Answer: Average mature size for a jalapeno would be about 3 inches, a cayenne type would probably be in the 6 inch range or more depending on the variety. Average time to harvest for these types is about 70 to 75 days. (Your seed packets or labels should also tell you this information for your specific variety.) However, you can always pick a few for fresh use as soon as they are large enough to suit you -- try one and see! Enjoy your peppers!
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