User Posts: Charissa Worthmann, M.Sc.

The Nissan Leaf's range has come a long way since its original launch in 2010! What started as a very basic model, the ugly duckling of Nissan Leafs, if ...

Big or small, short or tall — EVs have been around long enough to come in all shapes and sizes. We've looked at the big boys (like Tesla's SUVs), but what ...

Purchasing an electric car in the UK may seem like a daunting task. You'll most likely find yourself immersed in a maze of articles on the latest trends and ...

SunPower has walked a long road since its inception in 1985 to become synonymous with high-quality solar panels. While the company does provide several ...

Many of you may be struggling to find the perfect hydroponic water pump for your system. Understandable — there are tons to choose from, and it's never easy ...

Before we jump into hydroponic potato tips, let's take a moment to appreciate the round and robust vegetable that we have come to love. Roasted, sliced, ...

Hydroponic lettuce is a game-changer for those of you growing great greens without soils! Let's face it, the climate is changing, and our growing ...

Interested in learning how to grow hydroponic microgreens (the most nutritious form of growing greens) in a few simple steps? Then this article is for you! ...

Indoor vertical farming may be the answer to the questions surrounding our future food security. Cities are growing exponentially, and the planet simply ...

There is only one expression to describe a tower garden - up, up, and away! By ground or water, vertical tower gardening has provided an effective method ...

Looking to grow vegetables but have limited space? Fear not, for you are about to discover the top vegetables for vertical gardening! Most of you have seen ...

Interested in gardening and aquaculture? Have limited space to do so? Well, we might just have what you are looking for — vertical aquaponic gardening! ...

Browsing All Comments By: Charissa Worthmann, M.Sc.
  1. Reply
    Charissa Worthmann, M.Sc. Mar 18, 2022 at 8:19 am

    Hi Mike,

    Thank you for reaching out!

    Yes, the pH differences can become an issue. However, you’ll be surprised at how adaptable plants are with slightly different pH levels. The pH preferences are indicators for optimal growth but don’t necessarily refer to the range for survival. In the case of lettuce, it’s a pretty hardy crop that definitely can survive pH levels out of its optimal range.

    Although yellowing leaves are often a sign of iron deficiency, I’d advise that you look out for other contributing factors.

    Environmental factors are a major factor. For example, CO2 levels have a significant influence on your plant. Lighting and temperature are also impactful when it comes to leaf yellowing. In the case of lettuce, it needs good airflow in order to maintain solid nutrient uptake.

    I’d advise investigating those aspects of your grow so that you can take a more holistic approach to problem-solving.

    If you test your iron levels and find that they are off, you can consider adding chelated iron to your system. Thankfully, cheated iron is organic and should keep the fish, plants, and bacteria happy.

    Then, of course, your water source should be checked. There have been cases where magnesium or iron is missing from the water source itself.

    In summary, going back to the basic components of your system is always a great way to start the process of problem elimination. Start with the environmental elements, look at your water source, try to keep your pH at 7 (it’ll result in fewer adaptation issues for the lettuce), consider cheated iron, and maintain good airflow.

    Lastly, the brief answer to your question on a pH level that would suit both: pH 7.

    I hope this helps!

Climatebiz
Logo