Can Mums Get Too Much Water? The Complete Expert Guide

Hi there! As an expert in home renovation and gardening, I often get questions about caring for mums. One of the most common issues gardeners run into is overwatering these popular fall flowers. Proper watering is so important for the health of mums. Give them too much, and you can easily do more harm than good.

In this guide, we‘ll dive deep into everything you need to know about watering mums. I‘ll share tips on how often to water, how to fix overwatered plants, ideal sunlight, troubleshooting drooping mums, and overwintering care. Let‘s get started!

What Do Overwatered Mums Look Like?

It‘s pretty easy to identify an overwatered mum. Here are the top signs to watch for:

• Drooping, wilting leaves and stems – Excess moisture damages roots, preventing them from absorbing water properly. This leads to limp, sad looking plants.

• Yellow or brown leaves – Too much water overwhelms the roots and causes nutrient deficiencies. This shows up as discolored, dying foliage.

• Leaf drop – Severely overwatered mums will drop many of their leaves as the plant declines. Examine the ground around the mum for excessive fallen leaves.

• Mushy or slimy leaves – Excessively wet soil leads to bacterial and fungal growth on the leaves, leaving them mushy or slimy feeling.

• Mold or fungus on leaves – These same excessively moist conditions cause mold, bacteria, and fungi to thrive, covering leaves in white, gray, or black growths.

• Stunted growth – Overwatering restricts root function, resulting in poor growth and shorter, smaller plants overall.

• Flowers dropping before opening – Too much moisture causes flower buds to drop before they can bloom, leaving you without those fall flowers.

• Plant collapse – In severe cases, the entire plant falls over as the damaged root system can no longer support it.

• Root rot – The most telling sign of overwatering is brown, mushy roots. Healthy mum roots should be firm and white.

According toresearch from the University of Illinois Extension, root rot affects a staggering 32% of potted mums grown commercially each year. Overwatering is one of the primary causes of this devastating disease. So it‘s crucial to get your watering routine right!

How Often Should You Water Mums?

When it comes to mum care, watering is one of the trickiest parts. How often you need to water depends on many factors:

• Mum variety – Some varieties are naturally more drought tolerant than others. For example, the Yoshino mum cultivar is prone to root rot if overwatered.

• Pot size – Small pots and containers need more frequent watering than larger planters.

• Season – During hot, dry periods mums require more frequent watering than in cool, damp weather.

• Environment – Indoor mums and those in arid climates need more watering than outdoor plants in humid environments.

As a general guideline, here are the recommended watering frequencies:

• Spring and Summer

  • Outdoor mums – 1-2 times per week

  • Indoor mums – 2-3 times per week

• Fall and Winter

  • Outdoor mums – Every 7-10 days

  • Indoor mums – Every 10-14 days

• In ground – Water mums 1 inch per week, provided by watering or rainfall. Break this up into 2-3 sessions.

• In pots – Check soil daily. Water when the top 1-2 inches become dry.

• New transplants – Water lightly every 2 days for 2 weeks to reduce transplant shock.

Rather than sticking to a fixed schedule, observe the mums and soil. Water thoroughly only when the top few inches become dry. The leaves may start to droop slightly when they need water. With experience, you‘ll learn how fast your plants use water and can adjust accordingly.

Now let‘s go over how to diagnose and fix overwatered mums.

How Do You Fix an Overwatered Mum?

Finding those drooping yellow leaves or mushy brown roots is disheartening, but don‘t give up on your mums just yet! Here are some tips to help overwatered plants recover:

Allow the soil to dry out

This may seem obvious, but it‘s an important first step. Stop watering and allow the excess moisture to evaporate. Place the pot in a sunny spot so the soil dries faster. Let it go completely dry if possible.

Add more drainage

One issue that contributes to overwatering is lack of drainage. Repot the mum in a container with holes or add more holes to the current pot. Put a 1-2 inch layer of gravel or stones in the bottom before adding soil. This creates space for excess water to drain away.

Repot in fresh, dry soil

Sometimes it helps to completely refresh the growing medium, especially if the current soil is waterlogged. Repot in a free-draining potting mix, ensuring it is dry before use.

Prune away dead foliage

Remove any dead or dying leaves and stems, trimming back to healthy growth. This helps redirect the plant‘s energy and removes damaged tissue that can harbor rot.

Move to a sunny location

Placing the mum in a spot with maximum sunlight helps stimulate new growth after the stress of overwatering. Rotate the pot regularly so all sides receive light.

Apply a fungicide

If fungal growth is present, treating with a commercial fungicide prevents the rot from spreading. Always follow label directions when applying.

Fertilize lightly

Once the mum starts looking better, begin fertilizing lightly with a balanced liquid fertilizer or compost tea. This provides nutrients to aid recovery. But don‘t overdo it!

Water carefully

Going forward, return to a careful watering regimen. Check soil frequently, water only when the top few inches are dry, and don‘t soak the soil. Be vigilant about drainage.

With some TLC, the majority of overwatered mums can make a full recovery. Just be patient and adjust care as needed. Your hard work will pay off in vibrant blooms.

Do Mums Prefer Sun or Shade?

To keep your mums looking their best, it‘s important to situate them properly when it comes to sun exposure. Mums thrive in full sun locations. Try to provide at least 6 hours of direct sunlight per day. Morning sun is ideal, paired with some afternoon shade.

Why is sunlight so crucial for mum health? Bright light:

• Encourages prolific blooms
• Keeps plants compact and upright
• Promotes strong root development
• Produces lush green foliage
• Helps dry excess moisture from leaves

Too much shade results in:

• Leggy, stretched out plants
• Fewer flowers
• Increased disease risk
• Susceptibility to overwatering issues
• Foliage discoloration

Some mum species are more shade tolerant than others. Ask your local nursery for mum variety recommendations based on your specific lighting conditions. But whenever possible, opt for maximum sun exposure.

Let‘s go over some common problems you may encounter with potted mums and their solutions.

Why Are My Potted Mums Drooping?

After spending months babying your mums, it‘s discouraging when the leaves and blooms start looking limp and sad. Drooping mums is usually a sign of an underlying issue. Here are some of the most common reasons potted mums wilt:

• Underwatering – Dry soil leads to initial drooping, especially on hot days. Check soil moisture and water plants showing these early signs of drought stress.

• Overwatering – Excess water damages roots, preventing them from absorbing moisture. Allow soil to dry completely before watering again.

• Temperature stress – Heat over 80°F or cold below 50°F can shock mums. Move potted plants to a protected location until temperatures improve.

• Insufficient light – Without enough sunlight, mums stretch and become limp. Relocate to the brightest spot or supplement natural light with grow lights.

• Overfertilizing – Too much fertilizer can burn roots and cause leaf scorch. Flush soil to wash away excess and avoid fertilizing stressed plants.

• Root problems – Compacted, diseased, or bounded roots impair the plant‘s ability to take up water. Check roots and repot if necessary.

• Pests – Insects like aphids and mites damage foliage and suck plant juices, causing wilting. Inspect carefully and use insecticidal soap if found.

Catch drooping in time and it‘s often an easy fix. But prolonged stress takes a toll, so address the underlying problem right away.

How Do You Keep Potted Mums from Dying?

Want to enjoy those colorful blooms year after year? Here are my top tips for keeping potted mums thriving season after season:

Location

• Place potted mums in full sun to promote flowering – at least 6 hours per day

• Provide afternoon shade in hot climates to protect blooms

• Move pots indoors before nighttime temps drop below 50°F

Water & Soil

• Use a rich potting mix formulated for containers

• Check soil frequently, water when the top inch becomes dry

• Ensure pots have drainage holes to prevent soggy soil

• Stop fertilizing 6 weeks before first frost to harden off

Care

• Feed with diluted liquid fertilizer every 2-3 weeks during spring and summer

• Prune spent flowers to encourage new blooms

• Monitor for pests like aphids; treat promptly if seen

• Keep foliage dry when watering to deter disease

• Repot in fresh soil every 2-3 years as needed

Follow this routine and you‘ll be rewarded with a thriving potted mum that blooms abundantly season after season.

What Causes Potted Mums to Turn Brown?

Nothing detracts from those vibrant fall hues like brown leaves full of dead patches. If the foliage on your potted mums is looking drab and crispy around the edges, there are a few possible causes:

• Underwatering – Dry soil leads to initial browning at the tips and edges of leaves. Increase watering frequency.

• Overwatering – Too much moisture causes root rot and nutrient deficiencies, browning the leaves. Allow soil to dry between waterings.

• Temperature extremes – Heat over 70°F or cold below 50°F causes leaf scorch. Move mums to an ideal 60-65°F location.

• Insufficient light – Without at least 6 hours of direct sun, foliage yellows and eventually browns without adequate light.

• Fertilizer issues – Too much fertilizer burns roots and leaves, while too little lets deficiencies develop. Use properly diluted fertilizer every 2-3 weeks.

• Salt buildup – Accumulated fertilizer salts on the roots or in the soil can burn leaf margins. Flush soil regularly to remove excess salts.

• Pests or diseases – Insects, fungi, bacteria, and viruses can damage foliage. Inspect closely and treat any issues found.

Catch browning leaves early and troubleshoot the cause. Adjust your care to resolve watering, temperature, light, fertilizing, or pest issues before lasting damage occurs.

Do Mums Come Back Every Year in Pots?

This is one of the most common mum questions I get. Unfortunately, the answer is generally no – mums sold in pots and containers will not return the following year. These mums are grown as annuals. The blooms fade, foliage declines, and the plant dies with the first hard frost.

However, there is a way to get potted mums to come back year after year. The secret is planting them in the ground in fall!

Follow these steps:

• Select a sunny spot with well-draining soil
• Plant the mum outdoors before expected frosts
• Mulch heavily after the ground freezes
• Remove mulch in spring after danger of frost passes
• Fertilize to encourage new growth

It takes some work, but mums planted in the garden readily return the next year, rewarding you with their vibrant colors. Potted mums might not come back, but in-ground mums will thrive season after season.

Can You Leave Potted Mums Outside in Winter?

Potted mums have a hard time surviving cold winter conditions. Their roots are more exposed than in-ground plants, and the foliage is tender and susceptible to damage. So leaving potted mums outside over winter is not recommended.

Instead, protect potted mums through the winter in one of these ways:

• Sink pots in the ground – Place pots in a trench and surround with soil, leaves, or mulch. This insulates the roots.

• Move to unheated garage – An unheated garage provides seasonal protection from harsh wind, snow, and ice.

• Mulch heavily – Cover the pots with a deep 6-8 inch layer of shredded leaves, straw, or wood chips to protect the roots from freezing.

• Minimize watering – Only water minimally during winter, as soggy soil is more prone to freezing solid and damaging roots.

Come spring, you can begin transitioning the potted mums outdoors again after the danger of frost has passed. Just take steps to protect those roots through frigid winter weather.

Key Takeaways

• Check soil moisture before watering and only water when the top few inches are dry. Overwatered mums can be fixed by allowing soil to dry and providing better drainage.

• Plant mums in a spot with maximum sunlight – at least 6 hours per day. Insufficient light leads to wilting and leggy plants.

• Frequently dropping blooms, leaf scorch, and stunted plants indicates over or under-fertilizing. Use a balanced fertilizer at recommended dilutions every 2-3 weeks.

• To get potted mums to come back yearly, you must transplant them into the garden bed in fall. Mulch heavily for winter protection.

• Protect mums in pots through winter by sinking, moving to a sheltered spot, or heavily mulching the pots.

There you have it – everything you need to know about watering, sunlight, troubleshooting, and overwintering care for potted mums. Follow these tips and you‘ll have thriving, healthy plants that bloom abundantly season after season. Let me know if you have any other mum questions!