How To Overwinter Lantana

Lantana survives winter indoors when you cut it back, reduce watering, and place it in a cool, bright room. If you are wondering how to overwinter lantana successfully, the process is simpler than most gardeners think. You do not need a greenhouse or expensive grow lights to keep these vibrant plants alive until spring.

Lantana is a tender perennial, which means it cannot handle frost. In colder zones, it is often treated as an annual. But with a little preparation, you can save your favorite plants year after year.

This guide will walk you through every step. From digging up the plant to storing it in a dormant state, you will learn the best methods for your specific climate and space.

Why You Should Save Your Lantana

Buying new plants every spring gets expensive. Lantana varieties with unique colors or strong fragrances are worth preserving. Overwintering also gives you a head start on the growing season. Established root systems produce blooms much earlier than new transplants.

There are two main approaches to overwintering. You can keep the plant actively growing indoors, or you can force it into dormancy. Both methods work well. The right choice depends on the space you have and how much light you can provide.

The most reliable method for cold climates is to move the plant into a cool, dark location and let it go dormant. This mimics what happens naturally in warmer regions during dry seasons. The plant will drop leaves and look dead, but the stems and roots remain alive.

Here is the step-by-step process for the dormant storage method:

Wait until just before the first frost. A light frost is okay, but a hard freeze will kill the plant.
Cut the lantana back to about 6 to 12 inches above the soil line. Remove all dead or diseased growth.
Dig up the plant carefully. Keep as much of the root ball intact as possible.
Shake off excess soil, but do not wash the roots. Some soil helps retain moisture.
Place the root ball in a plastic pot or a heavy-duty garbage bag. You can also use a cardboard box lined with newspaper.
Close the bag or container loosely. You want some air circulation, but you also want to prevent the roots from drying out completely.
Store the plant in a dark, cool location. The ideal temperature range is between 40°F and 50°F (4°C to 10°C). An unheated garage, basement, or crawl space works perfectly.
Check the plant once a month. If the soil feels bone dry, mist it lightly. Do not water thoroughly, as this can cause rot.

In early spring, about four to six weeks before the last frost date, bring the plant out of storage. Place it in a warm, sunny spot and water it well. New growth should appear within a few weeks.

Dormant Storage Tips

Do not be alarmed if the stems look shriveled. This is normal. The roots are the important part. If the stems feel mushy or smell rotten, you have a problem. Remove the damaged parts immediately.

Some gardeners prefer to keep the lantana in its original pot and cut it back hard. This reduces transplant shock. If you use this method, simply move the entire pot into the cool storage area. Water sparingly, just enough to keep the soil from pulling away from the pot edges.

Overwintering Lantana As A Houseplant

If you have a bright, sunny window, you can keep your lantana growing indoors all winter. This method is more rewarding because you get to enjoy the flowers longer. However, it requires more attention.

Lantana needs at least six hours of direct sunlight per day to thrive indoors. A south-facing window is ideal. If you do not have enough natural light, consider using a grow light. Standard LED shop lights work well and are inexpensive.

Before bringing the plant inside, inspect it carefully for pests. Lantana is prone to whiteflies and spider mites. These pests can quickly spread to your other houseplants. Here is what to do:

Spray the plant thoroughly with a strong stream of water to knock off any insects.
Apply an insecticidal soap or neem oil spray. Cover all leaf surfaces, including the undersides.
Quarantine the plant for two weeks in a separate room. This prevents any hidden pests from escaping.

Indoor Care Requirements

Once the plant is inside, place it in the brightest location you have. The temperature should be between 60°F and 70°F (15°C to 21°C) during the day. Cooler night temperatures are fine.

Watering is the biggest challenge. Lantana does not like wet feet. Allow the top inch of soil to dry out completely before watering again. Overwatering leads to root rot and yellowing leaves.

Humidity is also important. Indoor air is often dry in winter. You can increase humidity by placing a tray of water with pebbles under the pot. Just make sure the pot is not sitting directly in the water.

Fertilizing is not necessary during the winter months. The plant is in a slow-growth phase. Resume feeding in early spring with a balanced, water-soluble fertilizer.

Pruning Indoor Lantana

Indoor lantana will get leggy over the winter. This is normal. You can pinch back the tips of the stems to encourage bushier growth. Do this every few weeks.

If the plant becomes too large, do not be afraid to cut it back hard. Lantana responds well to severe pruning. It will bounce back quickly once spring arrives.

Watch for leaf drop. If the plant drops leaves suddenly, it is likely stressed. This can be caused by drafts, sudden temperature changes, or inconsistent watering. Adjust the conditions and the plant should recover.

Taking Cuttings For Overwintering

Another popular method is to take cuttings in late summer. This is a great option if you do not have space for a large potted plant. Cuttings root easily and produce compact plants that are perfect for indoor windowsills.

Here is how to take and root lantana cuttings:

In late summer, select healthy, non-flowering stems. They should be green and flexible, not woody.
Cut a 4 to 6 inch section just below a leaf node. Use clean, sharp scissors or pruning shears.
Remove the lower leaves, leaving only two or three leaves at the top.
Dip the cut end in rooting hormone powder. This is optional but speeds up the process.
Insert the cutting into a small pot filled with moist, well-draining potting mix.
Cover the pot with a clear plastic bag to create a mini greenhouse. This keeps humidity high.
Place the pot in a warm, bright location, but out of direct sunlight.
Keep the soil consistently moist. Roots should form in three to four weeks.

Once the cuttings have rooted, remove the plastic bag. Move them to a sunny window and treat them like mature plants. By spring, you will have several healthy, young lantana plants ready for the garden.

Caring For Young Cuttings

Do not let the cuttings dry out. They are very fragile during the first few weeks. Check them daily and water when the top of the soil feels dry.

If you notice mold growing on the soil surface, remove the plastic bag for a few hours to allow air circulation. Mold is a sign of too much humidity and poor airflow.

Once the roots are established, you can gently tug on the cutting. If you feel resistance, the roots are holding on. This is a good sign that the cutting has successfully rooted.

Preparing Lantana For Spring

Regardless of the overwintering method you choose, the transition back outdoors needs to be gradual. This process is called hardening off. It helps the plant adjust to outdoor conditions like wind, direct sun, and temperature fluctuations.

Start about two weeks before your last expected frost date. Place the lantana outside in a sheltered, shady spot for a few hours each day. Gradually increase the time and sun exposure over the next two weeks.

Bring the plant inside at night if there is any risk of frost. After the two-week period, the plant should be ready to stay outside full-time.

Before planting, trim away any dead or damaged growth. If the plant is root-bound, gently loosen the roots before placing it in the ground or a larger pot.

Fertilizing For New Growth

Once the plant is back outside, apply a slow-release fertilizer. This provides a steady supply of nutrients for the growing season. You can also use a liquid fertilizer every two weeks.

Lantana is not a heavy feeder. Too much fertilizer can actually reduce flowering. A balanced fertilizer like 10-10-10 is ideal. Avoid high-nitrogen formulas, as they promote leaf growth at the expense of blooms.

Water the plant deeply after planting. This helps settle the soil and reduces transplant shock. Continue to water regularly until you see new growth. After that, lantana is quite drought-tolerant.

Common Problems And Solutions

Overwintering is not always smooth sailing. Here are some common issues you might encounter and how to fix them.

Problem: Mold or mildew on the soil. This usually happens in dormant storage. The storage area is too humid or the soil is too wet. Remove the affected soil and allow the rest to dry out. Improve air circulation around the plant.

Problem: Whiteflies on indoor plants. These tiny white insects are a common pest. Use yellow sticky traps to catch adults. Apply insecticidal soap every few days until the infestation is gone.

Problem: Leaves turning yellow and falling off. This is often a sign of overwatering. Let the soil dry out more between waterings. It can also be a sign of low light. Move the plant to a brighter location.

Problem: Plant is not growing in spring. Be patient. Lantana can be slow to break dormancy. If you see no growth by late spring, check the roots. If they are firm and white, the plant is alive. If they are brown and mushy, the plant has died.

Regional Considerations

Your approach to overwintering lantana depends on your climate. In USDA zones 9 through 11, lantana is evergreen and can stay outside year-round. No special care is needed.

In zones 7 and 8, lantana may die back to the ground in winter but often regrows from the roots in spring. You can protect the roots with a thick layer of mulch. This is a low-effort option for mild winter areas.

In zones 6 and colder, you must bring the plant indoors. The dormant storage method is the most reliable. The houseplant method is also effective if you have enough light.

If you live in a very cold climate, consider growing lantana in containers. This makes it much easier to move the plants indoors and out. You can simply lift the pots and carry them to your garage or basement.

Frequently Asked Questions

Can I Leave Lantana In The Ground Over Winter?

Only if you live in a mild climate (zone 9 or warmer). In colder zones, the roots will freeze and the plant will die. You can try mulching heavily in zones 7 and 8, but it is not guaranteed to survive.

How Cold Can Lantana Tolerate?

Lantana can tolerate light frosts down to about 28°F (-2°C). However, a hard freeze below 25°F (-4°C) will kill the plant to the ground. The roots are more cold-hardy than the foliage.

Should I Cut Back Lantana Before Storing It?

Yes. Cutting it back reduces the amount of foliage the plant needs to support. This helps the plant conserve energy during dormancy. Cut it back to about 6 to 12 inches above the soil line.

How Often Should I Water Lantana In Winter?

For dormant plants, water very sparingly. Once a month is usually enough. Just mist the soil to keep it from drying out completely. For actively growing houseplants, water when the top inch of soil is dry.

Can I Overwinter Lantana In A Basement With No Windows?

Yes, if you are using the dormant storage method. The plant does not need light while it is dormant. Just make sure the temperature is cool and consistent. If you want to keep it growing, you will need grow lights.

Final Thoughts On Saving Your Lantana

Overwintering lantana is a rewarding way to save money and preserve your favorite plants. It takes a little effort, but the results are worth it. You will have vigorous, established plants ready to bloom as soon as the weather warms up.

Start by deciding which method works best for your space. If you have a cool, dark corner, try the dormant storage method. If you have a sunny window, grow it as a houseplant. If you want more plants, take cuttings.

Do not get discouraged if you lose a plant or two the first time. It happens. Learn from the experience and adjust your approach next year. With a little practice, you will become confident in saving your lantana year after year.

Remember to check on your stored plants regularly. A quick inspection once a month can prevent small problems from becoming big ones. And when spring arrives, you will be glad you took the time to protect your plants.

Your garden will thank you with a burst of color and fragrance that returns season after season. So go ahead and give overwintering a try. It is one of the best gardening habits you can develop.