Crotons (Codiaeum variegatum) have a bit of a reputation or dropping leaves - I suggest some ways of keeping yours fully clothed this winter; plus I answer a question about a Thanksgiving cactus and we meet listener Carol.
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I learn about the science of tissue culture and what it means for the houseplant industry with the help of Chris Reynolds, founder of tissue culture lab Seedless Labs. Plus I answer a question about an ivy and a Dracaena called Norman, and we hear from listener Karl.
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Professor Nox Makunga of Stellenbosch University in South Africa joins me to explain the pigments that give houseplant leaves their colours, I answer a question about a ‘Silver Ripple’ Peperomia and we hear from listener Mia.
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Illustrator Katie Vaz talks to me about her new book My Life in Plants and I answer a question about plants for a south-facing window.
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It’s the final part of my run-through of the various things you can use to make up your houseplant potting mixes, including perlite and vermiculite; plus I answer a question about a mixed planter.
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In the second part of my potting mix ingredients A-Z I work through from C to L, covering leca, leaf mould and coir, plus I answer a question about watering citrus trees, and we hear from listener Theresa.
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@plantswithkrystal joins me to talk about her new book, how plants help with grief, and that legendary chunky soil mix dance.