I have a large hoya in a water well pot on a south facing verandah and some of the leaves are turning yellow. It's climbing on a trellis on the open east end of the verandah and flowered well last year. I've been away for a while so has been neglected - please help as I don't want to loose it. It's part of my household! Does it need iron chelate?
10 August 2014 09:05 AM
Hoyas prefer to grow in a warm and sheltered environment. They dislike the cold so if they have encountered low temperatures and windy conditions in your area over the winter period - they will sulk and yellow.
Using a water well pot is a good idea in summer but if you intend to leave the hoya in situ, it is advisable to keep your plant on the dry side over winter.
I wouldn't recommend using iron chelates - apply some diluted seaweed extract instead then, when the weather warms up, apply half strength Thrive Roses and Flowers Liquid Plant Food, every fortnight.
They don't need iron chelates
From your friends at Yates Gardening