Geraniums are beautiful annual flowers that can be grown in the ground, but they also make great container plants. They have a long bloom season and are easy to maintain, but if you want your geraniums to have lush foliage and profuse blooms, you need to fertilize them regularly with organic fertilizer.

The best fertilizer for geraniums is organic, so you can avoid harsh chemicals that may damage your plants. Organic fertilizers contain natural substances like manure and compost which are full of nutrients. These substances will feed the soil and help your geraniums grow strong and healthy.

When choosing an organic fertilizer, look for one that has a high percentage of nitrogen (N). Nitrogen is the element that helps plants grow leaves and stems. It also helps them produce flowers. The best organic fertilizers have a 10-20-10 ratio of nitrogen, phosphorus (P), and potassium (K). Organic fertilizers come in many different forms including pellets, granules, and liquids.

The most common form of fertilizer for geraniums is liquid fertilizer. Liquid fertilizers are made from concentrated solutions of nutrients that contain no soil particles or salts. They are usually sold in bottles with measurements on the side so you don’t have to measure out each dose yourself, just pour it straight into your watering can or directly onto the ground around your plants.

Benefits Of Organic Fertilizer For Geraniums

Organic fertilizers are good for your geraniums because they offer many benefits. The fertilizer you use will increase growth, blooms, and flower size. It can also increase color, fragrance, and resistance to pests and disease. If you’re growing in a warm or hot climate, or if your soil is poor quality (or both), organic fertilizers will help the plant keep up with the conditions by increasing its overall health.

If you have well-drained soil that doesn’t hold too much moisture, it may be best to avoid using fertilizer during summer months when plants can get burned by too much heat or waterlogged as a result of excess rainfall.

How Organic Fertilizer For Geraniums Works

The main benefit of organic fertilizers is that they are made from natural materials. This means that they are not harmful to the environment, or to your plants or soil. Organic fertilizers provide nutrients for geraniums in a way that’s easy on the plant and easy on you.

If you prefer not to use chemical-based fertilizers, try using organic fertilizers instead. It’s a great way to ensure your geraniums stay healthy and strong.

When To Apply Organic Fertilizer For Geraniums

  • During the growing season:
  • Apply fertilizer after watering, as well as after pruning. Pruning stimulates new growth, which means your plant will be ready to absorb nutrients more readily.
  • Before blooming:
  • Geraniums are heavy feeders and require more nutrients than other flowering plants at this time of year. Fertilizer can be applied during propagation, transplanting, or potting up.
  • After transplanting or potting up: The roots of geranium are very shallow, so it’s important to get them established before adding fertilizer.

How To Apply Organic Fertilizer For Geraniums

When you’re fertilizing geraniums, the best way to apply organic fertilizer is using a watering can. Water the soil, not the leaves. The soil should be moist but not saturated. Water in the morning so that it has time to dry out before nightfall when temperatures are cooler and moisture can cause fungal diseases. Water once a week as long as there’s no drought or rainy weather predicted for at least two days after watering. If there’s no rain in sight and your plants seem dry (their leaves will wilt), water twice or even three times per week until they recover their health and vigor.

How Often To Apply Organic Fertilizer For Geraniums

  • Monthly: Apply fertilizer once per month in the spring, summer, and fall.
  • Weekly: Apply fertilizer once per week in the winter.
  • Every other week: Apply fertilizer every other week in the spring and summer months (i.e., apply fertilizer on weeks 1 & 3).
  • Weekly: Apply fertilizer weekly during fall months.

Effects Of Organic Fertilizer On Geraniums

The effects of organic fertilizer on geraniums can be quite detrimental. If you use it, you might notice:

  • an overgrowth of algae
  • leaves turning yellow or brown
  • leaves falling off

In some extreme cases, using too much fertilizer can cause your plant to die.

Fish emulsion

Fish emulsion is a liquid fertilizer that’s made from the waste of fish, and it’s an excellent source of nitrogen. In addition to providing your plants with this important nutrient, fish emulsion also offers phosphorus and potassium.

Fish emulsion is not only easy to apply but also has a pleasant smell compared to some other organic fertilizers. It can be used on all types of flowers, herbs, vegetables, and trees because it provides nutrients that are beneficial for all kinds of plants.

Bat guano

Bat guano is a natural fertilizer made from the droppings of bats. It is high in phosphorus and nitrogen and is especially beneficial for flowering plants. Bat guano also contains potassium and magnesium, which are highly sought after by plants.

Bat guano can be used as an organic fertilizer for geraniums, but it’s important to remember that it should only be used on indoor plants since exposure to sunlight can cause damage to your plant over time.

Compost tea

Compost tea is a great way to use your compost. It also serves as a source of nutrients and organic matter for plants. Compost tea is made by mixing compost with water and aerating it for 24 hours. After this, you should filter out any large pieces of waste that may have floated to the top before adding them to your garden beds or containers.

Alfalfa meal

Alfalfa meal is a good source of nitrogen, potassium, and phosphorus. It also contains vitamins A, B, and C. Alfalfa meal is an excellent source of calcium, magnesium, sulfur, and iron.

Alfalfa meal can be used as organic fertilizer in the soil at a rate of 1 tablespoon per plant when you are transplanting geraniums into their permanent home. Mix it with compost to make your own homemade potting soil for transplanting.

Plantain meal

Plantain meal is a good source of nitrogen, phosphorus, potassium, and magnesium. It’s also a good source of sulfur. Plantain meal is derived from the dried leaves of plantains (plantago major). Plantains are part of the same family as spinach and chard. They grow in cool climates around the world and are easy to grow at home in your backyard garden.


Spirulina is a type of blue-green algae. It’s an excellent source of nutrients, including iron, calcium, and protein. Spirulina also contains healthy fatty acids and antioxidants that can help protect your plants from disease and environmental damage.

How does it work? Spirulina acts as a fertilizer by releasing nitrogen into the soil over time. When you add it to your soil mix or use it as mulch around the base of your plants, this will encourage them to grow bigger and healthier than they would otherwise be able to do on their own. The key here is patience: when using spirulina in this way, you should expect results over the course of several months rather than weeks or days, but once they start showing up, they’re worth waiting for.

How much should I apply? In most cases (if not all), no matter where you live or what kind of plant material you’re trying to fertilize with spirulina (or any other organic fertilizer), applying too much won’t hurt anything but might make things more expensive if money’s tight at home, and if money isn’t tight then there’s no reason why anyone couldn’t afford extra groceries for their favorite geraniums every now then anyway.

Worm castings

Worm castings are an excellent source of nutrients for your geraniums. Worm castings contain a high amount of nitrogen, phosphorus, potassium, and calcium. These nutrients are essential for the health and vigor of your plant.

In addition to being rich in nutrients, worm castings also serve as natural pesticides when used on your geranium plants. They prevent pesky pests from damaging or killing your plants by confusing them with their scent while also repelling insects by emitting toxins into the air around them.

Dosage Of Application

If you do not know the dosage of application for your specific plant, ask a specialist or your local gardening store for advice. The amount of fertilizer to apply depends on the size of the plant and the type of fertilizer used.

Additionally, consider how much sun and water each plant receives daily. These factors will determine how much fertilizer is needed for optimal growth and blooming.

Side Effects Of Organic Fertilizer On Geraniums

Organic fertilizers are not only safe for the environment and human consumption, but they’re also safe for geraniums. Organic fertilizers contain nutrients that plants need to grow and thrive. They can be used as a foliar spray or root drench, meaning you can apply them directly to the leaves or roots of your geraniums (and other plants).

Side Effects Of Organic Fertilizer On Geraniums

The only side effects of organic fertilizer are that it may cause some plant diseases if overused. However, this isn’t often seen unless you’re using homemade fertilizer mixes with too much manure in them.

In Conclusion

You can use organic fertilizer to provide the nutrients your geraniums need to grow. This type of fertilizer is safe for plants and won’t harm them or pollute the environment when it breaks down. Organic fertilizers are made from natural materials like manure, fish emulsion, or cottonseed meal.

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