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When To Plant Annuals In Minnesota

After the last frost date is the best time when to plant annuals in Minnesota. Well, Minnesota has a whimsical weather-state, making it difficult for gardeners to predict the accurate period in terms of planting annuals.

Indeed, it’s a gardener’s nature to exactly presume the best dates in planting their annuals. But in a region with a fluctuating temperature state, it’s very subtle to predict so.

Having been said that early spring season is the best time to plant your flowers makes it easier for us to wait for the season to arrive, but temperature matters. To digest more when to plant annuals in Minnesota, read the tips below.

when to plant annuals in Minnesota

Planting Your Annuals

When the calendar slides to April, it is for sure that we can’t get away with the spring season. Gardens of flowers thriving endlessly are such magical sites to wander and see.

The fact is; some regions experience ironical seasons. If flowers bloom in other states, Minnesota is still covered with snowflakes.  A warm soil temperature, as well as the air, is essential for the plants to grow.

About that, let’s discuss further the right time for annuals to grow in Minnesota.


Last frost date

Winter season is quite fun, but not totally among gardeners who grow annual plants. For you to be able to grow annuals plants, be aware of the winter and frost dates that might hinder the growth of your annuals.

Annual plants are “one season” plants or flower that is replanted by gardeners each year. It is important to know if your annual plants can manage to survive in cold temperatures or could die to a chilling snap- mark the date in your calendar when the last frost is perceived to happen.

Check the weather forecast if it is predicted to have a warm or cold temperature as the date is near approaching.

These annual plants have a lesser firm structure when compared to the hardiness of perennial plants or shrubs. As a concern for that, they can be greatly affected when the cold temperature will arrive. Unlike the roots of perennial plants, annuals have a shallow depth of root system buried underneath the ground.

When the freezing weather rules the town, the water will turn into solid states and might harm the plants’ growth. In worst cases, some will die. Again, knowing the occurrence of frost dates will save your annuals from dying.


Nighttime temperatures

Of course, gardeners are very attentive in spotting the good temperature to their plants. They have high hopes for sunshine and eyeing on the occurrence of rainfall. Temperature sets a vital role in the plants’ growth.

Is it possible to plant annuals at night? Yes, it is the answer. But it still depends on the temperature at night time.

During warm days, you have the guts in planting your plants in a garden or containers.  These kinds of days fuel your confidence to grow your plants. Just remember the idea of night and day that a 60-degree day is expected to have a 40-degree night.

For newbies out there, waiting for your annuals to be planted in a constant temperature during night time that ranges from 55 degrees and above is said to be a good rule of thumb.


Dates of planting

The last step in planting annuals has to be based on its exact weather recommendation. With that, having patience is a good start in planting. Waiting is a good start in planting. There is no need to rush; patience is a virtue indeed.

For twin cities like Minnesota, the last week of May is expected for the frost dates to happen. In Minnesota’s northern regions, it runs until June. An average period like this can still have changed between earlier of the later time era.


Types Of Annual Plants

Are you planning to grow your annual plants? If yes is your answer, that’s great! Fill your area with flowers that may inspire you every single day. They are not just for display, but they are also agents of reducing our carbon footprints.

What’s the use of knowing when to plant annuals in Minnesota if you can’t apply it in the first place?

Before you make your choice, it is worth noting that annual plants have different types too. Not all annual plants that you see have equal root history. It’s time for you to avail of your most preferred style.


Hardy annuals

Annuals are classified into three varying groups and one from the list the hardy annual type. These types of annuals can quite manage the chilling challenge of cold temperatures.

Some of the hard annuals include a bachelor’s button, pot marigold, and sweet pea. It’s contrary to other annuals because their choice of temperature is cold weather rather than the sizzling summer heat.


Half-hardy annuals

Half-hardy is the second type of annual plants.  This annual can tolerate a 30-degree Fahrenheit weather. Plants that are included in this category are ageratum, cleome, dusty miller, nicotiana, petunias, and marigolds.


Exotic or tropical annuals

It is the most common and popular type annuals, among other types. But they are a soft type of annuals. Plants that are tropical annuals are begonias and impatiens. June is the planting period of this type.



Make it worth your time, learning while reading never goes out of trend. It is essential to know the things you’re wondering about. Now, you are already aware of when to plant annuals in Minnesota. Be mindful of the weather condition and frosting season.

If you’re planning to grow annuals, be a time-conscious gardener.

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How To Prevent Root Rot In Hydroponics: 3 Useful Tips

If you’re a newbie gardener who’s looking to find ways to hone your skills, you’d want to learn how to prevent root rot in hydroponics even before this problem affects your plants.

Hydroponics can be advantageous to crops in more ways than one. However, it also comes with risks of diseases, such as root rot, which can be destructive or even lethal to your plants.

Unfortunately, there are no effective methods to recover the wilted parts that were affected by the root rot once it hits your plants. The only thing you can do if you do not want this catastrophe to befall your crops is to prevent it before it happens. Read on to learn more about this subject.


What is Root Rot?

Root rot is a disease that attacks the plant roots and causes them to suffer decay. This usually happens when a lack of oxygen supply occurs in the substrate.

To give you an idea, think about plant roots that are submerged in water that only has a little oxygen in it. Over time, the plant suffocates and dies.

Aside from rot and decay, this disease also leads to the proliferation of fungi that are naturally present in the soil. These include Rhizoctonia, Alternaria, Pythium, Botrytis, Fusarium, or Phytophthora. As soon as fungi colonies start to grow, they tend to target the weakened roots and infect your precious plant babies.

Once the plant becomes infected, they won’t be able to take in what they need to grow – water, oxygen, and other nutrients. When this happens, it won’t be long before the plant dies.


What is Hydroponics?

In case you’re not aware, the term hydroponic is derived from a Latin word that means “working water”. To put it simply, hydroponics is an art that involves growing various types of plants without soil. If you’re like most people, the first thing that comes to mind when somebody talks about hydroponics would be a picture of plants with roots suspended into the water without using any type of growing medium.


Avoiding Root Rot in Hydroponic Systems

Detecting and identifying root rot can be tricky. When your plants get infected, their leaves and roots gradually wither until the whole crop itself dies from the lack of nutrients, which is a common symptom of many diseases.


What causes root rot in hydroponics?

One of the requirements in hydroponics systems is oxygen. Without it, your plants are basically on the road to death. On the other hand, lack of such is one of the major triggers for root rot, and it must be avoided at all costs.

Just like when planting in soil, you loosen up the ground so that your plants’ roots can have their required intake of oxygen. That is the case for crops grown in aqueous solutions as well. If they cannot breathe, they would not be able to grow.

Another agent for root rot is the temperature. The last thing you would want in your system are parasites that leech nutrients intended for your plants and infect the water during the process. In common terms, these fungi are called molds.

One of the best breeding grounds for these is warm and moist areas. For this reason, if the water temperature inside your reservoir is high, then you are susceptible to it. Something as minor as letting the solutions exposed to sunlight can already be a risk factor.


3 Useful Tips on How to prevent root rot in hydroponics

There is good news! Root rot in hydroponics can be prevented! Just follow these tips:

Tip#1: Use the right air pump

If you do not want root rot to affect your plants, you merely have to avoid its causes. If you need oxygen, keep the water bubbling by providing an air pump of appropriate size, and also give importance to proper ventilation in the room.


Tip #2: Maintain the temperature

The temperature should be maintained within the 70 to 80 degrees F range. Get rid of any materials that can make your system vulnerable to infections, and make sure not to disturb your crops while they are trying to grow.


Tip #3: Get rid of the rotten parts

However, if you failed in preventing the disease, then the rotten parts should be removed immediately. Cut them off as there is no chance of reviving them, and focus on the potential new growth instead. Fix your hydroponics system and eliminate the risks.


Why Give Greenhouse Gardening a Try?

Greenhouse gardening offers numerous benefits to greens aficionados who dare to take their gardening experience to the next level. Aside from acting as a shield against the effects of inclement weather, a mini, hobby, or semi-pro greenhouse can also serve as a protective layer that keeps harmful bugs and critters at bay.

What’s more, its enclosed structure allows you to control your plants’ growing conditions including the temperature, light, moisture, and ventilation of the greenhouse’s internal environment. With a controlled environment, you’ll be able to extend growing seasons and grow plants that aren’t native to your area.



No matter how well-informed you are about how to prevent root rot in hydroponics, you cannot completely eradicate the risks. Therefore, to avoid the worst-case scenario, you should be prepared to sacrifice the infected for the sake of others. While you’re at it, consider trying your hand at greenhouse gardening as well.


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