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? on Sugar Baby Watermelons - greenhouse grown

Posted by jlm24 MA (My Page) on
Sun, Aug 19, 12 at 19:36


I have grown Sugar Baby watermelons in a greenhouse for the first time this year. I have read about many of the tests for ripeness, but have a question about a specific one. Read that, when ripe, there will be a yellow/whitish area that will appear on the fruit when ripe. Would that also be true of a greenhouse grown watermelon or is that something specific to a fruit grown on the ground? Thanks for any help you can provide! The fruits are now about 15" in circumference and no dried tendrils yet :>) Am getting anxious to try one of these!

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RE: ? on Sugar Baby Watermelons - greenhouse grown

  • Posted by Omni none (My Page) on
    Sun, Aug 19, 12 at 19:39

I made the mistake of cutting off 3 watermelons off their vines when they seemed big enough. It was a waste. Had I waited another 2-3 weeks, they would have been perfect!

You should wait for the dried tendrils/browning of the nearby leaf. Also, the yellowing occurs when you put the watermelon on the ground. Since one of my vines is pretty short, the watermelon sits on the granite and it doesn't have any yellowing, however I know its maturing because this was the very first watermelon I saw about 1 month ago.

RE: ? on Sugar Baby Watermelons - greenhouse grown

Thanks so much Omni. That's exactly what I am afraid of...picking it too early. Do you thump on the watermelon at all to test for ripeness? Is there any correlation to a slowing or stop in the growth of the fruit?

RE: ? on Sugar Baby Watermelons - greenhouse grown

The bottom should still be a lighter color if it's laying on something, but IMO that is the worst test for ripeness. The bottom is lighter almost the whole growth cycle of the watermelon. The dried tendril is better. One thing I (and it seems many others) tend to overlook is the maturity date right on the seed package. If the maturity date is 85 days, I can almost be sure that the melon will be close to ripe 85 days from setting out, or add 2 weeks if started outside from seed. In southern zones an experienced grower told me they ripen 5 weeks from fruit set, but in the north, in my experience, it's more like 7 weeks. There are several threads on watermelon ripeness. Experience helps a lot. I grew in containers this year, and with the hot summer we had the melons were actually a week ahead of schedule.

RE: ? on Sugar Baby Watermelons - greenhouse grown

  • Posted by Omni none (My Page) on
    Mon, Aug 20, 12 at 18:05

Also, I would look for BOTH, dried tendrils and yellowing. Thumping isn't really an accurate way of doing this, as you will have a different way of thumping.

The mistake I made was that I picked the watermelon when it had dried tendrils but was green all around (no yellowing). As I cut the watermelon open, I saw that only the center was red, and there was some green whereas the rest was all white.

Yellowing gives you a sense of age. I'm still experimenting as this is my first time growing sugar babies. I just brought in a melon today that had some yellowing and dried tendrils and it was great!I have two more watermelons outside where the tendrils are drying but no yellowing atm. They've been on the vine for quite a while so I'm really curious to see how they come out. Again, this will only make me more knowledgeable for the next growing season (hopefully I won't forget these lessons, lol)

RE: ? on Sugar Baby Watermelons - greenhouse grown

Thank you all! That is some great information and insights you provided. Now, if only I had paid attention to the fruit set date :>) Guess I'll be waiting until I see some signs of lightening in color somewhere and those dried tendrils. Just worrying because it is getting so large. Plenty more to come after this one so I guess the world wouldn't end if it weren't quite ripe when picked, but I am growing this one for a 2 and 4 yr old that have been following its progress quite closely so I don't want to disappoint with an under ripe melon.

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