Hello gardening gurus, I’ve recently bought two Grevillea rivularis – a critically endangered species endemic to Carrington Falls NSW – and brought them home to the further south coast of NSW, about 150km south. One of them (repotted into a slightly larger black plastic pot) is doing fine, but this one (in a large rusted metal pot, plenty of drainage, native soil mix with a half handful of neutrog bush tucker slow release fertiliser pellets added and some eucalyptus bark at the very bottom to aid drainage) is browning along the leaf edges of almost every leaf. There doesn’t seem to be any clear yellowing, only this brown singed quality. I can’t imagine it’s phosphorous toxicity as it’s in native soil with a native fertiliser, and it shouldn’t be overwatered, though I’m more than willing to be wrong on each of those assumptions. Could it be atmospheric salinity? I’m about 300/400m from the ocean. Or a fungal something?
All the other grevilleas we’ve got in the ground seem to be doing fine, and even the other rivularis is happy enough, though it was repotted more recently. Both had liverwort layers when I picked them up in case that’s of any consequence? Any help will be vastly appreciated, I’m incredibly invested in this particular species and so wanting them to thrive!
by pink_guava_llama
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