Michigan’s cool springs and early falls make turnips a reliable crop when planted in late April or August. Knowing the best time to plant turnip in Michigan is key to getting a good harvest. Turnips grow fast and prefer cool weather, so timing matters a lot in our state.
You can plant turnips for a spring crop or a fall crop. The soil temperature should be around 40°F to 60°F for good germination. Turnips taste sweeter after a light frost, so fall planting often gives you the best flavor.
This guide covers everything you need to know about planting turnips in Michigan. We’ll look at soil prep, variety choices, and care tips. Let’s get started.
Best Time To Plant Turnip In Michigan
For spring planting, aim for late April to early May. The soil needs to be workable and not too wet. Fall planting works best from early August to mid-August. This timing lets turnips mature before hard frosts hit.
Michigan has three main growing zones: 4, 5, and 6. The Upper Peninsula (Zone 4) has a shorter season. Lower Michigan (Zone 6) has a longer growing window. Adjust your planting dates based on your local climate.
Here’s a quick breakdown by region:
- Upper Peninsula: Plant spring turnips in mid-to-late May. Plant fall turnips in late July.
- Northern Lower Michigan: Plant spring turnips in early May. Plant fall turnips in early August.
- Southern Lower Michigan: Plant spring turnips in late April. Plant fall turnips in mid-August.
Turnips take 30 to 60 days to mature, depending on the variety. Check the seed packet for exact days. Count backward from your first expected frost date to plan fall planting.
First frost dates in Michigan range from mid-September in the north to late October in the south. Use this info to calculate your planting window.
Soil Temperature And Germination
Turnip seeds germinate best when soil is between 50°F and 70°F. You can use a soil thermometer to check. If the soil is too cold, seeds may rot. If it’s too warm, germination drops.
In spring, wait until the soil warms up. In fall, plant when soil is still warm from summer. Turnips grow fast in cool fall weather.
Here are the steps to check soil temperature:
- Insert a soil thermometer 2 inches deep.
- Take the reading in the morning.
- Repeat for a few days to get an average.
- Plant when the temperature is consistently above 50°F.
Choosing The Right Turnip Variety
Different turnip varieties work better for spring or fall planting. Some are faster to mature. Others handle heat better.
For spring planting, choose quick-maturing varieties like:
- Purple Top White Globe (55 days)
- Tokyo Cross (35 days)
- White Lady (45 days)
For fall planting, try these varieties:
- Golden Ball (60 days)
- Gilfeather (65 days)
- Seven Top (45 days, grown for greens)
Fall varieties often store better. They also develop sweeter flavor after frost. Spring turnips can get woody if left in the ground too long.
Preparing Your Soil For Turnips
Turnips grow best in loose, well-drained soil. Heavy clay soil can cause misshapen roots. Sandy loam is ideal.
Test your soil pH before planting. Turnips prefer a pH between 6.0 and 7.0. Add lime if your soil is too acidic. Add sulfur if it’s too alkaline.
Here’s how to prepare your garden bed:
- Remove rocks and debris from the soil.
- Loosen the soil to a depth of 8 to 10 inches.
- Mix in 2 to 4 inches of compost or well-rotted manure.
- Rake the bed smooth and level.
Avoid using fresh manure. It can cause forked roots. Also, don’t add too much nitrogen. This encourages leafy growth over root development.
Planting Turnip Seeds
Sow turnip seeds directly in the garden. They don’t transplant well. Plant seeds 1/4 to 1/2 inch deep. Space seeds 1 inch apart in rows.
Rows should be 12 to 18 inches apart. This gives room for the roots to grow. Water the soil gently after planting to avoid washing away seeds.
Here’s a step-by-step planting guide:
- Make a shallow furrow with a hoe or your finger.
- Drop seeds into the furrow, spacing them 1 inch apart.
- Cover seeds with soil and pat down gently.
- Water with a fine spray to keep soil moist.
- Thin seedlings to 4 to 6 inches apart when they are 2 inches tall.
Thinning is important. Crowded turnips produce small, misshapen roots. Use the thinnings as microgreens in salads.
Watering And Fertilizing
Turnips need consistent moisture for good root development. Water deeply once or twice a week. Aim for 1 inch of water per week.
Mulch around plants to retain moisture and keep soil cool. Straw, grass clippings, or shredded leaves work well. Mulch also helps suppress weeds.
Fertilize turnips lightly. Use a balanced fertilizer like 10-10-10 at planting time. Apply 1/2 cup per 10 feet of row. Side-dress with nitrogen if leaves look pale.
Avoid over-fertilizing. Too much nitrogen makes roots hairy and poor quality. Focus on phosphorus and potassium for root growth.
Pest And Disease Management
Common turnip pests in Michigan include flea beetles, aphids, and root maggots. Flea beetles make small holes in leaves. Aphids suck sap from plants. Root maggots tunnel into roots.
Use row covers to protect young plants from pests. Apply insecticidal soap for aphids. Rotate crops to prevent soil-borne diseases.
Diseases like club root and black rot can affect turnips. Club root causes swollen, distorted roots. Black rot causes yellow V-shaped lesions on leaves.
Prevent diseases by:
- Planting disease-resistant varieties.
- Practicing crop rotation (don’t plant turnips in the same spot for 3 years).
- Ensuring good soil drainage.
- Removing infected plants immediately.
Harvesting Turnips
Harvest turnips when roots are 2 to 3 inches in diameter. Smaller roots are tender and sweet. Larger roots can become tough and woody.
For spring turnips, harvest before the weather gets hot. Heat causes roots to become bitter. For fall turnips, harvest after a light frost for sweeter flavor.
Here’s how to harvest:
- Loosen the soil around the root with a garden fork.
- Grasp the base of the leaves and pull gently.
- Remove leaves from the root immediately to prevent wilting.
- Store turnips in a cool, dark place.
Turnip greens are also edible. Harvest them when leaves are 4 to 6 inches tall. Leave some leaves on the plant so roots continue to grow.
Storing Turnips
Fresh turnips can be stored in the refrigerator for 2 to 4 weeks. Remove the greens first. Place roots in a plastic bag with holes for air circulation.
For longer storage, keep turnips in a root cellar or cold basement. Ideal storage conditions are 32°F to 40°F with high humidity. Turnips can last 2 to 4 months this way.
You can also blanch and freeze turnips. Cut them into cubes, blanch for 2 minutes, then cool in ice water. Drain and pack in freezer bags.
Pickling turnips is another option. Fermented turnips make a tangy snack. They keep for months in the refrigerator.
Common Mistakes To Avoid
Many gardeners make the same errors when planting turnips. Here are some to watch out for:
- Planting too early in spring when soil is cold and wet.
- Planting too late in fall, so roots don’t mature before frost.
- Overcrowding seeds and not thinning properly.
- Using too much nitrogen fertilizer.
- Letting soil dry out, which makes roots tough.
Avoid these mistakes and your turnips will thrive. Pay attention to weather patterns in your area. Michigan’s climate can be unpredictable, so stay flexible.
Growing Turnips In Containers
If you have limited space, you can grow turnips in containers. Choose a pot at least 12 inches deep. Use a well-draining potting mix.
Plant seeds 1/2 inch deep and 1 inch apart. Thin to 3 inches apart once seedlings emerge. Water regularly to keep soil moist but not waterlogged.
Container-grown turnips may be smaller than garden-grown ones. But they still taste great. Place containers in full sun for best results.
Harvest container turnips when they reach 1 to 2 inches in diameter. They mature faster in containers because soil warms up quicker.
Companion Planting For Turnips
Turnips grow well with certain plants. Good companions include peas, beans, and onions. These plants don’t compete for nutrients.
Avoid planting turnips near other brassicas like cabbage or broccoli. They attract similar pests. Also, keep turnips away from potatoes, which can stunt their growth.
Here are some good companion plants:
- Peas and beans (fix nitrogen in soil).
- Onions and garlic (repel pests).
- Mint and dill (attract beneficial insects).
- Marigolds (deter nematodes).
Companion planting helps reduce pest problems and improves soil health. It’s a natural way to boost your turnip crop.
Fall Turnips For Winter Storage
Fall-planted turnips are ideal for winter storage. They develop higher sugar content after frost. This makes them sweeter and longer-lasting.
Harvest fall turnips before the ground freezes solid. Cut off the tops, leaving 1 inch of stem. Brush off soil but don’t wash them. Store in a cool, humid place.
You can also leave turnips in the ground over winter in mild areas. Cover them with a thick layer of straw mulch. Dig them up as needed during winter.
In Michigan, this method works best in the southern part of the state. Northern areas have colder winters that may freeze the ground too deep.
Turnip Greens: A Bonus Crop
Don’t forget about turnip greens. They are nutritious and easy to grow. Harvest them when leaves are young and tender.
You can cut the outer leaves and let the inner leaves grow. This gives you a continuous harvest. Greens are ready 30 to 40 days after planting.
Cook turnip greens like spinach or kale. They are rich in vitamins A, C, and K. Add them to soups, stir-fries, or salads.
Some varieties are grown specifically for greens. Seven Top and Shogoin are good choices. They produce lots of leaves with small roots.
Succession Planting For Continuous Harvest
To get a steady supply of turnips, try succession planting. Plant a new batch every 2 to 3 weeks during the growing season.
For spring, start in late April and plant until mid-May. For fall, start in early August and plant until late August. This gives you a continuous harvest.
Succession planting works best with fast-maturing varieties. Tokyo Cross matures in just 35 days. You can get multiple harvests from one season.
Keep track of your planting dates. Write them down in a garden journal. This helps you plan for next year.
Dealing With Michigan’s Weather
Michigan weather can be unpredictable. Late frosts in spring and early frosts in fall are common. Be prepared to protect your turnips.
Use row covers or cloches to protect young plants from frost. Remove them during the day if temperatures warm up. This gives plants some protection.
Heavy rain can cause soil compaction and root rot. Plant in raised beds if your soil drains poorly. Add organic matter to improve drainage.
Drought can also be a problem. Water deeply during dry spells. Mulch helps retain moisture and keeps roots cool.
When To Plant Turnips For Deer Food Plots
Many Michigan hunters plant turnips for deer food plots. Turnips are a favorite food for deer in fall and winter. Planting time is similar to garden planting.
For food plots, plant turnips in early August. This gives them time to mature before hunting season. Deer will eat both the roots and greens.
Mix turnips with other brassicas like radishes and kale. This creates a diverse food plot that attracts deer. Plant in areas with good soil and sunlight.
Turnips for food plots don’t need thinning. Plant seeds at a higher density. Deer will eat the plants regardless of size.
Frequently Asked Questions
Can I plant turnips in July in Michigan?
Yes, but July is hot for turnips. They prefer cooler weather. If you plant in July, choose heat-tolerant varieties and keep soil moist. Harvest in early fall before hard frost.
How late can I plant turnips in Michigan?
You can plant turnips up to late August in southern Michigan. In northern areas, plant by early August. Count back 60 days from your first frost date to be safe.
Do turnips need full sun?
Turnips grow best in full sun, at least 6 hours per day. They can tolerate partial shade but will produce smaller roots. Full sun gives the best yields.
Why are my turnips all leaves and no roots?
Too much nitrogen in the soil causes leafy growth. Also, overcrowding can limit root development. Thin plants and reduce fertilizer. Ensure soil is loose and well-drained.
Can I grow turnips in sandy soil?
Yes, sandy soil is good for turnips. It drains well and allows roots to grow straight. Add compost to improve moisture retention. Water more frequently in sandy soil.
Final Tips For Success
Planting turnips in Michigan is easy if you get the timing right. Focus on the best time to plant turnip in michigan for your area. Use a soil thermometer to check conditions.
Keep your garden bed weed-free. Weeds compete for nutrients and water. Mulch helps reduce weed growth. Hand-pull weeds near turnip roots to avoid damage.
Rotate your turnip crop each year. This prevents soil-borne diseases and pest buildup. Wait 3 years before planting turnips in the same spot.
Enjoy your harvest. Turnips are versatile in the kitchen. Roast them, mash them, or add them to stews. The greens are also delicious.
With a little planning, you can enjoy fresh turnips from spring through fall. Michigan’s climate is perfect for this cool-season crop. Happy planting.