7 Ways On How To Prevent Mold With Seedlings In Small Greenhouse - Krostrade

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7 Ways On How To Prevent Mold With Seedlings In Small Greenhouse

Are you wondering how to prevent mold with seedlings in small greenhouse? You will be confronted with a lot of considerations, including the temperature, airflow, and light that enters the greenhouse. Also, you have to consider the spacing of the seedlings inside their tray and the amount of water you give to your plants.

Molds that grow on your seedlings do not harm the plant. Its growth is more of an indication that your soil is too wet. Overly moist soil can quickly rot the fragile roots of the seedlings. If the roots are dead, eventually, the rest of the plant will follow.

This article will present to you seven ways on how to prevent mold with seedlings in small greenhouse.

how to prevent mold with seedlings in small greenhouse

Steps To Prevent Molds On Seedlings

Now, it’s time for you to learn how to prevent mold with seedlings in small greenhouse. In this section, we have compiled the necessary steps so that everything will be easier for you. Just read on!


#1 Temperature management

There is a range in temperature in which your plants can best photosynthesize. Keep the temperature inside your greenhouse between 77 to 82F. Anything above this can overheat your plants, especially if there is a heating mat present under the seedlings.

So, the first thing you need to do on how to prevent mold with seedlings in small greenhouse is to manage the temperature.


#2 Water management

The most common reason why molds grow on seedlings is because of overwatering. Since watering is an essential task done to help seedlings sprout, people tend to forget that giving plants too much water can harm them.

To solve this problem, use your finger and determine if the soil is dry. If it is, then that is the time you should water your seedlings. Simple and easy, but often neglected.

Another way to prevent overwatering is by applying the water from the bottom system. This type of watering system ensures that the top part of the soil remains dry while the roots get to soak in the water from the bottom.

Do not leave the water under the tray for too long, though. Make sure after 30 minutes, you throw out the remaining water inside. Keeping stagnant water will damage your plant more than benefiting from it.

If you already understand how to manage water for your plants, you can deal with how to prevent mold with seedlings in small greenhouse.


#3 Provide better air circulation

The best way to prevent mold growth is by improving the air circulation inside your greenhouse. Install an oscillating fan in the greenhouse and let the air blow directly on the seedlings. If you have a cover laid over your seedling trays, don’t forget to open them up so airflow can increase.

Having good air circulation has more benefits than just keeping your soil dry and preventing mold and fungal growth. It also helps the plants get stronger. That is why we highly recommend this advice because you get more benefits than one.

When you do follow this recommendation, pay close attention to the moisture level of your soil. The soil dries up quickly when there is a fan present. Yes, you need the soil to be dry, but not to the extent that there is no moisture left.


#4 Provide better lighting

The basic needs of a plant are water and sunlight. In this case, though, avoid letting your seedlings be under direct sunlight, especially when you have covers over the trays. Covered seedling trays trap the heat inside, therefore making the environment too hot, which damages the seedlings.

On average, per day, most seedlings need a few good hours of robust and indirect light. Research more on how much indirect light does your seedlings need so you can be confident about how long you will let it be under the light.


#5 Thinning out the seedlings

Overcrowding of seedlings can lead to less air circulation within your plants. And as we have stated above, one great way to prevent the growth of molds is with proper air circulation.

A way to solve this problem is by thinning out your seedlings. This method means pulling out a few seedlings from their trays. It gives more space to your seedlings to grow and avoids the crowding situation.

Here are the ways on how you can thin out the seedlings:

1. Repot your seedlings

Thinning out is more of removing seedlings and throwing them away while repotting is about transferring them to a different pot. Once you’ve correctly extracted the seedlings from the main tray, you can replant them in a reusable plastic pot and let them grown in there.

Other than plastic pots, there are many other sustainable options you can choose from, depending on your preference. In times today, people have been innovating plantable pots for convenience and sustainable purposes.  There is even a pot made from cow manure.


2. Disinfecting seed flats

Other than paying attention to the seedlings and its soil, inspect your seed trays for mold growing on it. There are mold spores that become dormant in the seed flats and then regrow after a while.

To avoid such complications from happening, always disinfect your seed trays after every use. Do not just keep on replanting on your trays without making sure that no mold spores are growing in them.



We have listed here seven excellent ways on how to prevent mold with seedlings in small greenhouse. It tackles the different problems and gives proper solutions to each one of them. With this knowledge, you won’t be able to see molds on your seedlings any time soon.


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How Long Do Azalea Bushes Bloom?

How Long Do Azalea Bushes Bloom?

If you’re trying to grow azaleas, you’re probably asking this question: How long do azalea bushes bloom? Before we get into that, you need to know more about this evergreen shrub.


Azaleas: The Basics

Countless gardening enthusiasts love azaleas because their presence can bring any garden to life. With their healthy and glossy green foliage and their brightly colored blooms that come in a variety of petal shapes, this type of rhododendron serves as one of the heralds of spring.

Although this favored garden guests come in many kinds, not all varieties can grow in the same region. However, as long as you choose the right tup of azalea variety, soil, as well as weather, and watering conditions, you can be sure that your azaleas will have what they need to thrive well and produce lots of flowers for months.

Among their distinguishing characteristics are their glossy, deep green-colored leaves that have small hairs on their surface. Furthermore, azaleas also feature single flowers instead of clusters.


Factors to Consider When You’re Growing Azaleas

Azaleas might be pretty, but if you’re not so sure about the factors you have to consider when you’re growing them, you won’t be able to make the most out of these plants.


Factor #1: They need a little love to get the best color

Azaleas may be one of the most reliable plants in your garden, but if you want them to show off their best colors and keep on producing the flowers you love, you need to give them some TLC. You can have the most blooms if you make sure that they get enough sun and get watered properly and on a regular basis.


Factor #2: The weather can influence their growth

Did you know that the weather conditions play a critical role in the bloom of your azalea? In case you’re not aware, the number of flowers they produce and the length of time they produce them are greatly affected when the temperatures dip. Expect their actual bloom dates to vary about a week or two.

The warmer the weather, the earlier their blooms erupt. What’s more, azaleas planted in these warmer areas bloom again in the fall.


Factor #3: There are over 900 species of them

You might be surprised to know that while azaleas have more than 900 species out there, you can find over 20,000 hybrids of Rhododendron spp., as well as azaleas. These all come in various shapes and sizes.

You can find azaleas that are both tall and spiky or bushy and small. They could look like they hug the ground or they could produce waves of gorgeous flowers dotting its canopy of deep green foliage.


How Long Do Azalea Bushes Bloom?

Generally, an azalea plant produces spectacular blooms for a period of three weeks during springtime. However, other types of azaleas also show off their gorgeous flowers during the summer depending on the region where they grow, as well as the weather.

In maritime and mild climates, the flowering season for azalea plants can be extended up to a period of seven months. On the other hand, azaleas that are planted in colder climates tend to have a shorter blooming time which could only range between three weeks to three months.

It’s best to select a type of azalea that blooms well during the milder months of the area where you plant them. To make this happen, make sure that you feed your azaleas with a balanced 15-15-15 fertilizer. In case you’re wondering, azalea plants will do well if they get more nitrogen.



Grow Your Precious Plants in a Mini Greenhouse!

If you don’t have enough space in your backyard, you might want to grow your plants in a mini greenhouse. Greenhouse gardening offers you loads of benefits that can help you take your gardening experience to the next level! Here are some of them:


Protection against bad weather conditions

Since a mini greenhouse is an enclosed space, you won’t have to worry about your plants when Mother Nature unleashes her fury. While other traditional outdoor gardeners get caught up making emergency preparations to ensure their plants’ safety, you can just sit back and wait for the storm to pass.


It keeps the pests and vermin away

Having a mini greenhouse can be a huge plus when it comes to protecting your plants from different types of destructive insects and animals. Your mini greenhouse serves as a barrier between your indoor garden and the pests.


You can control your plants’ growing environment

Creating an optimal growing environment for your plants will be much easier for you if you keep them in a mini greenhouse. Controlling the temperature, heat, and humidity levels inside the enclosed space won’t be difficult for you. What’s more, you can also choose to introduce beneficial insects to your garden to help your plant babies thrive well.


Extended growing seasons

With a mini greenhouse, you can effortlessly extend your plants’ growing seasons. It allows you to grow certain types of plants that aren’t native to your area.



Now that you finally know the answer to “How long do azalea bushes bloom?”, you might want to experience the wonderful benefits of greenhouse gardening today!


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