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Growing Sunflower

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20 Apr 17 Debbie (South Africa - Semi-arid climate)
Want to grow sunflowers. I am in Malmesbury in the western cape. When is the best time to grow them. I have awefull clay soil so that i need to sort 1st.
21 Apr 17 John (Australia - temperate climate)
Looking at the climate for Malmesbury in Western Cape you seem to have fairly mild winters. wait until after any frosts are over then plant your seed. If you have heavy clay soil try and break it up a bit by adding gypsum. I would try and work in about 2kg per square metre. You could also plant field peas or lupins to help break up the soil. These can be forked in when they are flowering. If your soil is really degraded this should help. Alternatively plant some of the shorter varieties that only grow from knee to waist high. Sunflowers are quite tough and respond well to good watering. Trust this helps.
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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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