My greatest failing as a gardener is a “she’ll be right” attitude. It’s not a lack of concern, more an assumption that the plants will take care of themselves. After all, they got this far, didn’t they?
The result of this tends to be plants which start of thriving (in shops where people who actually know what they’re doing take care of them) and slowly fade into failing, disease ridden shadows of themselves.
As part of my pledge to actually harvest some of my produce this year I’m paying closer attention to my plants than I have in the past. Which is why I not only noticed that my passionfruit vine is sort of stagnating (it hasn’t grown or put on new growth since I planted it) and has leaves that are yellowing. This spells impending doom in my book.
Unfortunately googling the symptoms has put me no closer to the answer than I was before.
Apparently yellowing leaves can be caused by: evil viruses/diseases that I have no hope of eradicating (though which I might be able to avert if I were more experienced), nutrient deficiencies (from potassium to nitrogen to iron), wind and/or chilly weather (and/or the onset of Winter). I ask you: how am I meant to save my passionfruit plant with advice such as this?
It has been windier here than normal (the wind arrived with the cooler weather), but the plant is also in a pot with potting mix which probably isn’t very nutrient rich.
Given that I can do nothing about neither the windy conditions nor the evil killer viruses/diseases, I’ve decided to assume that it’s a nutrient deficiency. At least I might have a hope with that one.
Potash contains basically potassium and not much else. The citrus feed has a wider spread with (from greatest to least amount) nitrogen, potassium and phosphorous. If either of then contain iron then the information is being well hidden.
Since I have potash at home, I’m going to try feeding it with that and some general purpose fertiliser. I may even finally get out the seasol, something I’ve been meaning to do since I started worrying about my tomatoes! I’ll keep an eye on it for a week or two and let you know if it achieves anything.
How do you deal with yellowing leaves? Do you have a “plant and hope” approach to gardening?