In the spring, it’s easy to find information on how to fertilize roses. But what are some things you should NOT do? Here are 10 things not to do when fertilizing roses. Below you’ll also find a video from rose expert Paul Zimmerman with his fertilizer tips.
10 things not to do when fertilizing roses
Do not over fertilize
Avoid the temptation of excessive festering, it is better to think more. Too much fertilizer can burn the roots, stress the plant and lead to poor growth and fewer blooms.
Do not fertilize immediately after planting
Newly planted roses, especially on land that has already been prepared with fertilizer, should not be fertilized immediately. Allow them to establish before you begin your fertilization routine.
Don’t neglect the soil test
Before you start mixing your own fertilizers, it’s wise to do a soil test to understand what nutrients your soil really needs. Applying the wrong balance can harm plant health.
Do not use only synthetic fertilizers
Relying exclusively on synthetic fertilizers can deprive roses of the benefits of organic matter. Using well-rotted manure (Steer – Cow) or compost can improve soil structure and provide nutrients more gradually.
Do not fertilize during dormancy
In colder climates or when roses are dormant, they will not benefit from fertilization because they are not actively growing. Wait for the first signs of new growth to appear in the spring.
Do not apply fertilizer to dry soil
Applying fertilizer to dry soil can cause root burns. Make sure the soil is moist or water the roses before applying fertilizer.
Do not forget to water after fertilizing
Watering after applying granular fertilizers helps them dissolve and transport nutrients to the roots where they are needed.
Do not fertilize late in the season
Avoid fertilizing roses late in the growing season. Late fertilizing can encourage new growth that won’t have time to harden off before winter, leading to frost damage.
Don’t neglect mulching
Although not directly related to fertilizer, not mulching after fertilization can lead to moisture loss and temperature fluctuations that can stress plants. Mulch helps retain moisture and regulate soil temperature.
Do not ignore the manufacturer’s instructions
If you use commercial fertilizers, always follow the manufacturer’s recommended amounts and application times. Over or under application can lead to poor plant health and flowering.
Fertilizing tips from rose expert Paul Zimmerman
Rose expert Paul Zimmerman shares his expertise on fertilizing roses, along with pro tips and techniques for optimal rose health and bloom. Paul provides a simple and effective feeding program for garden roses and other plants. He recommends using three products:
- Time-release fertilizer -Temporary fertilizer is applied in the spring
- Fertilizer based on seaweed – seaweed based fertilizer is used every three weeks
- Organic food for roses – organic food for roses is applied in late summer.
Overall, the program is easy to follow and produces excellent results.