Gardenglove44
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Posts: 2
Joined: Mon Sep 07, 2015 12:47 am

Sweet Potato Plants

This is my first time on this site. How do you know when a sweet potato plant is ready to harvest? Thx!

imafan26
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Posts: 11611
Joined: Tue Jan 01, 2013 1:32 pm
Location: hawaii, zone 12a 587 ft elev.

Re: Sweet Potato Plants

Sweet potatoes are planted by slips usually early in the year. They grow vigorously so they need a lot of space and deep soft soil or the potatoes wont be very big. they will bloom near the end of summer and usually the potatoes are ready to harvest about 120 days after they are planted.

Where I am sweet potatoes are perennial so they don't die back, in colder places they will yellow and die back. Usually we just use a fork and lift out the tubers to check when they are ready. We leave the vines in place or replant slips where we have taken tubers out.
Happy gardening in Hawaii. Gardens are where people grow.

Gardenglove44
Newly Registered
Posts: 2
Joined: Mon Sep 07, 2015 12:47 am

Re: Sweet Potato Plants

Thanks! This is my 1st year to plant them and I just have 3 plants I planted in large deep pots for a trial run earlier this summer. I will try some gentle forking and see what I find!

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