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Your clear-cut guide on how to fertilize petunias. What is the best petunia fertilizer? You might be surprised!

Petunia flowers are an all - around favorite prime for many . I am a gardener that always has petunias in my summer garden .

They are vibrant and versatile and can bring oodles of color to your landscape , container , and hanging basketball hoop .

To grow the most healthy and eye - catching petunias , right forethought and attention are important .

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Like most plant , petunias require food to perform their best .

In this template , you will learn about the best fertilizers for petunias and how you may put them to use for the most delightful floral display !

For more on How to produce Petunias printing press Here !

bright pink supertunias in tubs with white alyssum

Petunia Fertilizer Requirements

Before you start force - feeding any plants you require to feed your soil ! I preach this loud and long here .

Using compost , mulch , and manures tobuild organic soilis a farsighted plot but it will go Admiralty mile in helping you to keep your fertiliser costs lower and it is much just for the environs and our beautiful plant .

Because Petunia are make blooms so abundantly they need a steady supply of nutrients . Proper fertilization allow for what may be missing in your soil .

tidal wave silver petunia. Wave Petunias

Build Nutritious Soil!

Building your organic garden soil is essential for long - term gardening success . Here you will hear the best tricks for great garden dirt . Beginner gardener friendly !

What to Fertilize Petunias With

Many will say petunias need a balanced fertilizer with NPK numbers the same straight across . For example , 6,6,6 or 12,12,12 .

These stand for the primary nutrients most plants require . NPK stands for Nitrogen , Phosphorus , and Potassium .

It should be observe that most soils are not deficient in either Phosphorus or Potassium as neither wash from the soil .

Reviving your potted petunias and other annuals that may look like they are ready to give up the ghost. Refurbishing potted annuals is not hard but the rewards are more luscious blooms for the rest of the summer through Fall.

Nitrogen is the main food that can be leeched from soils with big pelting or frequent watering . Most expert agree all plant only require a alimental ratio of 3 - 2 - 1 , even Petunia .

So with all the choices out there which is the best ?

You do realize the best you will detect on the internet is more vox populi than really a definitive resolution ?

close up of lavender petunias with purple veins

Let ’s go with something that is not only heavy for the plant butfeeds the soilas well .

For me , I choose to stay off from synthetic fertilizers as they do nothing to work up soil wellness . If it is pink , blue or some other weird color then you recognize it is synthetic .

Right nowI am using AgroThrive as my go - to plant food . The nutrients are pre - digested so the works benefit immediately and it feeds the filth so it benefit the plant in 2 way .

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Stay tune as I am trialing a ‘ new to the securities industry ’ plant nutrient that is made from food waste and is 3 - 2 - 1 NPK ratio !

You may take that a high phosphorus fertilizer is needed for blooming plants but that is bunk . The so - calledBloom Booster fertilizersare just marketing .

Bloom Boosters Myth and Marketing!

How Often to Fertilize Petunias

What is the ideal frequency for lend oneself fertiliser to insure unbendable growth and keep them blooming ?

There are two type of needs :

Fertilizer for Hanging Petunia Baskets and for Petunias in Pots and Containers

When it comes to pots , hanging basketball hoop , and container you require to fertilize Petunia a turn more frequently than in the landscape .

What bring for me is ‘ weekly ” , “ weakly ” . That means I stretch the Agrothrive plant food by one-half and eat my petunias weekly .

This can work for most liquid fertilizers or those that you disband in water to apply .

Fertilize Petunias in the Landscape

The soil in my landscape has been amended withplenty of compostandchicken manurefor years and it is already full of nutrients so I usually only give the petunia in the solid ground a diluted shot of fertiliser once a month .

Did you bed that you could actually make your soil toxic by over - fertilizing ? Remember what I said earlier about the phosphorus and potassium not moving in the soil much ?

Well , if you keep adding those to the soil when there is already more than enough you’re able to do more hurt than good . you may even overdo it with compost .

Best Time-Release Fertilizer for Petunias

Okay , I get it , some are interfering and do n’t need the fuss of feeding flora hebdomadally or mixing up the melted fertiliser .

Espoma makes some effective constitutional time - firing fertilizers andPlant Toneis a general one you’re able to use .

There are several synthetical options out there you may use as well if you prefer . But most will recount you that even with the good prison term - release fertilizer petunias will need a bit of a boost with an extra bit of provender mid - summer .

Fertilizing petunias is not a hard outgrowth , but it requires some care to avoid overfeeding or make nourishing unbalance .

So let ’s take it one step at a time :

Soil Preparation

Before utilize any fertiliser , ascertain that your petunias are plant in well - draining filth .

Proper drain prevents waterlogged roots , which can run to root putrefaction . Additionally , check that the territory is loose and friable , set aside the roots to penetrate easy and access nutrient .

If you are using basket or container then employ good - quality potting stain . workshop around , say the ingredients , and choose accordingly . I prefermy DIY pot soilover buying all the plastic bag ones .

When to Fertilizer Petunias

For Petunia plant ingarden bedsor landscape , fertilize them at planting in Spring before they start actively spring up . ( not necessary if you have fecund dirt )

This initial feeding will set the level for healthy growth and abundant flowering throughout the growing time of year .

For hanging baskets and container , start fertilizing two weeks after plant , as the initial nutrients in potting mixes will begin to deplete .

Regardless of the case of fertilizer you select , always read and follow the producer ’s instructions .

The label will provide guidance on the appropriate software rates and frequencies .

Avoid the temptation to apply more fertilizer than recommended , excessive nutrients can conduce to harmful buildup in the dirt . ( commemorate what I told you about phosphorus and potassium not moving in the soil )

Also , do not use Epsom Salts , I partake in why here .

Frequency of Fertilizing

For most petunias , a cosmopolitan guideline is to inseminate them every 2 - 4 weeks throughout the growing time of year . ( I shared that I do it weekly with a dilute mix )

However , dissimilar fertilizer may have specific recommendations , so you could follow the teaching on the recording label .

Important Tips

Avoid Overfertilization

More isnotalways better when it comes to fertilize petunia . Overfertilization can conduct to the opposite of what you are trying to reach .

You could get exuberant maturation , weak theme , and few blooms . Stick to the advocate software rates to avoid this issue .

Watering After Feeding

Always water the petunia thoroughly after inseminate .

This helps to prevent fertiliser burn and ascertain that the nutrients get through the root zone where they are demand .

This is not necessary if using a liquid provender like Agrothrive .

Observation

Keep an center on yourpetunias throughout the growingseason .

If you notice any signs of nutrient deficiencies ( e.g. , yellow leaves , stunted growth ) , look at adjusting your fertilization routine .

Over - fertilizing can make the leaf turn yellow as can over - lachrymation . So slip on the side of care and know that more is not always better for your plants .

The number one Orcinus orca of plant is folks sample to over - love them .

So in conclusion by following these simple guidelines you’re able to have gorgeously bloom petunia all summertime long .

Are your petunias getting leggy and scraggily , they may necessitate a piece of pruning !

Reviving Petunias

How to come to leggy potted petunias that are looking spindly ! Pruning your Petunia can bring them back to see full and lush once again .

Hi, I’m Pamela