Boron (Bo) deficiency occurs when plants do not receive an adequate supply of this essential micronutrient. A vital element for plant growth and development, a Boron deficiency can have significant negative impacts on plant health and productivity.
What are the symptoms of Boron Deficiency?
- Chlorosis – young leaves often first to show yellowing (chlorosis) and become distorted / wrinkled.
- Necrosis – brown or necrotic (dead) areas may develop at leaf tips and margins, leading to dieback.
- Thick and brittle leaves – can form.
- Stunted growth/reduced stem elongation – resulting in bushy appearance.
- Poor root development – reducing water and nutrient uptake.
- Impaired flower formation – leading to poor fruit set.

Boron Deficiency in Lonicera
How should you manage Boron Deficiency?
Prevent Boron deficiency with Micromax Premium. This high-performance granular fertiliser provides all essential trace elements, including boron, in a single application. Designed for maximum efficiency, it:
- Supports healthy plant growth for up to 16 months.
- Works effectively even in growing media with a pH above 6.5.
- Is easy and safe to use.
Micromax Premium is a key ingredient in our Levington Advance bagged range and Levington Advance bespoke mixes.
Correct Boron deficiency with Peters Professional Foliar Feed (27-15-12+TE). For a fast-acting solution, our premium water-soluble, foliar-applied fertiliser delivers boron directly to the leaves. Thanks to the unique M-77 chelating complex, trace elements remain available for quick absorption and lasting effectiveness.

Boron Deficiency in Ribes
Did you know?
While boron is essential, excessive application can lead to toxicity. Water quality is important. Have your water analysis done regularly, as some borehole waters can be high in boron, leading to toxicity symptoms in sensitive plants.
Boron availability is influenced by soil/growing media pH. Maintain the pH within the appropriate range (5.0 – 6.0) to ensure optimal boron uptake.
In field-grown crops, improving the soil organic matter content can increase boron availability to plants.

Boron Deficiency in Hibiscus
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