How To Fertilize Geraniums Successfully - Krostrade

Welcome to the Krostrade Marketplace, please excuse our appearance, we are still under construction.

How To Fertilize Geraniums Successfully

Taking notes on how to fertilize geraniums is crucial to ensure beautiful booms, so mark your calendar to do it every two weeks in the growing season. Fertilizing geranium will help prevent stunted or yellowing plants, making them one of the annuals that do well with feeding. This is also why working four inches of organic matter into the soil when planting is ideal. 

The University of Massachusetts Amherst even recommends constant fertilization. With these feeding facts and recommendations in mind, you should have thriving and beautiful geraniums either indoors or outdoors. However, you can always play it safe and use the greenhouse if you’re rooting geraniums

Remember that these plants will respond well to these techniques if they are in an ideal environment with their preferred conditions. 


How To Fertilize Geraniums Successfully

How To Fertilize Geraniums: What To Consider



Clemson University recommends fertilizing new flowerbeds and during the growing season. As mentioned earlier, the University of Massachusetts Amherst also said the benefits of constant fertilization. But what are the specific timings for these instances?

You can work the fertilizer in the flowerbeds upon planting or early in spring. And during the growing season, the geraniums will respond well with feeding every two weeks or four to six weeks when they are actively growing. You can also feed outdoor geraniums when your area experiences heavy rains because nitrogen can leach at this condition.

On the contrary, you don’t need to fertilize new indoor geraniums immediately. Instead, feed when they have established themselves and do so every four weeks in spring and summer. You can also fertilize indoor geraniums in the fall and winter every eight weeks, but dormant plants won’t require feeding.

When should you not fertilize geraniums? For starters, be careful not to overfertilize the plants, especially outdoor geraniums. They can cease to bloom, and they might need some time to rest with only water. 


Type of fertilizer

It’s not enough to mark your calendar on the recommended timings for fertilizing geraniums. For example, a typical fertilizer for new flowerbeds is a 10-20-10 fertilizer per 100 square feet. During the growing season, when they’re active, water-soluble fertilizer at half strength should suffice. 

You can then use the same fertilizer for follow-up feedings. Sticking with these recommendations will prevent overfertilizing and problems in nutrients that can negatively affect geraniums. Then, the conditions as the guide on what fertilizer to use to avoid drawbacks. 

For example, nitrogen leaching is expected during the rainy season. With this in mind, you can make sure that you’ll meet the outdoor geraniums’ nitrogen needs by feeding them with a 5-10-5 dry fertilizer. On the other hand, indoor geraniums in pots will have a different fertilizer requirement than those mentioned. 

Potted geraniums use a mix of soil, sand, and peat as a medium, and will need fertilizing once they’re established after two to three months. At this point, you can use two tablespoons of 20-20-20 water-soluble fertilizer to one gallon of water. Speaking of water-soluble fertilizer, this is also the best type for constant feeding of 200 to 250 ppm of nitrogen. 



Once you know the timing and types of fertilizer that work well with geraniums, the proper application will be the last crucial factor to success. For example, constant fertilization prevents nutrient problems, but overfertilization will also cause blooming and growth drawbacks. How does one avoid these problems?

If you’re using a water-soluble fertilizer, you can assume that you need to ensure an adequate amount of water and drainage as well. This way, water can drain through the medium or soil every time you water geraniums and prevent salt buildup. Remember that a medium with high salt content will negatively affect any plant.

You can also prevent this in the greenhouse by using sub-irrigation when you do liquid feeding of 150 to 200 ppm of nitrogen. You can then comfortably monitor the pH and salt levels in the medium. Once the geraniums undergo dormancy in winter, stop feeding to prevent the roots from drying. 

More so, avoid fertilizing outdoor geraniums when it’s scorching since the fertilizer can dry and burn the plants. Lastly, use fertilizer at half the original rate when you make a second application upon planting outdoor geraniums. 


Signs Of Nutrient Deficiencies In Geraniums

The most common symptoms of nitrogen deficiency are delay in growth, stunting, and yellow leaves. This is likely when the gardener doesn’t use a well-decomposed amendment on the soil since it will decay upon application and rob the soil of nitrogen. On the contrary, the plant can have red-purple lower leaves, weak stalks, and stems, leading to necrosis and death if they need potassium. 



Geraniums are one of those plants that respond well to feeding. But to avoid problems in deficiencies and overfeeding, you must know how to fertilize geraniums properly. Start first by learning about the timing, type of fertilizer, and proper application. 

In general, you can work the fertilizer on the soil of outdoor geraniums upon planting. On the other hand, you should only fertilize indoor geraniums once they have established themselves. Afterward, feed every two weeks while the plants are actively growing with a water-soluble fertilizer. 

And while geraniums benefit from constant fertilizing to avoid deficiencies, make sure that you are also watering them adequately. This will drain excess salts and prevent problems in growth later on. 


Leave a Reply

Your email address will not be published. Required fields are marked *

How to Start an Avocado Farm: 4 Things to Remember

How to Start an Avocado Farm: 4 Things to Remember

Are you interested to learn how to start an avocado farm? Embarking on this journey requires time, effort, and commitment. Plus, you need to consider a number of factors including soil preparation, as well as weather conditions.

You’re probably aware that avocado trees or Persea spp, are originally from Mexico. This explains why one of the famous Mexican cuisines include avocado-based guacamole.

You can choose to grow avocado trees indoors or outdoors. If you plan to grow them in a hobby greenhouse or at home, all you have to do is to sow the seeds in pots. When they’re grown outdoors, avocado trees can grow up to 40 feet. You can al

Moreover, these trees thrive well in regions where the weather is mostly warm and sunny. However, don’t expect them to grow in areas that experience extreme temperatures during the summer and winter.


Avocado: The Superfood

Did you know that the global demand for avocados has been steadily increasing? Aside from the fact that its fruit is known for its full, buttery flavor and rich texture, it’s also packed with loads of essential nutrients that are good for your body.

A single serving of avocado fruit contains vitamin K, vitamin C, folate, potassium, vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin E, manganese, magnesium, iron, copper, zinc, and vitamin A.  It also has protein, fiber, and healthy fats. If you’re on a low-carb plant food diet, you’d want to incorporate avocados into your diet.


What are the Growing Requirements of an Avocado Tree?

Since avocado trees need to be grown in warm semi-humid climates, they only grow in U.S. Department of Agriculture (USDA) plant hardiness zones 8 to 11. However, it’s important to note that while avocado trees may be grown in those zones, they don’t always thrive well in areas that get extremely hot during the summer or frosty, chilly, or snowy in the winter. This implies that the ideal environment for an avocado tree should have moderate temperatures all-year-round.


What are the 3 Primary Groups of Avocado Trees?

If you’re planning to start an avocado farm, you need to know the 3 main groups of avocado trees: Guatemalan, West Indian, and Mexican. Each type has its own ideal growing range.


Guatemalan Avocados

A Guatemalan avocado is known for its hard skin that features plenty of warts.


West Indian Avocados

This type of avocado tends to flourish in warm climates. Unlike the Guatemalan avocado, a West Indian avocado has thin and shiny skin and could weigh up to 5 pounds.


Mexican Avocados

A Mexican avocado thrives well in tropical highland areas. Compared to the other avocado groups, the Mexican avocado is more tolerant of cold weather. In fact, it can manage to survive even when temperatures drop to 26˚F.

Moreover, this type of avocado produces smaller fruit that weighs less than a single pound and its skin has a distinct papery-smoothness to it.


Expert Tips on How to Start an Avocado Farm

Unless you’re willing to take on a long-term project, spend a considerable amount of money on planting, and wait for a period of 3 to 5 years for your first harvest, don’t get into avocado farming. However, if you’re willing to go through the whole nine yards to enjoy top yields for many years, check out this guide:


Tip #1: Plant them in areas where the temperatures are consistently cool

Be sure to plant your avocado trees in cool temperatures that can range between 68˚F to 75˚F on a daily basis to avoid fruit drop. However, when they’re flowering, or when they’re starting to bear fruit, the humidity levels shouldn’t go below 50% at midday.


Tip #2: They don’t like wind

In case you’re not aware, avocado trees have brittle branches that easily snap off. For this reason, it’s best not to plant them in areas that are mostly windy because wind can cause considerable damage to their fruit.


Tip #3: Most of them need proper irrigation

If your avocados are rain-fed, they need to have at least 1,000 mm rainfall spread out throughout each year. Before their flowering season, avocado trees require a drier season that lasts for about 2 months. On a weekly basis, avocado trees need about 25 mm water.

It’s extremely important to test the quality of irrigation water because if its pH and bicarbonates are really high, they trigger a build-up of free lime in the soil. You also need to remember that high levels of sodium and chloride can have a negative impact on your avocado plants.

Since the plant’s roots are shallow, the ideal way to apply water is via a micro-sprinkler or drip. This ensures an even distribution throughout the avocado tree’s root area.

Moreover, proper moisture control needs to be ensured in the root zone because this area tends to easily dry up.


Tip #4: Determine the soil’s suitability and prepare it accordingly

You can’t just plant an avocado seed on soil that hasn’t been prepared accordingly. To prepare the soil for planting, you need to dig soil profile pits throughout your farm. Make sure that the pits are 1.5 m deep.

Only a single put per ha is required. However, you need to dig more pits if the location is non-homogenous or hilly. Check the color of the soil, its texture, structure, patches, sitting water, concretions, hardpans, stones, and gravel.



Grow Your Avocado Trees in a Hobby Greenhouse!

Since avocado trees require specific levels of temperature and humidity, you’ll find it easier to grow them in a hobby greenhouse. The enclosed space allows you to customize the environment to meet the needs of your plants. What’s more, it protects them from strong winds and the constant threat of pests.

Learning how to start an avocado farm outdoors is great, but growing them inside a hobby greenhouse is even better.



Leave a Reply

Your email address will not be published. Required fields are marked *

Sign up to our newsletter!