And if you’re serious about getting the most blooms out of your plants, this full care guide on keeping geraniums blooming covers everything from deadheading to sunlight needs.
When Should You Feed Geraniums? Timing Is Everything!
Geraniums in pots on balcony
Ideally, you should be feeding your geraniums throughout the different stages of their growth.
At the time of planting, a balanced, slow-release fertilizer is a good choice, as it allows for the slow release of nutrients, which can encourage early growth effectively.
As the growing season comes around, liquid bloom boosters applied every 2-4 weeks can perk up the flowers and promote healthy, vibrant blooming.
Quick Tip: Pull back on fertilization slightly after you get your desired blooming results; it helps maintain balance.
What Type Of Fertilizer Works Best?
fertilizer geranium
Although this is a very general guideline, container geraniums typically do well with liquid fertilizers high in both phosphorus and potassium. This nutrient combination should give you a massive flower increase.
If your geraniums are planted in the ground, a slow-release granular blend would be much more ideal. Either opt for a balanced formula (NPK 10-10-10) or a bloom-promoting one (NPK 5-10-5).
Whatever one you choose to go with, just avoid nitrogen-heavy blends (20-5-5) at all costs!
And for even better results, make sure you’re deadheading your geraniums regularly, fertilizer works best when spent blooms aren’t draining the plant’s energy.
Best DIY Fertilizers For Geraniums (No Chemicals Needed)
Geranium red flowers.
1: Banana Peel Tea
Banana Peel water as a fertilizer in the garden
Chop up some leftover banana peels and soak them in water for 2-4 days straight. Then, take that banana-peel-infused water and water your geraniums with it to give them an easy phosphorus and potassium boost.
You’re free to repeat this every 2-4 weeks, depending on how your geraniums react to it.
2: Crushed Eggshells
crushed egg shells for fertilizer to plant
If you have eggs every day for breakfast, chances are you probably throw away those eggshells. Well, believe it or not, you can actually make great use of those shells in the garden.
Crush the eggshells into a fine powder and mix them in with your geranium soil for better root health and healthier, stronger stems. Try to do this trick only once per month and not every day.
Curious what else you can feed with this kitchen scrap? Here’s a list of plants that benefit from eggshells and how to use them effectively.
3: Used Coffee Grounds
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