When to Plant Turnips for Deer: Best Timing by Zone

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Planting turnips at the right time can make a major difference in how well a deer food plot develops. The best planting date is not the same everywhere because climate, soil moisture, growing time, and the first hard frost all affect the result.

As a general guide, northern areas can often begin planting in July, while southern areas may wait until September. Turnips commonly need about 55 to 90 days to reach maturity, although the exact period depends on the variety and growing conditions.

A useful way to plan is to work backward from your area’s expected first fall frost. This gives the plants enough time to develop before colder weather arrives.

Quick Answer: When Should You Plant Turnips for Deer?

For many deer food plots, the practical planting window falls between mid-July and early September.

Region	Approximate Planting Window	Main Consideration
Northern areas	Early to mid-July	Earlier frost means more growing time is needed
Central areas	Late July to mid-August	Match planting with the local frost date
Transitional areas	Mid-August to early September	Avoid planting too close to the first frost
Southern areas	Early to mid-September	Warmer weather allows later establishment

A simple planning method is to target roughly 60–90 days before the average first fall killing frost. A more conservative approach is to allow 75–90 days for development.

The calendar should therefore be treated as a starting point rather than a fixed rule. If your local frost date is earlier or later than normal, adjust the planting date accordingly.

Why Frost Date Matters More Than the Calendar

Turnips are useful in late-season food plots because deer can use both the leafy tops and roots. However, the plants may become more attractive after the first hard frost.

Before maturity, the tops can have a somewhat bitter taste. After frost, changes within the plant can increase its sugar content, making the foliage more appealing. Peak feeding may occur around mid-October through early November in areas where other quality food is available.

This is why planting too early or too late can both create problems.

Too early:

• Hot, dry conditions can interfere with establishment.
• Plants may mature earlier than intended.
• Weed competition can become stronger.

Too late:

• Roots may remain small.
• Plants may not have enough time to mature.
• Cold weather can arrive before the plot reaches its intended development.

The goal is to give the crop enough time to establish while still having mature plants available during the period when deer are expected to use them most.

How Many Days Do Turnips Need to Mature?

Turnip maturity can vary considerably by variety and growing conditions.

Some turnips can mature in approximately 55 days, while broader estimates place maturity around 70–90 days. This makes it important to check the characteristics of the particular seed you intend to plant.

For planning purposes, allowing 75–90 days before the expected first hard frost provides a useful target.

For example, if your average first killing frost normally arrives around October 20, counting backward approximately 75–90 days gives you a starting window in late July to early August.

The calculation should always be adjusted to your actual location and weather pattern.

Best Planting Time by USDA Zone

A zone-based approach can make the timing easier to understand.

USDA Zone	Typical Frost Period	Suggested Turnip Window
3–4	Mid-September to early October	Mid-July to early August
5–6	Early to mid-October	Late July to mid-August
6–7	Mid- to late October	Mid-August to early September
8	Early to mid-November	Early to mid-September

These windows are practical planning ranges rather than guarantees. Local elevation, weather patterns, rainfall, and the actual frost date can shift the ideal timing.

How to Calculate Your Own Planting Date

Instead of relying only on a month, use your area’s average first fall frost.

Simple formula

Average first hard frost − 75 to 90 days = target planting period

A broader range of 60–90 days can also be considered depending on the variety and local growing conditions.

For example:

Expected First Frost	Approximate 90-Day Target	Approximate 75-Day Target
October 1	Early July	Mid-July
October 15	Mid-July	Late July
October 30	Late July	Mid-August
November 15	Mid-August	Early September

This approach is more useful than simply saying “plant in July” because two locations in the same state can have different frost patterns.

What Soil Do Turnips Need?

Good timing cannot compensate for poor soil conditions.

Turnips perform best in loose, well-drained soil that allows the roots to develop without remaining waterlogged. Loam is particularly useful because it can provide suitable structure and drainage.

The recommended pH ranges discussed for turnips fall around 6.0 to 6.8, with soil testing being the better way to determine whether lime or fertilizer is needed.

Poor drainage can increase the risk of root problems, while heavy clay can make root development more difficult.

Before planting, consider:

• Take a soil test.
• Correct pH if necessary.
• Apply nutrients according to the soil-test results.
• Improve soil structure where practical.
• Choose an area with good drainage.
• Avoid heavily compacted ground.

How Much Turnip Seed Should You Plant?

The seeding rate depends on how the crop is established.

Planting Method	Approximate Seed Rate
Broadcasting	10–12 lb per acre
Drilling	7–9 lb per acre

When broadcasting, seed-to-soil contact is important. A drag or similar method can help press seed into contact with the soil surface.

Turnip seed is small, so excessive planting depth can interfere with emergence.

One source recommends approximately ¼ inch for food-plot seeding, while other planting guidance uses different depths depending on the method. For a food plot, following the planting instructions supplied with the specific seed is the safest approach.

Should You Broadcast Turnip Seeds?

Yes, broadcasting can work well because turnip seeds are small and require relatively shallow coverage.

The important point is to avoid creating an excessively dense stand.

Overcrowding can lead to smaller or poorly formed roots because individual plants compete for available space and resources.

After broadcasting, focus on good seed-to-soil contact rather than burying the seed deeply.

How Far Apart Should Turnips Be?

Spacing depends on the planting method and the desired stand.

One practical recommendation is approximately 3–6 inches between plants. Other planting instructions use narrower spacing during establishment before seedlings are thinned.

The main principle is simple: avoid excessive crowding.

Healthy spacing gives roots room to develop and reduces unnecessary competition between plants.

What Temperature Is Best for Turnips?

Turnips are cool-season plants, and temperature plays an important role in establishment.

A useful soil-temperature range given for planting is approximately:

50°F–70°F

Established turnips can also tolerate cooler growing conditions, with one growing guide placing their preferred air-temperature range around 40°F–75°F.

For summer planting, moisture becomes especially important. A hot, dry period can make an otherwise well-timed planting struggle to establish.

How Much Water Do Turnips Need?

Turnips need consistent moisture while establishing, but constantly saturated soil is undesirable.

A useful reference is approximately 1 inch of rainfall per week when conditions are suitable. If rainfall is inadequate, supplemental watering may be necessary to keep the soil slightly moist.

The key is balance:

Moist soil = good

Soggy soil = problem

Excess water can contribute to root problems, while prolonged dryness can interfere with germination and early growth.

How Long Does Turnip Germination Take?

Under suitable conditions, germination can occur within approximately 7–10 days. Consistent moisture during the first 5–10 days is especially important for establishment.

During this period, avoid allowing the surface to dry completely.

Once seedlings emerge, inspect the plot regularly for:

• Uneven emergence
• Heavy weed pressure
• Dry soil
• Excessive plant density
• Areas affected by runoff or standing water

Early observation makes it easier to correct problems before the crop becomes established.

What Fertilizer Should You Use?

A soil test should guide the final fertilizer decision.

For general food-plot use, examples include 10-20-10 and 12-12-12 fertilizer. One recommendation is to incorporate fertilizer into the top 6 inches of soil at approximately 2–3 pounds per 100 square feet.

Nitrogen can also encourage plant growth, but excessive nitrogen may produce abundant foliage without providing the desired root development.

A practical approach is:

1. Test the soil.
2. Identify nutrient needs.
3. Apply the appropriate fertilizer.
4. Avoid excessive nitrogen.
5. Monitor plant growth rather than automatically adding more fertilizer.

How Should You Prepare the Food Plot?

Good preparation gives small turnip seeds a much better chance of establishing evenly.

A practical sequence is:

1. Choose the location

Look for an area with good drainage and adequate sunlight while still being situated where deer are comfortable moving and feeding.

2. Test the soil

Check the soil pH and nutrient levels before applying amendments.

3. Correct the soil

Apply lime or fertilizer only when needed based on soil conditions.

4. Prepare the seedbed

Create a reasonably loose surface without leaving large clumps or compacted areas.

5. Plant at the correct time

Work backward from the expected first hard frost rather than choosing a date at random.

6. Establish good seed-to-soil contact

This is particularly important when broadcasting.

7. Monitor moisture

The first 5–10 days are especially important for germination and establishment.

Which Turnip Variety Should You Choose?

Several varieties can be used in a food plot.

Examples include:

• Purple Top
• Purple Top White Globe
• Tokyo Cross
• White Milan
• Early Purple Vienna
• Golden Ball

Purple Top types are particularly useful where deer need easy access to the roots because portions of the root develop above the soil surface.

Rather than selecting a variety solely because of its name, consider its maturity period, local climate, soil, and intended planting date.

When Will Deer Start Eating the Turnips?

Deer may begin using turnips relatively early, including around germination, but heavy feeding does not necessarily happen immediately.

In areas where other high-quality food is available, stronger use may occur around mid-October through early November. The first hard frost can increase the sweetness of the plant and change feeding behavior.

This is one reason timing matters so much.

The objective is not simply to produce a crop. You want the crop to be well established and available at the right point in the season.

What Happens If You Plant Turnips Too Early?

Early planting is not automatically bad, but summer conditions can create challenges.

If the crop is planted during a prolonged period of high heat and insufficient rainfall, germination and early development can suffer.

An early crop may also reach maturity before the period when you want the roots and leaves to be most useful.

Watch for:

• Heat stress
• Dry soil
• Heavy weed competition
• Premature maturity
• Poor establishment

If summer rainfall is reliable and temperatures are manageable, earlier planting can still work in some locations.

What Happens If You Plant Too Late?

Late planting can be equally problematic.

Turnips need sufficient time to establish roots and foliage before severe cold arrives. If planting occurs too close to the first hard frost, plants may remain undersized.

As a practical warning, planting inside approximately 60 days before the average first frost can become increasingly risky, depending on the variety and conditions.

If your area has an unusually early freeze, moving the planting date earlier can provide a useful safety margin.

Can You Plant Turnips in September?

Yes.

September can be an appropriate planting month in warmer regions, particularly where the first hard frost arrives later.

Southern areas can often plant later than northern locations because the growing season continues further into fall.

However, September should not automatically be treated as the correct month everywhere. Your expected frost date matters more.

Can You Plant Turnips in July?

Yes.

July is particularly relevant for northern areas and locations with an earlier first frost.

Some food-plot guidance also describes successful plantings during May, June, July, and August when moisture is adequate and extreme temperatures are avoided.

For a northern plot, however, early July may provide a more useful starting point than waiting until late summer.

Common Mistakes to Avoid

A successful turnip plot is not just about putting seed into the ground.

Avoid these common mistakes:

• Ignoring the frost date
• Planting too deeply
• Using excessive seed
• Overcrowding plants
• Planting in poorly drained soil
• Applying fertilizer without understanding soil conditions
• Adding excessive nitrogen
• Allowing the seedbed to dry during germination
• Planting during unsuitable heat and drought
• Ignoring weeds during early growth
• Disturbing young roots while weeding

Small mistakes during establishment can become much harder to correct later.

Turnip Food Plot Checklist

Use this quick checklist before planting:

Task	Target
Determine first frost	Check your local average
Calculate planting date	60–90 days before frost
Preferred planning margin	75–90 days
Soil pH	Around 6.0–6.8
Soil	Loose and well-drained
Broadcast rate	10–12 lb/acre
Drill rate	7–9 lb/acre
Germination	About 7–10 days
Establishment moisture	First 5–10 days
Plant spacing	About 3–6 inches where applicable
Air-temperature reference	40°F–75°F
Soil-temperature reference	50°F–70°F
Fertilizer example	10-20-10 / 12-12-12
Fertilizer quantity example	2–3 lb/100 sq ft
Fertilizer depth example	6 inches
Rainfall reference	About 1 inch/week

Frequently Asked Questions

What is the best month to plant turnips for deer?

The best month depends on location. July is commonly suitable for northern areas, while September can work in southern regions. A frost-based calculation is more reliable than choosing one month for every location.

How many days before frost should I plant turnips?

Plan for roughly 60–90 days before the first killing frost, with 75–90 days providing a useful planning target for many situations.

Can I plant turnips in August?

Yes. August can be appropriate in many central and transitional regions, especially when the local frost date leaves enough growing time.

Can I plant turnips in September for deer?

Yes, particularly in warmer regions with a later first frost. Southern locations may successfully use September planting because the plants still have time to develop before freezing weather.

How long do turnips take to mature?

Depending on variety and conditions, turnips can mature in approximately 55–90 days. Some commonly used types can mature in around 55 days.

What pH is best for a turnip food plot?

The information reviewed places the useful target around 6.0–6.8, with specific recommendations ranging from above 6.0 to 6.5–6.8. A soil test is the best way to determine what your plot needs.

How deep should turnip seeds be planted?

For food plots, approximately ¼ inch is one specific recommendation. Because planting instructions can vary by method and seed, avoid burying small seed deeply and follow the instructions for your selected seed.

How much turnip seed do I need per acre?

For broadcasting, approximately 10–12 pounds per acre is recommended. Drilled plots may use approximately 7–9 pounds per acre.

Do deer eat turnip roots or leaves?

They can use both. Deer may eat the leafy tops as well as the roots, with feeding on the tops often becoming more attractive after the first frost.

Do turnips become sweeter after frost?

Yes. The information reviewed explains that the first hard frost can trigger changes that increase available glucose, making the previously bitter plant sweeter and potentially more attractive to deer.

Final Takeaway

The most reliable answer to “when should I plant turnips for deer?” is not one universal calendar date.

Start with your local first hard frost, then work backward approximately 60–90 days. For a more conservative schedule, use 75–90 days. In general, this places many northern plots in July, central plots in late July through August, and warmer southern plots in September.

Once timing is established, pay equal attention to soil pH, drainage, moisture, seed depth, seeding rate, spacing, and soil preparation. A well-timed planting can still struggle if the seedbed dries out or the soil remains poorly drained.

The goal is straightforward: establish healthy turnips early enough to develop properly, while keeping the crop available through the colder part of the season when deer are more likely to make substantial use of the roots and foliage.