulate sugars as soil temperatures decline. For these reasons, it's best to harvest the season's best turnips after light frosts have arrived, but before your first hard freeze. Ugly or excess turnips can be carved into turnip candle lanterns for Halloween.

Overwintering Turnips

Mature turnips are surprisingly cold hardy. I have had roots survive at 0°F (-18°C) under snow, even when nibbled by deer. Turnips that survive winter promptly produce sprays of yellow flowers in spring. Both the unopened flower buds and the green seed pods are edible, and make interesting additions to soups and salads. But mostly I allow a few plants to bloom to please honeybees, which gather the turnip nectar when it's barely warm enough to fly.

By Barbara Pleasant

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Comments

 
"I teach elementary school students on organic gardening in our outdoor classroom. We are getting ready to plant fall crops from seed and will definitely include turnips. Most students are not familiar with turnips so this will be something new to watch them grow from seed, then harvest and have a demonstration cooking class at school. "
Rosalie Tubre on Friday 19 August 2011
"thank you for the info, was looking for info to grow them quicker, can I fertilize them? winter will soon be here and I like big fat ones."
Billie Patterson on Sunday 14 October 2012
"Hi,I'm from northern Alberta.We love yellow turnip in this area they get very wormy any tricks."
Faith Heather Burgwin Stewart on Wednesday 15 May 2013
"can you broadband turnips or do they need to be planted i have a atv trail for deer hunting and want to put some in trail will they grow and will in dark woods hurt the growing of them"
terry thieme on Saturday 1 June 2013
"I planted turnips in my garden but they seem to all go to seed and don't produce any turnips. Is it too hot or should I remove the ones that go to seed, or cut off the tops. "
Gordon Gillman on Saturday 13 July 2013
"I planted the purple top turnips for a deer food plot behind my house. The deer didn't pay much attention to them 'til January....but I wish I had videoed them then 'cos they literally dug them up through over a foot of snow and it was entertaining to watch the snow flying from their digging!....looked like a blizzard..lol."
Doug Porter on Friday 16 August 2013
"I all the time used to read piece of writing in news papers but now as I am a user of net therefore from now I am using net for content, thanks to web."
Clement on Monday 30 September 2013
"Thank you so much. We bought some seeds from a nursery- we were looking for spinach seeds. Bought the ones given by them, the pack was not labeled or marked, they said it was their own produce. But after much research we just realized today that the plants growing in my backyard are turnips!! How do I know what kind of turnip i'm growing and when to harvest? I sowed the seeds first week of this month. the temperature here is around 28deg C. I live in the middle east."
Anu Ramesh on Thursday 14 November 2013
"I am growing turnip Limousin this year. Never tried it before. Grows to 12 inches wide but best picked around 6 inches for tenderness. I always buy 'different' seed from realseeds.co.uk. Excellent company with amazing range."
Mel Morgan on Tuesday 21 January 2014
"turnips seem to go to tops not much in the root part, what would cause this?"
jim vonderheide on Wednesday 9 September 2015
"Can turnip greens come back up after fall harvest in the spring? I left the root."
Karen Johnson on Tuesday 19 January 2016
"Can't figure out why my garden will not grow turnips. The plants stay very small and never produce. What is wrong? "
Cyndie Jordan on Friday 1 April 2016

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