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in Problem solving
I love Zinnias with their fabulous colours. I save seed from them every year but seldom get a good germination rate. I use normal potting/seedling compost and start them off in a warm place. Results are patchy to say the least. What am I doing wrong ?
You need to start them off in the dark. As soon as the seedlings have started to germinate, bring them out into the light. All of mine have germinated.