As of: April 6, 2024, 5:00 p.m
By: Joana Lück
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Perennials can be found in most gardens. But how and when do you fertilize the lushly flowering plants? Read the answer here.
Perennials, a diverse group of colorful plants, offer a rich selection for every garden lover. To develop their full potential and guarantee abundant flowering, appropriate fertilization is crucial. Here you will find out how and when you should fertilize your perennials as well as which species are considered heavy feeders and which require less fertilizer.
Not all perennials are the same
Perennials like coneflowers need regular fertilizer. © BA-Patient/Imago
1. Timing of fertilizing
The timing of fertilizing perennials is crucial to their growth and flowering cycle. Generally, the best time to fertilize is in the spring, when perennials are emerging from hibernation and beginning new growth. A second fertilization in early summer can also be beneficial to support growth during the flowering period. It is advisable to reduce or stop fertilizing in late summer to prepare plants for hibernation.
2. How to fertilize
When fertilizing perennials, a balanced mix of nutrients is crucial. Use either organic or mineral fertilizers, depending on your preferences and the needs of your plants. Gently sprinkle the fertilizer around the base of the perennials and work it lightly into the soil. Be careful not to exceed the dosage stated on the packaging to avoid over-fertilization. Also remember to provide adequate watering.
The soil also plays a role
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3. Heavy eaters vs. weak eaters
An important aspect when fertilizing perennials is taking their nutrient needs into account. Some perennial species are known as heavy feeders, meaning they require a higher amount of nutrients to grow and bloom optimally. Heavy feeders include, for example, lilies, peonies and coneflowers (Echinacea). These plants benefit from regular and generous fertilization during the growing season. Fertilize here in spring with compost or horn shavings.
On the other hand, there are perennials that are considered weak feeders. These plants require less fertilizer and can even be damaged by over-fertilization. These often include wildflowers, lavender, sedum and some types of grass. It is important to assess the fertilizer needs of each plant individually and act accordingly.
4. The importance of soil quality and location
In addition to proper fertilization, soil quality is also crucial for the growth and health of perennials. A well-drained soil rich in organic matter promotes root growth and nutrient uptake. Before fertilizing, you should ensure that the soil is sufficiently moist to ensure optimal absorption of nutrients.
You can find even more exciting garden topics in the regular newsletter from our partner 24garten.de.
The location of the perennials also plays an important role. Plants that grow in sunny locations may need more fertilizer than those that grow in shade. Monitor the growth of your perennials and adjust fertilization accordingly for optimal results.
The editor wrote this article and then used an AI language model for optimization at her own discretion. All information has been carefully checked. Find out more about our AI principles here.